Self-control / counter control principle training kit
Experimental box adopts aluminum-aluminum alloy material, reference size: 480 × 360 × 100mm.
30sets / Month
Country of Origin
This vocational training equipment self control principle training kit experiment box is a self-control/counter control two-in-one teaching experiment system. The self control principle training kit adopts modular structure and can construct various types and orders of analog links and control systems. The vocational training equipment self control principle training kit can also carry out experimental teaching of computer control technology with microcomputer as the control platform, so as to achieve multi-purpose. The vocational training equipment self control principle training kit is also suitable for the teaching and skills training of related majors in higher vocational colleges and secondary vocational colleges.
1. Power supply:
Input single-phase three-wire ~ 220V ± 10% 50Hz. Output DC 5/2A, ±12V/0.5A power supply, with reverse and short circuit protection.
2. Core system:
It adopts 8088 microprocessor to facilitate computer control technology software programming; RS232 bus interface communicates with host computer (which can communicate with USB interface); it contains upper computer total clear reset and manual total clear reset circuits; including automatic lock zero and manual lock zero function.
3. Function generator:
The experimental box comes with signal measurement and signal display module, which can measure signal voltage (-5V ~ +5V), frequency, temperature, speed and other parameters.
4. Step signal generator:
It is generated by manual step (0/+5v, -5v/+5v), amplitude control (potentiometer), and nonlinear output group.
5. Function signal generator:
It can output sine wave, oblique wave, square wave, rectangular wave, relay characteristics, saturation characteristics, dead zone characteristics and gap characteristics. It has switch switching and digital tube displays waveform related information. The sine wave signal frequency range is 0.1HZ~2HZ and 0.8HZ ~ 50HZ, the resolution is 0.1HZ and 1HZ. The other waveform frequency range is 0.1HZ~250HZ, and the resolution is 0.1HZ. The amplitude range of the waveform signal is -6V~+6V, the amplitude resolution is 0.1V, and the distortion is no more than 0.5%, the impedance is no more than 50Ω.
6. Operational simulation unit:
Provides 8pcs OP07 basic operational amplifier analog units (for experiment), each unit's input loop has 6 sets of 0.5% precision resistors, or 5% precision capacitors, and the feedback loop has 7 sets of 0.5% precision resistors, or 5% precision capacitors, and one operational amplifier is composed. Another extended operational amplifier analog unit, one is variable null amplifier, constitutes proportional link, inertia link, integral link, proportional differential link, PID link and typical second-order, third-order system, etc.; the second is correction network library, it can form various correction links; the third is two sets of shaping modules.
7. Provide resistance-capacitance element library:
250K and 500K potentiometers, 2 sets of 0-999.9K direct-reading variable resistors, multiple sets of capacitors.
8. 1 set of D/A output:
Voltage: 0~5V or –5V~+5V
9. 4-channel A/D input:
There are two channels with 0~+5v voltage input and two channels with -5v~+5v voltage input.
10. 2 sets of sample holders and one-shot unit circuits
11. Provide precision reference voltages +Vref and -Vref
12. Timing and Interrupt Unit:
2 sets of timer counters and two-way interrupt sources.
13. Provide virtual oscilloscope:
1) 2 channels of analog signal input: It can measure phase plane display, frequency domain logarithmic amplitude frequency, phase frequency curve, amplitude phase curve, etc.
2) Time domain display mode of oscilloscope: Phase plane display (X-Y) mode of oscilloscope; frequency characteristic display mode of oscilloscope includes logarithmic amplitude frequency characteristic display, logarithmic phase frequency characteristic display (Bode diagram), amplitude phase characteristic display mode (Nyquist diagram), time domain analysis (radian) display mode.
3) The computer-controlled display mode of the oscilloscope.
14. Peripheral control object:
1) Stepping motor (35BY48) speed and angle control.
2) DC motor (BY25) pulse speed output and voltage speed output.
3) Temperature module adjustable pulse width input control and voltage input control heating, thermistor temperature measurement (0℃ ~ 76.5℃).
15. Support secondary development:
In addition to the analog operation unit and function generator, the 8253 timer, 8259 interrupt controller, analog-to-digital converter, and the digital-to-analog converter address of the experimental box are also open to the user.
16. Experimental box:
Adopts aluminum-aluminum alloy material, reference size: 480 × 360 × 100mm.
Automatic control experiment
1. Time domain analysis of linear system:
1) Simulation study of typical links
2) Second-order system transient response and stability
3) Third-order system transient response and stability
2. Frequency domain analysis of linear control system (Bode diagram, Ness diagram):
1) Frequency characteristic curve of inertial link
2) Frequency characteristic curve of second-order closed-loop system
3) Frequency characteristic curve of second-order open-loop system
4) Time domain analysis of frequency characteristics
3. Phase plane analysis of nonlinear system:
1) Typical nonlinear links
2) Second-order nonlinear control system
3) Third-order nonlinear control system
4. Calibration and status feedback for linear system:
1) Correction of linear system
①Frequency domain method series lead correction
②Time domain method series proportional differential correction
③Time domain method proportional feedback correction
④Time domain method differential feedback correction
2) State feedback and pole placement of linear system
5. Sampling control system analysis
6. Simulating DC motor closed-loop speed regulation experiment
7. Simulating temperature closed loop control experiment
Computer control technology experiment
1. Digital/analog conversion experiment
2. Analog/digital conversion experiment
3. Sampling and holding:
1) Sampling experiment
2) Sampling/holder experiment
3) Sampling/holding control system analysis example
4. Smoothing and digital filtering experiment:
1) Differential and smooth
2) Digital filtering
5. Digital PID Control Experiment:
1) Standard PID control algorithm
2) Integral separation PID control algorithm
3) Nonlinear PID control algorithm
4) Integral separation--Bang-Bang compound PID control algorithm
6. Minimum beat control system:
1) Minimum beat ripple system
2) Minimum beat ripple-free design
3) Minimum beat control system design example
7. Dalin algorithm:
1) Dalin algorithm with obvious ringing phenomenon and ringing elimination
2) Dalin algorithm with weak ringing and ringing elimination
3) Dalin algorithm without ringing
8. Multivariable decoupling control:
1) Multivariable decoupling control design
2) Multivariable decoupling control design
9. Secondary development of microcomputer control
Control system experiment
1. DC motor closed-loop speed regulation experiment
2. Temperature closed loop control experiment
3. Stepper motor speed control experiment
4. Analog/digital mixed temperature closed-loop control experiment


