By using Gobig WiFi solution, you can easily deploy and manage a powerful guest WiFi service in any place and senario.
WiFi user is automatically taken to a landing page where your name, logo, welcome message and Ads are displayed.
WiFi user can use their own Facebook, Google+, Twitter account to login for guest WiFi use without any personnel assistance. In the meantime, WiFi user has the option to view and like your facebook page or follow your Twitter account.
WeChat One Button Go WiFi is supported, which WeChat user can simply connect to WiFi without login and follow the your WeChat official account.
By utilizing high-capacity high-performance WiFi devices and WAN optimization and QoS control technology, WiFi user has much faster network connection than ever and much better user experience.
Designed to meet PCI and HIPAA compliance to provide a safer network connection.
You can have a better understanding of who your customers are and when and where your customers visit.
Local video, Youtube video or Facebook video can be played everytime when WiFi user is connected to promote you video, product and business.
After being granted access to guest WiFi, WiFi user can be automatically redirected to your customer portal such as your official website or self-service ordering systems.
You can use built-in SMS/Email campaign systems to send text message and Email to the customer directly.
Based on visits, our smart loyalty programs can automatically send your customer a welcome message or a coupon or other marketing materiel instantly to automate customer engagement.
You can integrate your web-based POS with Gobig WiFi systems for self-service to reduce labor and device cost.
Gobig Wifi integrates with other CRM systems such as Mailchimp and Active Campaign.
Gobig Wifi works with third party coupon creator to provide an integrated solution.
Besides out-of-box visitor insights, customer data can be exported for further analysis and process.
“Gobig WiFi kills several birds with a single stone. The plug-and-play router hooks up to your existing Internet connection to offer customers and guests WiFi service. While you fulfill an important demand, you also are given a wide array of tools for analyzing your customers and improving your marketing strategies.”
- Jonathan Garro, GetApp
“For the same cost as Constant Contact or Fishbowl, I get a complete Guest WiFi solution and email marketing software that is easy to use and easy way to build and manage my customer list.”
- Mark Jones, Restaurant Owner


The Print Wire
Feb 26, 2013
Verdigris Blog: The Mobile Opportunity for Print
EFI’s PrintMe Mobile is now available in the US and Europe, with plans for Asia in the pipeline. This server-based software lets you initiate printing from any sort of mobile device to any networked printer, regardless of brand or model. The technology turns the printer into a WiFi device and has the scope to support thousands of users across multiple wireless subnets. HP’s e-Print technology initiates document production via remote instruction to the printing device. Currently this is via email but there is no technical reason why this couldn’t be adapted for direct communication with the output device. HP has been embedding web technology into its printers for a number of years in order to develop its position in mobile document production.
If GSMA’s numbers are right, there is a massive opportunity for these manufacturers and for their print service provider customers to capitalise in all markets. Brazil for instance has over 260 million active mobile connections and is the fourth largest mobile market in the world. By 2016, half the world’s 3.4 billion internet users will be in Asia Pacific and account for half of the world’s 19 billion network connections. Smartphones are already set to be the largest source of global IP traffic and are expected to overtake laptops by next year. By 2016 GSMA expect that tablets will drive 10% of IP traffic. And the money part of the picture is especially juicy: the mobile ecosystem will be worth $9.1 trillion by 2017 and mobile data revenues are expected to exceed voice revenues by next year.
How much of these revenues the printing industry might capture is anyone’s guess. What is clear is that print is no longer a purely static business and that the mobile data industry offers opportunities for all sectors. It’s a whole new dimension to the ecofriendly on demand digital printing model. Whether it’s photobooks sourced from a social network via tablet, or images from a mobile, there’s no lack of mobile print models. Can creative printers take the photobook business model and extend it to documents and other applications? Who knows. But what we do know is that consumers will want to store all that data somewhere, so why not in print?
– Laurel Brunner
Verdigris supporters who make the blog possible: Agfa Graphics (www.agfa.com), Digital Dots (www.digitaldots.org), drupa (www.drupa.com), EFI (www.efi.com), EcoPrint (www.ecoprintshow.com), Fespa (www.fespa.com), Heidelberg (www.uk.heidelberg.com), HP (www.hp.com), Kodak (www.kodak.com/go/sustainability), Pragati Offset (www.pragati.com), Ricoh (www.ricoh.com), Unity Publishing (http://unity-publishing.co.uk) and Xeikon (www.xeikon.com)
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Bio - Brig Gen Gregory Brundidge
Brig. Gen. Gregory L. Brundidge was the Director of Command, Control, Communications and Warfighting Integration, Headquarters U.S. European Command, Stuttgart-Vaihingen, Germany. He was responsible for providing EUCOM with the command, control, communication and computer systems capabilities necessary to prevent conflict, respond to crises and conduct military operations.
General Brundidge was commissioned in 1979 as a graduate of the U.S. Air Force Academy. He directed software maintenance and development teams, led Air Combat Command's Network Division, and worked as a staff officer at Headquarters U.S. Air Force and the Joint Staff. He served as Director of Communications and Information for Pacific Air Forces at Hickam Air Force Base, Hawaii, and Air Combat Command, Langley AFB, Va. In his last Air Staff position, he served as the Deputy Director of the Operational Support Modernization Program, Secretary of the Air Force Office of Warfighting Integration and Chief Information Officer. He commanded three times at the squadron and group levels, culminating as the Commander of the 3rd Combat Communications Group, Tinker AFB, Okla. Prior to his current assignment, General Brundidge was Deputy Chief of Staff, Communications and Information Systems, Multi-National Force-Iraq, Baghdad, Iraq.