The best video conferencing earbuds are made from durable materials that won’t break or crack. You should choose an earbud with a soft, comfortable fit.
Video conferencing or teleconferencing has become more and more common thanks to the availability of smartphones and work from home phenomena. This is why you need to get the best earbuds for video conferencing.
This article will guide you to get the best earbuds for your needs.
Table of Contents
Earbuds for video conferencing. Best sellers
Top earbuds for video conferencing
If you want to watch movies on your tablet or phone and also be able to communicate with colleagues, clients, or business partners over video conferencing, then consider these top rated products.
#5. Bobtot Wireless Earbuds Bluetooth in-Ear Headphones
With this Bobtot wireless earbud headset, you can work form home, take part in video conferences and enjoy your favorite music anytime, anywhere.
Its built-in microphone and noise cancellation technology gives you crystal clear conversations, while its waterproof, sweat-proof design protects it from drops, sweat, dirt and dust.
With a compact size and lightweight construction, the Bobtot wireless earphones can easily go wherever you go.
This model features noise cancellation that allows you to enjoy your music and video calls with better quality.
#4. AVIWIS True Wireless Earbuds
AVIWIS is designed for video conferencing, and it is suitable for indoor and outdoor use.
AVIWIS true wireless earbuds are also designed for music lovers, who want to enjoy music anytime and anywhere without wires.
The AVIWIS Bluetooth true wireless earbuds are designed for the demanding demands of modern lifestyle. From music streaming to voice calls, the earbuds provide rich sound quality and offer great sound clarity. They’re also lightweight, comfortable and easy to wear.
#3. Earbuds Wired with Microphone Pack of 5, Noise Isolating in-Ear Headphones
Perfect for watching video conferencing, movies or listening to music, these headphones are designed for portable devices.
The headphones have an in-line mic so you can use them to chat on the phone or Skype on your laptop or computer.
Perfect for any office, desk, or dorm room.
#2. aowoka Bluetooth Headphones
- Immersive Stereo Sound: These music earphones with 13mm speakers and triple-layer composite diaphragms provide powerful bass, stunning treble and clear mids, both headphones can produce clear and loud stereo sound.
- Great Battery Life: The wireless earbuds alone provide up to 6 hours of high-quality sound output on a single charge, and the included charging case provides an additional 5 charges, giving 30 hours of total playtime.
- One-step Pairing: Pick up the two headsets from the charging case, and they will be paired automatically. Then simply enable bluetooth connection on your mobile phone to pair the device with your earbuds.
- Easy Touch Control: During using, you can touch either earbud to control the phone, such as the music switch, volume adjustment, phone calls, voice assistant, etc. No need to adjust through your mobile phones.
- IPX7 Waterproof: Earbuds feature with a waterproof mesh and a waterproof nano-coating inside, which prevents sweat from Immerse into earbuds and damaging the components due to sweat.
This wireless Bluetooth headset is built to keep you safe while you work and play! With built-in noise canceling, you’re free to concentrate on your call, and enjoy your favorite music when you want to relax.
It provides excellent audio quality and convenience. With touch controls on the earbuds, you can easily control music or take calls.
These are Bluetooth headphones with a built-in microphone for crystal clear calls in all kinds of environments.
#1. TOZO T9 True Wireless Earbuds Environmental Noise Cancellation
- [Environmental Noise Cancellation&Crystal-Clear Calls] TOZO T9 Earbuds featuring 8.0mm diameter speaker with crystal clear treble, 4 microphones deliver up to 3 times clearer calls than other truly wireless earbuds,reproducing your music vividly.
- [Stereo&Immersive Sound Quality] Adopt the advanced Bluetooth 5.3 technology. With 3D immersive stereo surround sound, high bass balance, strong signal, smooth connection when talking and listening to music, TOZO T9 support HSP, HFP, A2DP, AVRCP, which greatly improve the transmission speed and providing you with a low-latency listening experience.
- [IPX7 Waterproof] IPX7 water and sweat resistant waterproof nano coating is adopted to effortlessly protects the earbuds from heavy rain or sweat during intense workouts and all-weather conditions.
- [Tiny Size and Secure Fit Design] Mini and comfortable design earbuds, secure fit all shape of ears, so 100% safe and stable while running, biking, training, jogging, hiking, exercising gym exercise and so on.
- [Long Endurance] TOZO T9 earbuds lasts 9 hours for normal use (60% volume) on a single charge, quick charging technology enables 1.5 hours of listening from just 10 minutes of charge. The powerful battery allow for all day listening. which gives you excellent experience of long endurance.
The new TOZO T9 True Wireless Earbuds have been designed to deliver sound quality that will leave you speechless. With noise cancellation technology, the T9 True Wireless Earbuds eliminate background noise so that you can concentrate on what’s important to you, while enjoying crystal clear calls and music wherever you go.
A must-have gadget for video conferencing. And also a must-have gadget for every sports fan, the KORUBA Sports Bluetooth headphone is designed with an intuitive ear loop and noise cancellation so you can listen to your music without distraction.
Take your calls on the go with built-in call control. Connect seamlessly with your smartphone or other Bluetooth enabled device using Bluetooth technology.
Video conferencing is a huge part of our daily lives. In fact, we’re increasingly using it for meetings, team collaboration, online training, remote employee management, etc.
We’re also buying more and more of our devices, so it’s important that we know what to look for when choosing the best earbuds for video conferencing.
The world of video conferencing is getting ever more sophisticated. The latest devices are so small, light and easy to use that you barely know you’re wearing them. But even with all of the convenience, there’s still a lot to consider when buying a set of earbuds.
Noise isolation: How well does it reduce background noise?
The higher the number, the better. Noise isolation can be tricky to measure, but the best method is to take your headphones off and see how much noise you hear around you.
Bluetooth range: How far can you walk away from the device before losing connectivity?
This depends on the technology used in the device. But generally speaking, the greater the range, the better.
Battery life: How long will it last on a single charge?
This is probably the most important feature to consider. The longer the battery life, the more you’ll be able to use your headset for a longer period of time.
Ease of use: How easy is it to pair with a smartphone or PC?
This is another subjective feature, but it’s important to consider how well it works and how easy it is to use.
Price: Are you willing to spend a little more on quality?
A lot of times, the best audio products are priced a bit higher, but there are exceptions.
How to buy the best earbuds for video conferences
There’s a reason that so many professional video conferencing solutions are so expensive: they’re designed to be used for hours on end, and even the most basic headsets will begin to wear down over time.
But despite the high cost, there are some cheaper alternatives that you should consider.
Find the Right Headphones
This is probably the most important part of any headset purchase, so don’t skimp on this.
While there’s no single “best” pair of headphones for video conferencing, there are a few things you should consider. The most important is comfort:
Your ears should never feel pinched or sore from the pressure of the headphones, especially if you’re talking for long periods of time.
You should also consider durability.
The best pair of video conferencing headphones will be made of heavy materials like plastic, metal and rubber.
In particular, you’ll want to look for something with a cushioned headband and smooth, soft ear pads.


Network+ certifies the essential skills needed to confidently design, configure, manage and troubleshoot any wired and wireless devices.
CompTIA Network+ N10-007 has been updated and reorganized to address the current networking technologies with expanded coverage of several domains by adding:
- Critical security concepts to helping networking professionals work with security practitioners
- Key cloud computing best practices and typical service models
- Coverage of newer hardware and virtualization techniques
- Concepts to give individuals the combination of skills to keep the network resilient
|Module 1||Design and implement functional networks|
|Module 2||Configure, manage, and maintain essential network devices|
|Module 3||Use devices such as switches and routers to segment network traffic and create resilient networks|
|Module 4||Identify benefits and drawbacks of existing network configurations|
|Module 5||Implement network security, standards, and protocols|
|Module 6||Troubleshoot network problems|
|Module 7||Support the creation of virtualized networks|
Sorry, there are currently no scheduled dates for this course. Please check back later.


USB specifications limit connections to a maximum run of only 15ft. This can make placement of USB devices difficult, especially when longer runs are required in schools, conference rooms and other spaces that require a plenum cable.
Covid's Plenum USB Extender Cable eliminates the USB length constraint allowing for extended USB connections in plenum space.
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• USB A Male to USB A Female
• USB 2.0 compliant up to 480mbps
• Backward compatible with USB 1.0 standards
• Combine up to (3) cables for a MAX length of 96ft.
• It’s plug-and-play, no additional drivers required
• Cable length 32ft.
• RoHS Compliant
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This Dual Battery Monitor is designed to provide a guide indicating voltages on your Main and Auxiliary batteries in a dual battery set up or just a Main or just an Auxiliary when used in a single battery set up.


The Nigerian Communications Commission has given the assurance of its collaborations with multi-sector stakeholders which includes the Federal Ministry of Communications and Digital Economy, Nigerian Society of Engineers (NSE) and the Nigerian Medical Association (NMA), for a policy framework to push the deployment of 5G technology in the country.
According to information gathered, other stakeholders are the academia, Office of the National Security Adviser (ONSA), Association of Licensed Telecommunications Operators of Nigeria (ALTON), Association of Telecommunications Companies of Nigeria (ATCON), Industry Consultative Advisory Forum (ICAF) and others.
Prof. Garba Danbatta, its Vice Chairman speaking at the virtual Innovative Tech Forum organised by the National Information Technology Reporters Association of Nigeria (NITRA), had said that the economy stands to gain a lot from the 5G technology.
Highly represented by an Executive Commissioner at NCC, Ubale Ahmed Maska, Prof Dambatta, said;
“Our goal is that when the Federal Government is able to establish a policy that will drive 5G, all the benefits of 5G will be properly harnessed by Nigerians.
“The Commission is also working to ensure the safety of 5G networks in Nigeria by having a multi-stakeholder approach in environmental impact analysis on the use of 5G and the Electromagnetic Fields (EMF) impact on humans in Nigeria. Once this is done, Nigerians can safely utilise 5G and reap all the economic, human, and material benefits of 5G.’’
He also added that the economic benefits of the 5G post-COVID-19 will be huge, most especially because all businesses and activities of government are migrating online in a bid to showcase services provided. To this end, he said;
“5G will enable a new kind of network for Nigerians designed to connect virtually everyone and everything including machines, objects, and devices. It will usher in the era of the Internet of Things (IoT) and faster innovation in Artificial Intelligence (AI) applications.
“Nigeria’s vibrant youth population stands to benefit immensely from the deployment of 5G as it will offer technopreneurs, technology enthusiasts, SMEs, and Tech-startups the platform to expand and network with other global players on a scale that has never been witnessed before.”
“With high speeds, superior reliability, and negligible latency, 5G will expand the mobile ecosystem into new realms. 5G promises to impact every industry, creating safer transporting systems, improving access to healthcare for our rural populace, increasing output from the agriculture sector, and digitized logistics among others.”
“5G promises to provide increased speed and bandwidth as well as providing deeper coverage to reach people in rural or challenging locations.
“In addition, 5G will provide strong security for the various sectors of government and private organizations. Due to its sheer scale and scope, the ITU predicts 5G will accelerate the achievement of all 17 Sustainable Development Goals (SDGs) from affordable and clean energy to zero hunger,”. He concluded.


2SA8-Series Rotary Electric Actuators
The 2SA8 series of intelligent variable frequency electric actuators is a new generation of intelligent variable frequency electric actuators developed by SURPASS. This product adopts vector frequency conversion control, fuzzy control, adaptive control and other technologies, which can change the direction of the motor, and can also accurately control the motor. It can completely replace imported executive agencies. The 2SA8 series is a large-screen touch button design, which can remotely debug, operate, monitor, diagnose and download information on the actuator through the mobile phone APP. It has the characteristics of variable frequency speed regulation, high efficiency and energy saving, slow opening and closing, precise positioning, lack of phase protection, self-diagnosis, bus technology, remote control (mobile APP remote control), touch buttons, etc.
●Absolute encoder: High-precision encoder provides more accurate data, which can be accurately checked
Measure the valve position.
●IP68 protection level: double-sealed structure, non-invasive design, avoid dust or liquid
●LCD touch screen: large screen, full touch screen buttons, more beautiful
●Quality parts: high-precision mechanical parts, high-quality circuit boards
●Mobile APP control: The mobile phone can query and set parameters in real time, which is convenient for maintenance
Protection and judgment