The Mac Park Distributed Antenna System (DAS) project consisted of installation and support of a DAS project in a high rise building in New South Wales. Mac Park is a large scale commercial high-rise building that hosts a number of tenants across its multiple floors. This building required an Active DAS system due to the size of the building. Madison Technologies was engaged by a leading electrical contractor to complete this project.
Building projects need to run seamlessly, and it is important to make sure each element is installed without impacting the costs and time of the overall project. During the project, the lead Carrier requested that Madison Technologies change the originally approved DAS design, to accommodate equipment from a alternate vendor, while maintaining the MCF2018 standard. This posed a potential risk of project delay, budget blow outs.
The Madison Technologies team worked diligently to design and install an alternate MCF2018 compliant solution to meet customer and Carrier requirements on time and within budget. An Active DAS solution was engineered to ensure that all areas of the large building would have sufficient coverage. An Active DAS includes active equipment that has a power source, allowing the signals in the building to amplify and therefore reach a larger coverage footprint. Madison Technologies used a combination of directional coupler splitters, network combiners, fibre distribution frames, connectors, cable loads and antennas for this Active DAS solution.
This DAS system was implemented in the reduced time-frame, and met the needs and requirements of the client and lead Carrier. The solution remained cost effective as it was designed intentionally for large scale deployment. The client was immediately able to reap the benefits of having high speed, reliable and secure coverage from all providers throughout their building. They also saw immediate improvements to in-building connectivity amongst smart devices.
For more information and to read testimonials, download the case study here.


Glitches due to soft errors can act as a severe deterrent to asynchronous circuit operations. To mitigate soft errors in quasi delay insensitive (QDI) asynchronous circuits, built-in soft error correction in NULL convention logic (NCL) has been introduced . However, this technique cannot detect errors during the NULL phase of NCL pipeline, and also cannot avoid error propagation into the pipeline after its detection. This project provides a modified approach to overcome these limitations with, on average, comparable power and latency costs. This work also analyzes the temperature variation effects on latency and power consumption of the proposed design. The modified NCL pipeline is implemented in IHP 90nm CMOS technology and analyzed under the worst-case operating conditions. It is found out that the proposed design works correctly for the entire operating range.
F. K. Lodhi, O. Hasan, S. R. Hasan and F. Awwad, “Modified Null Convention Logic Pipeline to Detect Soft Errors in Both Null and Data Phase, ” in IEEE International Midwest Symposium on Circuits and Systems (MWCAS 2012) ,IEEE Circuit and System Society (CAS), Boise, Iadho, USA, pp. 402 – 405.