Driving faster connectivity in a digital world
Nov 24, 2016
We’ve come a long way since Nordic Mobile Telephone introduced the first 1G system in 1981. This was followed by 2G in 1992, 3G in 2001 and 4G in 2012. We live in a more mobile world than ever before, with the International Telecoms Union predicting that there will be more mobile phones than people by 2014. Consumers use their phones to listen to music, stream videos, video chat with their friends and share content via social media. And their data connectivity expectations are changing. They aren’t happy to wait five minutes for a video to load. The introduction of 4G in 2012 is the first step in achieving this faster connectivity but companies like Huawei are pushing this even further by working on 5G problems. Karen McCandless finds out more from Huawei research fellow Tong Wen.
The key driving force behind the development of 5G services is customer demand and the rise of what is known as big data
With 4G still in the early stages of adoption, why is Huawei already exploring 5G?
Innovation is a continuous journey with overlapping development cycles. Huawei began working on 5G in 2009, the same year the first commercial 4G network went live in the Nordics. Developing next-generation technologies like 5G is a complex task. They require agreed engineering standards to be reached across the global industry so that the various elements of the 5G network – from base stations and handsets and core network equipment – can work seamlessly together to agreed standards, regardless of the company or country where the components are developed or used.
Huawei is currently engaged in detailed discussions with customers, partners, competitors and policymakers to ensure that clear and shared agreement for the development of 5G are reached that we can all work towards. This will take some time, debate and discussion.
What are the driving forces behind its development?
The key driving force behind the development of 5G services is customer demand and the rise of what is known as big data, Customers want faster and faster connections that allow them to do more things online, faster. We live in an era of big data where people create and access huge data volumes online. In this world, 4G provides a step-change improvement over what 3G can deliver. 5G will provide a further step-change when it becomes available commercially from 2020.
Up until now, mobile networks have mostly connected people with networks. Increasingly, 4G and 5G will also connect billions or even trillions of ‘things’ worldwide, from domestic automation systems and home appliances to vehicles on the road and trains on the railways. This is often referred to as the ‘Internet of Things’.
What exactly will 5G networks involve, how will they work and what kind of speeds of data transmission will they enable?
5G networks will still include the type of base station technology that connects devices to the mobile network and customers to the internet but the technology in the network will be able to transmit data much faster over a different type of network architecture. 5G networks will rely heavily on an architecture based on cloud computing, where the power of supercomputers and virtualisation in the network will unleash the power of software-defined network technology and enable a much faster and more open innovation for a vast range of new service and applications. 5G networks will not only connect everything but will exploit big data technology to bring our work and life into a new wave of digital society.
4G networks today are capable of delivering data speeds of up to 100Mbps. 5G, we believe, will be capable of data speeds of 10Gbps, 100 times faster than today’s fastest 4G networks. A network running at 10Gbps is capable of downloading a high definition movie in one second and of providing a true-to-life 3D teleconferencing.
But 5G networks will be about more than speed. They will also be designed to provide customers and things with the most reliable connections and will achieve this while consuming lower levels of energy.
What barriers are there to the development of 5G?
There remain many barriers to 5G. Most are technological, such as how to engineer network technology and architectures capable of handling much higher data volumes and transmission speeds with many more users on the network. By 2020, many technical breakthroughs have to happen to make this a reality.
Another key barrier is in the public policy space, which is how to make available the spectrum and the airwaves over which mobile data travels – which are licensed to carriers by governments around the world – and how to make that spectrum more efficient.
What work is Huawei doing in this area?
Today, around 200 Huawei engineers are focused full time on 5G development looking at all aspects from hardware and software development to spectrum and wireless radio architectures, new air interface designs, new modems and next-generation multi-antenna technologies.
As a founding member, Huawei has established a 5G innovation centre in the UK to conduct 5G tests. We are also engaged in 5G development programmes in China and with the European Commission.
When do you think 5G might feasibly be up and running on devices?
We expect the first commercial 5G networks will become available by 2020 and that 5G will reach its market peak between 2030 and 2040. In terms of handsets, 5G users will need to replace their handsets and use 5G-enabled handsets to access 5G services
How will 5G change the world we live in, what kind of communications innovation will it enable, and will it help work towards the vision of ‘smart cities’?
The 5G future will be defined by a new systematic intelligence: human and machine intelligence integrated around big data analytics. For example, this will mean real-time data that details and supports the movement of people, cargo, vehicles and routes integrated with intelligent ICT systems to make intelligent transportation, intelligent supply chains and self-driving vehicles a reality.
Similarly, the real-time translation will leverage the power of language and culture to enable machines to understand the human thought process and break through the barriers of language. It could mean teachers will be able to teach a class of a million children online at the same time rather than 20 in a classroom.
5G will underpin smart cities, smart transport and a smart society.
It's not long now until you have to get yourself into more debt than you can afford, secured by a job in the most precarious economy, like, ever. So Merry Christmas. To help you out (in no way what so ever) we have picked 5 things that we have disguised as things that...
If you’re looking for work during Covid, 1 do a cover letter and 2 follow these killer tips based on expert research
A study by Top Ladder has found that recruiters care less about employment gaps, and now pay more attention to cover letters and how you are following up that cover letter than they did pre COVID. With that being said, what should you absolutely be doing if you have...
COVID has shaken up the footballing world as well as many other sporting events around the world. But the impact on the game could have a much longer term impact and may change the way teams deal with the future of this crisis. Clubs will need to think of...
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The widely used RG-6 coax has a characteristic impedance of 75 ohms, which requires the use of a balun to match impedance when used with common antenna types.Twin lead also has significantly lower signal losses than coax under most conditions; RG-58 coax loses 6.6 d B per 100 m at 1 GHz, while 300 ohm twin-lead loses only 0.55 d B.
Twin-lead is also susceptible to significant degradation when wet or ice covered, whereas coax is less or not affected in these conditions.
For these reasons, coax has largely replaced twin-lead in most uses, except where maximum signal is required.
Twin lead and other types of parallel-conductor transmission line are mainly used to connect radio transmitters and receivers to their antennas.
Please help by moving some material from it into the body of the article.
Please read the layout guide and lead section guidelines to ensure the section will still be inclusive of all essential details.
Please discuss this issue on the article's talk page.
Twin-lead cable is a two-conductor flat cable used as a transmission line to carry radio frequency (RF) signals.
It is constructed of two multistranded copper or copperclad steel wires, held a precise distance apart by a plastic (usually polyethylene) ribbon.
The uniform spacing of the wires is the key to the cable's function as a parallel transmission line; any abrupt changes in spacing would reflect some of the signal back toward the source. The characteristic impedance of twin-lead is a function of the wire diameter and its spacing; in 300 ohm twin-lead, the most common type, the wire is usually 20 or 22 gauge, about 7.5 mm (0.30 inches) apart.
This is well matched with the natural impedance of a folded dipole antenna, which is normally around 275 ohms.
Twin-lead generally has higher impedance than the other common transmission wiring, coaxial cable (coax).


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Viewer access satellite television (VAST) is an Australian Government funded Free to Air satellite service for people living in remote areas or unable to receive digital TV through their normal antenna because of issues relating to local interference, terrain or distance from the transmitter in their area.
HD Creations can provide a VAST certified satellite set-top box and a satellite dish of at least 65cm diameter. Access to this satellite service is managed by a smart card which is supplied with the satellite set top box. To access VAST you will need to register your details including your address, reception location and smart card number to enable access. HD Creations can assist in this process.
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In a significant milestone for the world of Augmentative and Alternative Communication (AAC), CBoard, the acclaimed AAC application software, has just expanded its reach by launching its long-awaited app for iOS devices. This announcement is a game-changer for individuals with communication difficulties, as it brings the power of CBoard to iPhone and iPad users, making communication more accessible and inclusive than ever before.
What is CBoard?
CBoard is an innovative AAC app designed to assist individuals with speech and language challenges in expressing themselves effectively. Developed with a deep understanding of the needs of users, CBoard empowers those with communication difficulties by providing a customizable platform to communicate with text and symbols. With its user-friendly interface and robust features, CBoard is a powerful tool that can benefit people of all ages and abilities.
Cboard on iPad
CBoard on iOS: A Game-Changer
The launch of the CBoard AAC app on iOS devices, specifically for iPhone and iPad, marks a significant advancement in the field of AAC. Here are some of the key features and benefits that make this release noteworthy:
Accessibility for iOS Users: Until now, CBoard was primarily accessible to Android users, but the iOS launch now opens the door for millions of iPhone and iPad users to utilize this invaluable communication tool.
User-Friendly Interface: The iOS version of CBoard retains the user-friendly interface that has made it so popular on Android. It ensures that individuals with varying degrees of technical proficiency can easily use the app to communicate effectively.
Customization Options: CBoard allows users to customize their communication boards to suit their specific needs. With the iOS release, users can personalize their boards with symbols, pictures, or text, making communication more relevant and meaningful.
Natural Communication: CBoard enables users to communicate naturally by offering features like word prediction and speech synthesis. This helps users express themselves more fluently and confidently.
Multilingual Support: The app supports multiple languages, catering to users from diverse linguistic backgrounds. This feature ensures that individuals around the world can benefit from CBoard’s capabilities.
Offline Accessibility: CBoard offers offline access, allowing users to communicate even in areas with limited or no internet connectivity. This feature is crucial for users who may rely on AAC in various environments.
Availability on the Apple Store
The CBoard AAC app for iOS is now available on the Apple Store, making it easily accessible to anyone with an iPhone or iPad. The app can be downloaded for free, providing users with an essential communication tool that can significantly enhance their quality of life.
The launch of the CBoard AAC app on iOS devices is a monumental step forward in making communication more inclusive and accessible for individuals with speech and language difficulties. With its user-friendly interface, customization options, and multilingual support, CBoard empowers users to communicate naturally and effectively.
By bringing CBoard to the iOS platform, the developers have opened up new possibilities for individuals who rely on AAC to express themselves. The app’s availability on the Apple Store ensures that it is within easy reach of millions of iPhone and iPad users, making it a game-changer in the world of Augmentative and Alternative Communication.
As we celebrate this milestone, it’s important to remember that technology like CBoard has the potential to transform lives, enabling individuals to connect, share their thoughts, and participate more fully in their communities. With CBoard now on iOS, the future of communication is brighter and more inclusive than ever before.