Hello, I'm Morteza Kazemi. I am self-employed and work as an ICT engineer with over 8 years of experience.
Designing and running telecommunication, computer network, CCTV, and theft prevention systems
- ICT engineer with over 8 years of experience.
- Proven success in running computer systems leading to enhancement of organization’s
- Proficient in designing, standardizing and running modern telecommunication systems.
- Skilled in Windows, Technical Support, Virtualization, Panasonic PBX and IP-PBX Systems, VOIP, CCTV, and Theft prevention Systems.
- Strong information technology professional with a Master's degree from Islamic Azad university of Arak-Iran


This weekend on my hike to Snow Lake, I tried out the automatic beaconing feature of my Kenwood TH-D72A.
I thought I had everything setup and working, but obviously, I didn’t.
During the hike I discovered that I could manually tune to the APRS frequency, and the radio would broadcast the packet properly. That lead me to believe that the radio wouldn’t broadcast APRS when tuned via a memory channel.
It turns out that it’s an issue with Chirp. I hope it gets fixed soon!


The community notion can be exploited as a rational concept leading users to cooperate in sharing resources on Wireless Mesh Networks. We propose a novel concept for self-organizing networks, where multiple entities (network elements or users) collaborate to achieve common goals, and in particular, to establish the basic connectivity and service delivery infrastructures. The resulting architecture is based on wireless mesh communications, with different entities taking different roles in the communities in a cross-layer approach. These communities can collaborate, leading to increasingly complex and geographically extended scenarios.
Conference: WINSYS 2007 International Conference on Wireless Information Networks and Systems in Barcelona, Spain


AT&T has been the brunt of many complaints from all over about poor cell coverage in certain areas. I don't know how many times I've read someone saying they would love to get an iPhone but won't because of AT&T's coverage. Now I actually haven't had too many complaints and have been a PacBell/AT&T/Cingular/AT&T customer for some time. Perhaps I'm just lucky or not picky enough.
For those that do perhaps have poor coverage near their homes, AT&T is now offering a "personal cell" you can install at home. Called the MicroCell, it is a femtocell device that is supposed to boost 3G signals indoors, and a phone is supposed to be able to switch to/from it and the regular 3G network. It is nice that AT&T is doing something to help customers in poor reception areas, but that is where the kudos stop.
First, the way it works is that the femtocell ties into your home internet connection to get to AT&T's network, effectively routing your cell phone connection over your cable/DSL/FiOS connection. Sounds nice, but if you were going to make calls over your internet connection why not just use Skype or some VoIP provider like Vonage and avoid the hassle of another device? You say you want to receive incoming calls? Fine, get a Google Voice number and give that out instead of your mobile number and use it to route incoming calls wherever you want!
Second, while the femtocell (it is a fun word to say so I'm writing it a lot, go ahead, say it out loud 5 times in a row) will give you a stronger signal at home, if you are indeed in a poor reception area, once on a call, you are stranded at home as the call will drop if you leave the range of your femtocell. So it is really no better than a cordless phone at home and see the Google Voice suggestion above to handle the incoming calls.
Third, they are charging $150 for the device. Ok, they say there is a $100 rebate, ... IF you sign up for a $20 monthly plan! So let me get this straight. I'm already paying nearly $100 a month or more for my voice and data plan, another $50 plus a month for high-speed internet, and because the former doesn't work well you want to use the service from the latter to "fix" it but want to charge me for equipment and another $20 a month on top of that?!
Before piling on too much, it is just a trial right now and pricing when they roll it out could change. And AT&T shouldn't be singled out as both Sprint and Verizon are reportedly doing the same thing (not but with 3G speeds, so give AT&T credit there!) and are probably subject to the same criticisms above.
So give them credit for identifying a solution for a common problem, just as a consumer don't give in to paying more money on top of what you are already paying. There is other technology that can leverage what you are already paying for to help solve the problem.
Thoughts? Agree or disagree?