ALERT successfully participated in the 2nd epSOS Projectathon, which took place in Pisa, Italy, on April 11-15.
This was ALERT's first participation in the epSOS project.
epSOS is a European project that aims at building and evaluating a service infrastructure to demonstrate the interoperability between electronic health record systems across national borders in Europe.
During the epSOS Projectathon event the project's participants perform exhaustive testing to their solutions and demonstrate their information exchange capacity between different systems. All tests are validated by a group of supervisors to ensure the systems' compliance with technical specifications.


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PBXact is based on the world’s most popular open source PBX platform, FreePBX. We bundle in advanced functionality and tightly integrate this functionality across phones, web based user control panels and operator panels. PBXact provides one of the easiest systems for users to get started using, with little or no training.
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Voice over Internet Protocol, commonly referred to as VoIP, is quickly becoming the go-to standard for communication. With businesses of all sizes adopting VoIP for their communication needs, it is important to understand how it works and how to get started. In this post, we will explore everything you need to learn about VoIP.
What Is VoIP?
VoIP is a communication technology that allows individuals to interact online using voice rather than text. VoIP is growing in popularity because it has many benefits for both businesses and individuals. For businesses, VoIP can be used to replace traditional phone systems, saving on costs and improving communication quality. Additionally, VoIP can be used to create video conferences between multiple participants without having to use a separate video system.
For individuals, VoIP can be a more affordable and convenient way to communicate. Instead of paying per minute for phone calls, people with VoIP accounts pay based on how much data they use. This means that VoIP calls are typically cheaper than regular phone calls. Additionally, VoIP allows people to make calls from anywhere in the world without worrying about international charges or long wait times.
How to Get Started with VoIP?
VoIP is a rapidly growing technology that is revolutionizing how people communicate. Setting up and using VoIP systems can be easy if you take the time to do them correctly. Make sure to read through the provider’s setup guide carefully before beginning your call journey; this will help ensure that your call goes smoothly and that you aren’t experiencing any unforeseen issues along the way. Different types of VoIP systems exist, so it’s important to select the right one for your needs if you want high-quality call quality and reliability.
While using VoIP services always carries some level of risk, there are several precautions you can take to minimize this risk as much as possible. For example, always use a secure connection when making or receiving VoIP calls—this includes using HTTPS when connecting to your provider’s website and encrypting all traffic when connecting through a VPN (a virtual private network). Additionally, keep an eye out for scams targeting people using VoIP services and immediately report any suspicious activity. Finally, never give away personal information such as your bank account number or social security number during a telephone conversation; these details should only be shared over secure channels such as email or text messages.
VoIP is a powerful and affordable technology that can help businesses of all sizes save money and increase efficiency. It offers many benefits, including low costs, flexibility, portability, scalability, and high-quality audio. To get started with VoIP, it is important to research the different providers available to find one that meets your needs. Make sure you look for a provider that offers reliable service with clear call quality and features such as multimedia support and strong customer support. Now is the time to take advantage of the benefits offered by VoIP technology; why not start exploring which provider is right for you today?
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Icom IC-7800 Transceiver For Sale
The Icom IC-7800 is a high end ham radio, arguably the best
of the best! Below are sources/links of both current new and used models for sale. This large
sized transceiver is not for the faint hearted, this one is a heavy monster and will take up a good chunk
of desk space, but the level of performance obtained is well worth it!
Click here to View Current Icom Ham Radios For
Sets a new standard of performance!
Just a few of the new standards set for by model include:
4 x "Ultra" fast 32 bit DSP Processors!
By having four independent digital signal processing units, the IC7800 responds to operating
changes in an instant, as each DSP unit has a dedicated function. While there is one for each receiver, this
includes the AGC and Filter controls, there is a chip dedicated for transmit as well as a DSP unit for the
+40dBm 3rd order intercept point!
(3rd order Intercept Point) provides a considerable amount analog circuit performance combined with
cutting-edge digital technology results in an astonishing 110dB receiver dynamic range and a +40dBm IP3 in the HF
Lower internal phase noise!
The IC-7800 uses double conversion based on a DMOS FET 1st mixer and a newly developed image rejection mixer for
the 2nd stage. The 1st mixer stage is driven with a signal from the high-drive Local Oscillator with excellent C/N.
The image rejection mixer for the 2nd stage reduces signal distortion through IF processing and provides a
high-fidelity signal to the DSP unit.
Click here to View Current Icom Ham Radios For Sale


Binghamton Native Works to Bring Faster Internet Service to City
A company founded by a Seton Catholic Central High School graduate is working to expand its broadband internet service in the Binghamton area.
Mark Murphy, who was born and raised in the city, founded Greenlight Networks more than a decade ago.
In recent months, Greenlight crews have been installing high-speed fiber optics as the company expands its footprint.
Murphy said Greenlight representatives have had a presence at local events to make residents aware of the service.
In an interview with WNBF News, Murphy said the company was founded in 2011. Over the last few years, Greenlight Networks has grown to serve the Rochester and Buffalo regions.
Greenlight acquired Binghamton-based Plexicomm in June 2021, giving the company a presence in the Southern Tier. Greenlight also is rolling out high-speed broadband service in Clifton Park in the Albany area.
Murphy said the company has grown significantly. He said Greenlight now has about 200 employees.
At this point, broadband service from Greenlight Networks is available in parts of Binghamton, Johnson City and Vestal. Additional expansion is planned for Endwell and other sections of the town of Union.
Murphy said the company will continue adding coverage to the region over the next several years.
Information about Greenlight Networks service can be found at greenlightnetworks.com.
LOOK: Here are the best lake towns to live in
50 Famous Brands That No Longer Exist
CHECK IT OUT: How To Unlock Your iPhone With Your Voice


Our company Ridgewood Cable now Net3 ISP has been a well-established business since 1978. We are a locally owned and operated rural internet service provider. Net 3 is dedicated to researching and investing in the latest point to multi point technology to improve speeds and consistency. Net3 ISP has seen many changes and experienced a lot of challenges. Improvements with upgrades continue to be our top priority to meet our customers' needs. We recognize that every interaction we have with our customers is an opportunity to make a positive impact.
We value you and want you to value us.


The iPads are similarly affected, but that's usually written off to them being tablets with obviously inferior wireless equipment. Why obviously? Well, because it is bad, of course!
The real, real culprit is probably this:
|Well there's your problem|
(Actually, looking at that makes me wonder if I can solve a bunch of my problems by shifting to channel 11, since there are fewer coincident networks there...)
So yesterday I spent a bunch of time drilling holes in walls and floors and I ran a wire from the basement into the Apple TV. And wouldn't you know it, all of our problems with streaming are gone. Looking at the activity graphs on the computer upstairs, it looks like it can now stream data at 40Mb/s whereas over the WiFi it would plod along at 1Mb/s. Huge difference.
I also discovered that my laptop can do a speedtest.net and show a 15/3 connection over the wireless. Connected to the wire? 50/3.
It has a bit of the boiling frog problem. When I started with this WiFi in the home thing eight years ago or so, I had a router in my basement. The theory was that it would project the WiFi signal more or less straight up, and the concrete foundation would "hide" the signal from the rest of the neighbourhood, and to a certain extent hide the rest of the neighbourhood from my router. It was all kind of academic, since I remember that I could see exactly one other wireless network from my laptop, and that weakly at best.
Now here we are, I have changed WiFi routers three or four times -- each time when the signal reception was getting unusable, I just assumed the router was dead or worn out and got another one. The router has also been moved around the house -- from the basement, to the second floor office, to the shelf in the front room (a location I picked because it was the only network jack on the main floor). The router's current location is less than 10m from the Apple TV with no significant obstruction between the two devices (one empty desk and the side of the entertainment unit -- no walls) and the throughput is still crap. The iPads can barely surf the web from the couch in the living room.
I've even contemplated a wireless mesh network for the house -- multiple radios on each floor. And frankly that seems just overkill ridiculous to me. I'll be blasting out so much signal that my neighbors won't have any choice but to respond in kind. And we'll be right back to where we started, except with more money spent.
5Ghz doesn't look like a solution because it doesn't work even half as well as 2.4GHz -- and given the choice, most devices will chose the 2.4Ghz connection anyways. And looking at the InSSIDer screen above, it appears my neighbors have come to the same conclusion, as there's practically no 5Ghz networks in use. Possibly the prevalence of 5Ghz cordless phones is what is killing 5Ghz WiFi. I know we have 5Ghz phones.
I'd have to do the mesh solution to make 5Ghz work because it demonstrably doesn't work between floors.
All this makes me wonder if for the average person, WiFi might have peaked. So many people have so many access points and devices that the spectrum is so congested. People tolerate it because their tablets or phones are mobile devices, and therefore inferior (see my logic above) or because their laptops are running Windows and therefore obviously slow.
Or because their internet is slow. (But that's a separate blog post.)
Overall the experience is so much worse than it could be. Eventually people will stop putting up with it. I wonder if my return to the wire is the beginning of the end of the WiFi wave in the same way that my router was the beginning of the same wave.
As for my network, I'll probably move the router next to the Apple TV -- not for wireless streaming, since the wire is superior in every way -- but so that the iPads work better in the area where they primarily get used. I'll try the channel change I speculated on above. And I'll look into another router for the office upstairs. We'll just have to see how it goes.


MC303 300 Watts 3-Channels Power Amplifier
At 300 watts per channel the new McIntosh MC303 Three Channel Power Amplifier with Autoformers delivers its maximum rated output power into 2, 4, or 8 ohm loads for the lowest noise and distortion performance possible. Premium cosmetics featuring a Â½” thick glass faceplate, custom machined and anodized aluminum handles, and a mirror polished stainless steel chassis are standard equipment on the MC303. Power Guard, a McIntosh circuit innovation, maximizes sound quality at high power levels while our Sentry Monitor feature provides continuous short circuit protection of the amplifier and connected loudspeakers. A triple bank of Peak Reading Watt Meters provides instant recognition of power output and may be switched off for theater use.
Output Load Impedance: 2, 4 or 8 ohms
Rated Power Band:20Hz to 20,000Hz
Total Harmonic Distortion
Dynamic Headroom: 1.8dB
Input Sensitivity (for rated output):
Signal To Noise Ratio (A-Weighted): 112dB below rated output
Wide Band Damping Factor: Greater than 40
Input Impedance: 10,000 ohms
Power Guard: Less than 2% THD with up to 14dB overdrive at 1,000Hz
Power Control Input: 5VDC - 12VDC
Power Control Output: 12VDC, 25mA maximum, delay 0.2 seconds
Note: Refer to the rear panel of the MC303 for the correct voltage.


Apple may completely abandon the LCD screen next year and completely switch to OLED for two reasons. First of all, although there are still problems such as shorter life span and burn-in, OLED is still more advantageous than LCD in terms of technology. As the flagship of the mobile phone industry, Apple has no reason to stick to the slightly outdated LCD screen.
Another important reason is that China has already achieved mass production of OLED screens , which means that the supply of OLEDs will be greatly improved compared with the past, and the cost will also decline. At the same time, with the increase of suppliers, Apple will have more bargaining power, which will promote the rapid popularization of OLED on Apple phones.
Shenzhen Tuowei Xingye Technology Co., Ltd. is a comprehensive manufacturer specializing in the customization, production and sales of OLED display for 13 years . It operates wholesale OLED module, color OLED LCD screen, monochrome OLED, flexible OLED screen, industrial LCD screen, etc. , OEM / ODM customized services. Hotline: 0755-83849760.


Wataniya Telecom now offering 10 gb data at 21.6 Mbps for KD 15 Net on Phone plans
Wataniya Telecom has revamped its net on phone plans and is offering 10Gb download at blazing 21.6 Mbps for KD 15.
The original KD 11 plan is now also boosted to 4Gb at 21.6 Mbps
This is great news for heavy users especially those with 3G tablet users.
Check the full pricing below
Visit Wataniya website for more info at http://wataniya.com


At 11 a.m. Saturday, the London Bridge Amateur Radio Association’s marked the beginning of preparations for participation in a 24-hour Field Day. Members of the club took turns in the club’s 23-foot trailer set up as a command post at Havasu Fire Station No. 2 on Kiowa Boulevard to communicate with other ham operators throughout the U.S. and Canada. The Field Day is sponsored by the national organization, the American Radio Relay League (ARRL), the largest membership association of amateur radio enthusiasts in the U.S.
Havasu’s LBARA is a member of the Amateur Radio Emergency Service® (ARES), which consists of licensed amateurs who have voluntarily registered their qualifications and equipment, with their local ARES leadership, for communications duty in the public service when disaster strikes.
Field Days take place so that amateur radio operators can work as many stations as possible on any and all amateur bands (excluding the 60, 30, 17, and 12- meter bands), and in doing so learn to operate in abnormal situations in less than optimal conditions.
Although this Field Day involved communicating just within the U.S. and Canada, Tom Hutter, Vice President of LBARA, said other Field Days involve testing communications around the world. The Field Days are a means of testing ham operators’ equipment for their effectiveness in communicating with other nearby areas. This is important for maintaining their capability to step in and provide emergency services when other communication methods fail in disasters.
“If an area is ever hit with a ‘dirty bomb’ that is capable of wiping out all normal communications,” Hutter explained, “ amateur radio operators are able to step in and set up emergency communications. So we have to constantly test our systems.
“When Katrina hit,” said Hutter, “ham operators under ARES were some of the first to arrive on the scene to start emergency broadcasting. Often in emergencies,” he continued, “cell phones and 911 systems get overloaded and fail, and that’s where we can help.”
The LBARA has a partnership with the Havasu Fire Department, and also has an agreement with Lake Havasu Police Department to share equipment in cases of emergency. The Havasu and Kingman radio clubs have worked together to build a system to enable them to talk among three cities and surrounding areas, including Blythe. They have a 5,700-foot antenna and a repeater on Spirit Mountain Peak. They also have an agreement with San Bernardino County in California to share its systems.
“Today’s event is focused on seeing how many other HAM operators in the U.S. and Canada we are able to communicate with,” Hutter explained, “to prove our effectiveness in communicating in the event of a national disaster. The event ends at 1:59 p.m. Sunday.”
Hutter invited citizens to visit the communications trailer before the event ends Sunday. Visiting Saturday were Mayor Mark Nexsen and State Rep. Sonny Borrelli.
“Sonny and the mayor are big supporters,”Hutter said. “We gave them a demonstration today on the system.”
“We all have good intentions and want to be able to help other operators in any way we can,” Hutter said of the local club. “We’re just average citizens.”
Hutter is a retired firefighter, with 32 years on the Havasu fire department and 12 years in New York before that. He retired on Dec. 30, 2010. He is modest about what ham operators do. “We’re another tool in the belt to help restore normal communications in the case of emergency. We are entirely funded by ham operators and do not receive any government funding.”
In addition to the Field Days, Hutter said all Ham operators in Arizona verify their communications systems every Sunday morning.
“It’s a quick thing,” he said. “We just establish who we reached and where they are, hang up, and try to reach someone else.”
Hutter estimates there are as many as 350 ham operators in Lake Havasu, and he invites them to join their club. LBARA, with about 60 members, meets at 7 p.m. on the third Thursday of every month except for June, July and August. The club’s FCC call letters are K7LHC. They meet at the Lake Havasu Yacht Club at 631 London Bridge Road. LBARA president is Jerry France. Their website is www.lbara.org.


Posted on Tuesday, October 3rd, 2023 at 8:50 pm
Everyone knows about “Black Boxes” on airplanes and most people realize that commercial trucks have similar technology onboard as well.
Trucking telematics uses technology to track and control trucks. It helps truck drivers and trucking companies know where the trucks are, how fast they’re going, and if everything is working properly. It’s like having eyes and ears on the truck all the time, even when it’s far away on the road. Telematics are often literally “eyes” on the truck because they can show the trucks’ owners what the driver is doing in real time both inside the cab and outside around the truck.
Trucking telematics can also help with things like making sure the truck is using fuel efficiently, checking if the driver is driving safely, and even telling the truck when it’s time for maintenance. If a truck crash occurs, the telematics can reveal what the driver was doing at the time of crash and how the vehicle was being handled. So, in simple words, it’s like a smart system that helps trucks and their drivers do their jobs better and more safely.


LCD GM328A Black Transistor Tester Diode Capacitance ESR Voltage Frequency Meter PWM Square Wave Signal Generator SMT Soldering
- 100% brand new and high quality!
- It is Assembled,The use of SCM ATMEAG328P DIP-28.
- With IC Block,The display unit using a 160×128 pixel color display, full-screen characters 8×20, 16-bit color depth, graphic display element symbols.
- Rotary switch control, a key measurement, automatic shutdown.
- Use 9V laminated battery, can also use the power adapter(DC 6.8-12V), the whole current of about 30mA, after about 20nA shutdown current.
- Automatically detects NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout.
- Display: 160*128 LCD
- Power Supply: 1 * 9V Battery(not included); DC 6.8-12V
- Current: Approx. 30mA
- Resistance Measurement: Max. 50M?
- Resistance Resolution: 0.01?
- Capacitance Measurement: 25pF~100mF
- Capacitance Resolution: 1pF
- DC Voltage Measurement: Up to 50V
- Screen Size: 3.7 * 3cm / 1.45 * 1.18in
- PCB Size: 7.8 * 6.2cm / 3.1 * 2.44in
- Product Weight: 66g / 2.3oz.
- Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter.
- 1 x GM328A Transistor Tester
NO Retail Box. Packed Safely in Bubble Bag.


Budapest has become the first airport in European capitals to have its air traffic controlled from a high-tech facility outside the airport grounds, thanks to a new contract Indra’s with the service provider Hungarian Air Navigation HungaroControl.
This new Indra solution called InNOVA will provide air traffic controllers with an even better view than that generally obtained from a conventional control tower. In addition, they will have all the necessary information, air traffic control functionalities, and security functions from a single integrated screen, a concept already operational in remote control centers.
“Intelligent technology and automation are tools to support human decision-making. By equipping our air traffic controllers with the latest technology, we improve operational efficiency and situational awareness. This benefits us, the airport, the airlines, and ultimately the passengers”, said Kornel Szepessy, CEO of HungaroControl.
While air traffic controllers typically must monitor different screens to get a complete view, the tower InNOVA system takes care of integrating all relevant functions and information on a single screen.
This system will improve controllers’ situational awareness, effectiveness, and flight safety. Thanks to augmented reality that will allow controllers to automatically zoom, identify and track moving objects.
The system is prepared to carry out operations in multiple airports. For now, the cameras will be located in various locations around the Budapest airport to improve visual observation of this and other areas of interest to controllers.
Read the full note in Aviación al día.


Budi Home Charger Qualcomm 3.0 Quick Charge
- Compatible with any Android & IOS Phones.
- Charge any USB-enabled device in your home.
- Charge your device rapidly & safely.
- Support 5V / 9V / 12V
- Built-in Protective system is to effectively prevent overvoltage & overcharge and short circuit securely.
- Protocol Standard Charger of Qualcomm 3.0 Quick Charge
- Colour: White
Home Charger Qualcomm 3.0
Warranty Period: 6 Months
Warranty type: supplier


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Laser Marking Machine
Email： [email protected]
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The application of cnc fiber laser marking machine in mobile phone manufacture iThe application of cnc fiber laser marking machine in mobile phone manufacture industry
Why the processing of mobile phone needs laser processing technology? Mobile phone processing is the crystallization of a precision manufacturing technology. It needs a good precision processing and manufacturing equipment. However, the cnc laser marking machine has many outstanding characteristics, such as high power density, high precision, cleanliness, high efficiency and environmental protection.
What are the application characteristics of cnc fiber laser marking machine for mobile phone?
The best fiber laser marking machine is an important tool for mobile phones. It is especially for marking small mobile phone parts. Laser marking cnc machine in mobile phone industry can be used for PCB board marking, cell phone shell and text punching, earphone and connection data line marking. It has many advantages, such as high efficiency, low cost, small deformation and wide application scope.
The tendency of laser processing to replace traditional processing technology is becoming more and more fast. So if you are interested in our mobile phone laser marking machine, or have any question about the cnc laser marking machine for mobile phone. Please contact Jinan Dekcel Cnc Equipment Company. We are support service 24 hours online.
Thanks for your time.


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UART AFSK radio receiver
11 Jul 2016
Recently, while experimenting with an RTL-SDR device, I spotted a particularly strong intermittent signal on 456.89 MHz. The signal appears in bursts lasting a few seconds several times per minute.
After a bit of hunting on the radio spectrum management database, I deduced that this was coming from a transmitter on top of a nearby water tower. Following an OIA request to the Dunedin City Council, who owns the equipment, I was given some helpful information by Malcolm Wallace at Communication Specialists, and I decided to attempt to implement a software demodulator to read the transmitted data in realtime.
Looking at the waterfall diagram of a captured signal in baudline, we can deduce the modulation scheme. The symmetrical sidebands, of a lower amplitude than the main carrier, indicate an AM signal. Within the AM signal, there appears to be a FSK signal carrying UART data (see the abrupt sideband shifts towards the bottom of the diagram). There are additional spikes ("shadows") in the spectrum due to tone-generator distortion.
The FSK signal in this particular capture uses mark and space frequencies of around 2 kHz, with about 200 Hz of separation. The baud rate is 300 bps, with 8 bits per word, 1 stop bit and even parity. This data comprises packets transmitted between devices on a local SCADA network.
The software is arranged into separable stages. Each stage takes arbitrary-sized chunks of input data, buffers and processes them and produces new chunks of data for the next stage.
The data at various stages includes complex (I/Q) samples, real samples and digital (binary state) samples. Some stages emit hybrid data consisting of a combination of a complex or real signal and a set of digital signals encoded in a bitmask.
The data processing chain consists of the following stages:
- Sample parsing
The parser stage receives blocks of binary data (
const uint8_t *) from stdin. This data is expected to be RTL-SDR format (8 bit unsigned I/Q samples). The output from this stage is complex I/Q samples.
- Down-mixing and decimation
We're only interested in activity within a relatively narrow band. This stage first mixes the data to center on the nominal carrier frequency. It then applies an FIR lowpass filter to cut out all signals outside of the band of interest, and then decimates the signal by a large ratio. Typically, we're decimating from 2048 ksps to about 20 ksps.
This is the most computationally expensive step in the processing chain. Note that because of the large decimation ratio, a lot of processing time can be saved by only calculating the convolution at points centered around samples that are actually going to make it through the filter. This technique, applied generally, results in decimating filters whose runtime does not increase with decimation ratio -- a higher ratio simply means a wider kernel applied at proportionally fewer points.
In order to apply an FIR filter, we need to keep some context either side of the buffer block we're currently processing. We process the middle of the buffer, and then slide some of the data from the end back down to the start of the buffer to use as context and the beginning of the next block.
The output from this stage is complex I/Q samples, but at a vastly reduced rate.
- Carrier detection and tracking
The RF oscillator in the transmitter might have an accuracy of 10 ppm. At 456.89 MHz, this translates to a possible error in the carrier frequency of up to 4 kHz -- twice the tone frequency and many times the tone separation!
This stage collects blocks of data corresponding to roughly 1/10th of a second. Over each block, we estimate the average frequency by averaging the arctangent of ratios of successive samples. Provided that the carrier is significantly stronger than the background noise and not over-modulated, this gives us a fairly good estimate of the carrier frequency.
We use frequency stability and amplitude estimates to decide when a carrier is present. We also use the frequency estimates to mix the signal again so that the carrier appears at a fixed offset (about -2 kHz).
The output from this stage is complex I/Q samples, plus a binary carrier detect signal.
- AM demodulation
A popular textbook method of AM demodulation is envelope detection. However, this performs very poorly in the presence of noise.
Fortunately, due to the behaviour of our previous stage, we now have the signal shifted to a fixed offset, effectively eliminating carrier frequency error. If we ensure that this offset results in the signal being centered with 0 Hz in the middle of one of the side-bands, then we can demodulate just by applying an FIR lowpass filter.
The cut-off for the filter should be chosen to be less than the distance from 0 Hz to the carrier. Then we cut out the carrier and lower side-band, leaving an AM-demodulated complex signal.
The output from this stage is complex I/Q samples, plus the binary carrier detect signal forwarded from the previous stage.
- FM demodulation
FM demodulation is accomplished by a simple operation: we estimate the instantaneous frequency at each sample by dividing the sample following by the sample preceeding, and calculating the arctangent of this ratio.
The output from this stage is real samples, plus the binary carrier detect signal forwarded from the previous stage.
- Noise reduction
The sample rate at this point is many times in excess of the rate at which we expect tone frequency changes. We can take advantage of this for noise reduction by applying a simple FIR lowpass filter on the real samples.
The output from this stage is real samples (see the scope trace below), plus the binary carrier detect signal forwarded from the previous stage.
The purpose of this stage is to convert the real-valued output from the FM signal to a realtime binary-valued signal. We do this in a way that doesn't require specification ahead of time of fixed tone frequencies (although we do require a minimum separation).
The incoming real-valued signal is buffered into slices of a fixed size -- roughly 20 bit-times. We expect that we will see both the high and the low level over this time period. For each time period, we assemble a histogram of the values present in the period, its predecessor, and its successor. We then pick out the two largest peaks from the histogram and use them to set Schmitt-trigger levels for the period under examination.
The output from this stage is the binary carrier detect signal, plus a binary data signal. There is no further need for the analog samples.
- UART decoding
This stage consists of a bunch of state machines. The data signal is fed through a debouncer for glitch removal and then into an ordinary UART sampling state machine. The carrier detect signal is fed through a transition-detecting state machine.
This stage does not emit data in blocks. Rather, it invokes a callback for three kinds of events: carrier detect, carrier loss, and UART word received.
The callback invoked by the last stage prints events on stdout. For example, feeding the captured trace shown in the waterfall above, with appropriate settings, results in the following output:
CONNECT > ff -1111111111 > ff -1111111111 > ff -1111111111 > ff -1111111111 > 00 ---------11 > 0d -1-11-----1 > 00 ---------11 > 23 -11---1---1 > 43 -11----1--1 > 60 ------11-11 > 0b -11-1-----1 > 00 ---------11 > 00 ---------11 > 00 ---------11 > 02 --1-------1 > 00 ---------11 > 5d -1-111-1--1 > 48 ----1--1-11 > 00 ---------11 NO CARRIER
You can download the source code here:
Compile the program with a version of GCC that supports C++11 (the version bundled with any relatively recent Linux distribution should suffice):
g++ -O1 -Wall -std=c++11 -o rtlafsk rtlafsk.cpp
You can get help with:
A typical use is to pipe in data from the RTL-SDR program like so:
rtl_sdr -g 30 -f 456972300 | ./rtlafsk --carrier-frequency -82750
On a modestly powerful laptop, this should run fast enough to process 2048 ksps data in realtime with less than 15% CPU load.
You will likely need to adjust the default settings for your scenario. Do not use the RTL-SDR's automatic gain control, as this will interfere with carrier detection. Instead, specify a fixed gain (e.g. 30 dB, as shown above).


Since beta4 the EQ10Q version 2 includes a new major feature: the peaking filter have a very accurate response at high frequencies. The following figure shows the comparation between frequency response of an analog peaking filter, a classic digital implementation and the new implementation of EQ10Q. The green curve corresponds to the ideal analog peaking filter, the red one is the classical digital implementation and the blue plot is the new response of peaking filter included in EQ10Q.
Because of the bilinear transform tipically used in digital filter design from analog specification, the response of the classical peaking (red) is distorted near the Nyquist frequency. The peaking filter of EQ10Q solves this issue with a specific filter method providing the compensated response (blue).


M4RGBW + DMX
LuxR is proud to be able to now offer our highly successful M4 range of luminaires with integrated Red, Green, Blue, White colour changing LED.
This system uses DMX signal protocol and DMX-spec cabling.
The topology employed to connect the LuxR RGBW fittings together is a bussed (a kind of parallel arangement) network. Technical notes on bussed networks can be found here:
DMX is very fussy about cabling quality. Users should specify their required cable lengths for each luminaire ordered.
- Input: 12-24V DC , DMX Data+ , Data- , Data shield
- Power consumption: 4.5W per luminaire maximum (4 colours @ 100%)
- Light Engine: Plugin dimmable module equipped with a high power Cree 4x1 watt RGBW LED
- Beam [FWHM]: Spot 20°, Medium 34°, Oval 48°x24°
- Cabling: Special hybrid cable comprising of : EIA-485 (aka RS-485) compliant 120 Ohm twisted pair with drain wire in a foil shield. A pair of marine grade tinned 0.75mm^2 DC power conductors. The product is supplied with a 3 metre (9.8 ft) cable.
- Standards: IP68, LM79, CE , USITT DMX512-A


[FREE SHIPPING] 48V Phantom Power Supply with Power Adapter for Condenser Microphone
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1. Deliver reliable 48V phantom power for condenser microphones and transfer audio signal to computer sound card or relevant audio device.
2. Ultra low-noise audio performance and full-frequency response.
3. Made of high quality aluminium metal material and adopting surface anodic oxidation treatment, the product is sturdy, durable.
4. Stable filter circuit design to filter out AC signal interference and shield external audio device interference.
5.Suitable for personal recording, professional recording studio, radio stations, live programs, classrooms, lectures, conference rooms and so on.


This module covers the fundamental tools for digital signal processing. In particular it addresses topics of signal analysis and filtering concerning audio and image data both from the deterministic and the statistical viewpoint.
Participants will learn basic tools for digital signal filtering and analysis. In particular the program will be articulated in the following parts:
Fundamentals of digital signal processing
From Analog to Digital, from Continuous to Discrete:
Sampling and quantization, The Fourier Series (FS), the Fourier Transform (FT), the Fourier Discrete Time (DTFT) Fourier processing.
Its link to the DTFT and DFT, poles-zeros plots, ad-hoc filter design
Introduction to the DFT:
DFT, IDFT, derivation of the DFT, Fourier theorems for the DFT
Introduction to digital filters:
Time-domain representations, transfer function analysis, frequency response analysis
Windowing and STFT:
Overview of windows, overlap and add, STFT
Digital filter design techniques:
Filter specifications, IIR filter design, FIR filter design
Introduction to multirate processing:
Downsamplig, upsampling, decimation, interpolation, polyphase filters, perfect reconstruction filter banks.
Laboratory activities enable student to improve their understanding of the concepts learnt during the lectures. The proposed examples of applications and exercises, cover audio, image and video processing, and are based on Matlab®


Born Apr 29 1926 - Died Mar 26 2011
Packetized Ensemble Modem
Patent #: 4,438,511
Paul Baran developed a fundamental concept behind today's advanced communications networking systems: digital packet switching.
Baran was born in Grodno, Poland and came to the U.S. at the age of two. In 1949, he earned his B.S. in electrical engineering from Drexel University and his M.S. from the University of California at Los Angeles in 1959. Following his graduation from UCLA, Baran was at the RAND Corporation where he designed his communication network to survive a first strike from the Soviet Union during the Cold War. Baran holds 31 patents for his work on several new communications technologies in part based upon the concept of packets. He is the recipient of numerous honors, including the 2007 National Medal of Technology and Innovation.


The “First Virtual Congress on Technological Innovation for Public Health, Epidemiological Intelligence and Global Surveillance” will take place in Panama City on August 7 and 8, 2013 from 8 am to 4:00 pm EST (UTC/GMT -5) at the Virtual Classroom of the Convention Center of the City of Knowledge. It will be broadcasted live through web streaming in Spanish and English with simultaneous translation. Viewers will be able to follow the discussion via Twitter @ArlettyVox #PanamaEpi and address questions to presenters in real time through tweets or e-mail: email@example.com.
The event aims at broadly disseminating to a multi-professional crowd, different ways in which technology is being used around the world to enhance the response to health and development challenges. Global experts will present examples of the use of information and communication technologies (ICTs), mobile media-rich approaches and biotechnology to identify and face new epidemics, strengthen national information systems and promote the access to information, training and health services in hard-to-reach areas.


News & Views
GoldCRM launches new Service Management product suite
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GoldCRM offers solutions designed to optimize workforce productivity and improve the quality and efficiency of complex business processes. Whether it's for fully automated field service management, dynamic reporting or remote device synchronization, our solutions enable your business to move to the next level of automation and efficiency while leveraging your current systems investment.
Our applications can be individually implemented or used together for maximum benefit to manage your end-to-end service delivery. Whether in the telecommunications, manufacturing, high-tech or utilities industry, GoldCRM delivers real-world solutions that enable service organizations to achieve superior performance.


The PRC-2080+ low band VHF transceiver is designed for multi-role tactical military and security applications. It is an extremely compact and lightweight unit which is simple to operate in demanding mission critical conditions. The PRC-2080+ is part of the family of Barrett transceivers that are field proven in over 150 countries, on every continent and in all environments.
In stand-alone configuration, the PRC-2080+ is ideal for squad level communication requirements. Using either the supplied advanced handset or optional tactical headset, the PRC-2080+ transceiver can communicate reliably up to 8 km in open space (subject to terrain and topography), using the standard tape whip antenna.
The standard package comprises:-
PRC-2080+ VHF transceiver
Advanced tactical handset
Tape whip antenna with gooseneck
Rechargeable 6.5 Ah Li-Ion battery
AC battery charger
Optional multi battery charger available
The PRC-2080+ Tactical VHF radio system has multiple levels of encryption and frequency hopping security available. Analogue voice and digital unencrypted data are fitted as standard.
The following levels of encryption are available:-
– Analogue Voice – Fixed Frequency (AFF)
– Digital Unencrypted Data – Fixed Frequency
– Digital Encrypted Voice – Fixed Frequency (DEFF)
– Digital Encrypted Voice – Frequency Hopping (DEFH)**
– Digital Encrypted Voice – Free Channel Search (DEFCS)
– Digital Encrypted Data – Fixed Frequency
– Digital Encrypted Data – Frequency Hopping**
** Requires an Australian Department of Defence Export licence.
For basic operation of the PRC-2080+, only the front panel controls are required. Field programming, advanced menu options, selective calling and group calling features are accessible via the PRC-2080’s supplied advanced handset.
The PRC-2080+ is an ideal replacement to the PRC-77 and its variants, which are now obsolete and susceptible to interception and jamming.
Users will appreciate the PRC-2080+ transceiver’s solid construction, simplicity and accessibility. Maintenance is quick and simple with only three internal modules which can be exchanged without any special tools. All inter-module connectors are gold plated and there are no wiring looms or complex back plane assemblies.
In designing the PRC-2080+, emphasis has been placed on ensuring low cost of ownership over a long service life. The transceivers software defined architecture ensures compatibility with legacy, current and future communication systems.
The PRC-2080+’s main circuitry is contained in three modules – the radio frequency (RF), digital signal processor (DSP) and power amplifier (PA) modules. A very high level of integration is used to minimise component count and to increase reliability.
The embedded software is controlled by the DSP module, which uses a low current, high speed DSP core engine. Speech coding and all frequency hopping and encryption functions are processed by the DSP under the control of a hostmicroprocessor. The RF module contains a high dynamic range front end with DDS (Direct Digital Synthesiser) system which achieves fast frequency switching times whilst maintaining low current consumption.
The PRC-2080+’s RF design takes into account the hostile electromagnetic environment and achieves excellent ECM resistance and co-siting performance. The PRC-2080+’s RF, DSP and software design make it one of the most cost effective, secure, high performance VHF transceiver’s available in the tactical military market today.


A iot provider is actually a business company that facilitates the property and release of net of points (IoT) products. These companies vary from IoT item style to IoT planning.
IoT is actually a highly effective innovation that collects massive volumes of records and also demands a specialized commercial infrastructure to manage it. A managed IoT solution supplier can help you hasten the amount of time to market and also lessen expenses.
There are actually numerous variables that influence the price of IoT companies. A few of these elements consist of the form of equipment utilized to develop the IoT application, as well as the area of the development team. In basic, a strongly knowledgeable crew will definitely set you back greater than a less-experienced one. hardwarenahe softwareentwicklung
One more variable is the expense of mobile connectivity, which is actually crucial for IoT services. Without a dependable connection, your workers will certainly be incapable to work together on jobs, which will certainly impact performance and also productivity. This is why Coeo provides a variety of network services and also solutions to strengthen employee connection, consisting of IoT services.
Last but not least, IoT applications demand a cloud-based platform that can easily check as well as take care of IoT gadgets. This system must offer a cloud API that enables you to separate your line for granular management as well as send out commands to individual tools. The system ought to also allow you to check the wellness of your IoT device as well as supply a technique to get valuable data coming from them.
IoT devices collect records and deliver it to a core data source for processing. These platforms demand based on the volume of details they process, and also the extra information you require to transmit, the much more it will wind up costing you. A decentralized P2P answer, like Nabto, defends you from spending for cloud solutions that you don’t need to have. The cost of these companies may build up promptly, so it is very important to keep them in mind when budgeting for IoT tasks.
Safety and security
The World Wide Web of Things (IoT) permits bodily contest get in touch with the electronic globe through sensing units that track improvements in their atmospheres and actuators that do something in response. These sensing units and actuators deliver data over wired (for instance, Ethernet) or wireless (for instance, Wi-fi, cell) networks to calculating units that can easily keep track of as well as take care of the health and actions of hooked up tools.
As IoT technologies grow, they are increasingly susceptible to surveillance risks. Cyberpunks can easily utilize IoT devices to access to networks as well as take sensitive info. For instance, the Mirai botnet struck domain title web servers in 2016 and led to enormous blackouts. The surveillance of IoT devices need to be a leading concern for handled provider.
Combined into MSP offerings, IoT may provide brand new chances for managed services providers as well as their clients. Nonetheless, it likewise offers brand new difficulties and possible threats for security and privacy. For example, the IoT permits organizations to collect terabytes of records that can be utilized for immoral functions. It is essential for MSPs to evaluate the advantages and also threats of IoT to produce a notified selection.
When selecting an IoT specialist, pick one that adheres to industry-standard surveillance methods. Guarantee they have expertise getting IoT tools, software program and the underlying structure. Furthermore, they must have experience in building and also managing scalable IoT solutions. Besides, they need to give a centralized dashboard that permits you to check out as well as deal with all your IoT devices. This will definitely enable you to find problems swiftly and take corrective actions before they become serious.
An essential component of an IoT environment is actually scalability, which permits the tool to increase and also reduce as demand expands or even deals. This component can easily conserve opportunity and also resources through steering clear of task breakdowns. Nonetheless, scalability is a complex method and also requires a variety of technical knowledge. IoT specialist can easily aid with the scalability of IoT units. They may additionally use companies to take care of and maintain an IoT item or program for future growth.
Scalability in IoT is a challenging endeavor that has to be taken into consideration at the style phase. This is actually due to the fact that altering course eventually is going to cost even more funds and is going to certainly not give the desired outcomes. On top of that, it is essential to decide on a solution that can easily take care of a huge quantity of information without dropping functionality or even stability.
To obtain scalability in IoT, you ought to start with the software program layer. It is actually vital to create a pliable architecture from the start, so you may include new components or even attach even more gadgets without affecting efficiency. Additionally, you must pick a system that supports the usage scenarios that you need to have which can easily sustain a lot of hooked up units. Finally, it is essential to test all the variables that can influence reliable device scaling. This features testing latency levels, bandwidth consumption as well as message distribution times.
Receiving IoT devices to interact with each other can be tough, particularly if they are constructed by different providers as well as make use of various units. An IoT specialist can aid you combine your tools as well as make certain that they operate all together perfectly. They may also supply assistance for ongoing maintenance as well as monitoring. By doing this, you may get the absolute most away from your IoT system.
When opting for an IoT provider, you must consider their abilities and exactly how well they may integrate along with other organization systems. Seek a service that may take care of the sizable amounts of data that IoT devices create, and also make sure they may size as your company develops. It is also essential to look at protection, as IoT devices commonly have sensitive information. Look for a supplier that follows industry-standard security protocols and has experience securing IoT tools, software, as well as cloud structure.
The IoT companies offered through Cisco consist of wireless connectivity, hardware prototyping, as well as integration. They likewise give high-end program development and consulting services that may assist you cultivate a prototype for your IoT item. These services can aid you stay away from expensive mistakes and ensure your item is actually market-ready.
IoT solutions are not just transforming the technique businesses handle their procedures, however they are actually also opening up brand new opportunities for monetization. For instance, IoT enables real-time analytics and also predictive upkeep, which can cause enhanced supply control as well as high quality management.


Nokia has been selected by Orange S.A. to evolve its mobile access network towards 5G. Nokia will provide a range of products and services from its end-to-end 5G portfolio, including Single Radio Access Network (RAN) technology, advanced automation tools, a state-of-the-art network management solution and associated professional services to Orange France, according to Nokia press release.
Orange S.A. is a French multinational telecommunications corporation. It is the tenth-largest mobile network operator in the world and the fourth largest in Europe.
The deal will allow Orange S.A. to significantly develop customer experience, improve network capacity, allow further automation and create new innovative services that require ultra-high bandwidth and low latency.
The new network will provide better mobile broadband services as well as allow Orange to provide ultra-low latency applications in areas such as industrial IoT, health, public safety among others.
Nokia will initially maintain Orange’s 5G commercial launch by enabling the rollout of its state-of-the-art SRAN network to 5G through software upgrades, streamlining the initial steps to build 5G. It will also introduce 5G New Radio (5G NR)-based AirScale hardware, and software for the new 5G frequency bands.
“For Orange, the deployment of 5G represents a huge challenge and is one of the main priorities of our Engage 2025 strategic plan. We are delighted to be pursuing our partnership with Nokia, a key long-term partner, in order to develop a powerful and innovative 5G network. 5G will enable the development of new use-cases and new services, and will provide an enriched experience for our customers – both in the consumer and business segments. Through this agreement, Orange reaffirms its ambition to being network leader.”Fabienne Dulac, Deputy Chief Executive Officer and CEO of Orange France
“Nokia is thrilled to bring 5G to France with Orange, a key European operator,” said Tommi Uitto, President of Mobile Networks at Nokia. “Nokia has exactly the right technology for this project, given our excellence in SRAN, 5G and end-to-end network infrastructure leadership. This deal builds on our long-standing trusted relationship with Orange and will deliver a superior experience for businesses and consumers alike.”


To add spot coverage in high-traffic areas, CommScope offers a family of in-building distributed antenna systems (DAS), mounting hardware and accessories that enhance wireless coverage. Designed for simple installation and minimal visual impact, our in-building and outdoor antennas feature a multi-band design that supports a wide range of frequencies.
Our DAS antennas are as effective in difficult-to-cover areas — like tall office buildings — as they are in parking garages, stadiums, airports and shopping malls. We also offer "audible-click" mounts for MIMO stadium antennas that provide accurate horizontal and vertical adjustments in 2- and 5-degree increments.
Covers multi-band frequency range:
For indoor and outdoor use
Low passive intermodulation (PIM)
Delivers consistent patterns
Cell-Max directional high capacity venue MIMO antenna


Caller Name Announcer speaks every thing while some one is calling you or send you a message, you will identify it with out looking to your smart phone. This Mobile App uses the built-in Android text-to-speech engine to speaks the “incoming” caller name or SMS sender name and contents of the SMS. Caller Name Announcer.
Caller Name Announcer
|Post Name||Caller Name Announcer|
|Post Type||Mobile App|
This Speaks out the caller name clearly in between the ringtone reducing its volume. This is highly applicable in a situation like if you are driving and the phone is in your pocket or some one sends you an SMS while your smart phone is in other room. Caller Name Announcer will not work if your smart phone does not have text-to-speech library but this is not a problem you can easily “DOWNLOAD” it from Google play store.
Welcome to Caller Name Announcer the top Android Tools app that announces the caller name the instant you receive an incoming call or text messages. Faster, better, and 100% free, This is a powerful announcer app to help you drive safely & helps you interact with the device in situations when you’re physically limited.
Call and SMS announcer
- Announces calls and SMS loudly.
- Announces SMS with content.
- Announcement facility during call waiting.
- Announces unknown calls by custom name or number.
- Option to change announcement speed.
- Adjust different announcement volume for calls or SMS.
- Announcer works in all modes (Ring, Silent, Vibrate).
- The app works with any TTS (Text to Speech) engine.
- Announcer supports many languages. (TTS supported languages)
- Get Flash Alerts for incoming calls, SMS, and notifications.
- App has various flash blinking patterns.
- Separate flash numbers for SMS and notifications.
- Flash Alerts works in all modes (Ring, Silent, Vibrate).
- Flash Alerts are automatically closed when there is a low battery.
- Disable all alerts for specific contacts.
- Set a custom name for a particular contact number.
- Turn off announcer or flash alerts for specific contacts.
|Caller Name Announcer||App|
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It’s not uncommon for people to have an outdated idea of what hearing aids can do. The truth is, that hearing aid technology has continued to evolve and improve throughout the years, providing greater benefits to those with hearing loss.
Four Helpful Hearing Aid Features
- Directional microphones amplify sounds coming from the front of the user and reduce noise coming from other directions. They make it easier to follow conversations in places with background noise, like when you’re out to dinner with your spouse at Roma Italian Bistro in Ruston. A 2016 study examining the effects of directional microphones found that “directional microphone processing effectively reduced the cognitive load of listening to speech in background noise.”
- Bluetooth compatibility enables hearing aids to connect to your smartphone and other devices. It allows you to stream sound from your device directly into your hearing aids. This makes activities like phone calls, Zoom meetings and even listening to music easier and more enjoyable by eliminating feedback and providing clearer sound quality.
- Hearing aid apps let you adjust your hearing aids, contact your audiologist or hearing specialist and monitor your battery all from your smartphone. Additionally, some have the ability to route phone calls directly into your device or covert speech to text.
- Rechargeable batteries allow users to not have to deal with the hassle of changing out disposable batteries every 3-10 days or having to carry extra batteries with them when they leave the house. This can be especially helpful for people with dexterity issues, as hearing aid batteries are quite small and may be difficult to hold. Instead, you can place your hearing aids in their charging station at night and wake up to a full day of battery power.
Choosing the Right Hearing Aids for You
Not all hearing aids come with the features mentioned above. If you are especially interested in one or several of these features, talk with your audiologist about your options. The process of choosing a hearing aid, whether it’s for the first time or as an upgrade, is a personal one and depends on many factors. By sharing what’s most important for you in a hearing aid, your audiologist can help you find the right pair to improve your listening experience and offer you the most user satisfaction.
For more information or to schedule an appointment, call the experts at Advanced Audiology & Hearing Aids today.