Bulk sms is refers to sending sms in a larger Volume is called Bulk sms. It is used By media Companies, Banking Services (For Marketing and Fraud Control).
Bulk SMS messaging is a description for application-to-person SMS messaging services. It refers specifically to the sending of large number of SMS messages to the mobile phones of a predetermined group of recipients.
A defining characteristic of bulk SMS messaging is that businesses and organisations can make use of one or more solutions to send and receive SMS messages, namely; a mobile phone application, a software programme, a web interface, or integrate an SMS API with their website or system. These bulk SMS messaging solutions interface with a service providers’ SMS gateway to ensure the delivery of messages to mobile phone numbers anywhere in the world.
⦁ High Open Rate:- Almost every SMS sent is open within 10 minutes. Whereas the only fraction of Email sent is open by Email and most of them deliver into the spam box.
⦁ High Conversion Rate :- In this ERA, Where there are many messaging apps available in the market Still people prefer SMS to communication. And Especially B2C receives high conversion rate compared to other platforms.
⦁ Inexpensive:- Bulk SMS Service is very budget friendly and economic compare to billboard, television or magazine advertising.
⦁ Effortless:- Sending an SMS is not a rocket science and not requires any Ph.D. degree. Any person who has a mobile knows how to send SMS.But, if you are looking for Sending bulk SMS to your customer then mobile is not a good choice.
⦁ Easy reach:- Now a day’s even a simplest mobile phone has an SMS features.People do not need any internet connection to access the SMS features.
⦁Wide appeal:- More than 4.77 billion mobile users out there (this is a HUGE amount, isn’t it?)
⦁Speed:- In Email Marketing User have to Log in and need an internet connection to operate an Email and other advertising media demand HUGE money but in Bulk SMS service you do not only save money but you save time also.
⦁Personalization:- SMS can be Personalization too.With BULK SMS SERVICE you can achieve this level of rationalization other services might provide this feature but they Demand Huge money.
We respect your privacy while keeping you updated about our excited services..


This ease of use along with the cordless convenience are the main reasons cable mics have become a thing of the past. Old school wired microphones convert sound into an electrical audio signal that is sent to a sound system through a cable. Wireless microphoneson the other hand, convert sound into radio signals which are then sent from a transmitter to a receiver which sends it to the sound system. So the process is somewhat similar with the key difference being that wireless mic systems are actually using radio frequencies to transmit the sound.
The result is easier mobility when using wireless mics. Using a wireless mic system is easier and more affordable than you might first imagine. All you need to get started are the three primary components which are:. Wireless Microphones come in many different styles, each with a specific purpose. The most common is the handheld mic which is what many people picture when conjuring up an image of a microphone.
This would be used by stand-up comedians on stage or singers who prefer this mic style. These are small but effective mics that can be very easily hidden under clothing. There is also the head-worn mic which is what you would see at the aforementioned Zumba class or at a pop concert. Transmitters are required to send the audio signal to be output as live sound.
Handheld mics do not require a separate transmitter as there is one built right in to the unit. For all other smaller, wireless mics, the user would be required to also wear a small transmitter pack. Receivers are the electronic devices that receive the radio signal from the transmitter and convert it into the live audio you hear through the sound system.
They come in either single of multi-channel receivers, depending on how many wireless mics you will be using at the same time. Multi-channel receivers are often available in either dual or quad capabilities. If you have a function or production that requires the use of microphones, you will definitely want to go wireless.
The most obvious benefit is the ability to move and maneuver without worrying about tripping over mic cords and cables. Beyond this, they also provide a cleaner sound compared to wired mics.
When the mic is fixed to the performer or speaker, the mic will turn and move as that person does. This prevents the audio drop-offs that can occur when someone turns away from a mic-stand or another fixed mic.
I plan once in a life time events so I need to ensure that all of our AV needs are met in a flawless, professional manner and Jordan and his team have exceeded my high standards and expectations every time. They are knowledgeable, efficient, detail oriented, flexible and accommodating. Kettner Creative How do wireless microphones work?AH, THE freedom of wireless microphones.
Smartphone Film Pro
The thrill of standing next to the drummer on a wobbly riser. The excitement of walking into a crowd and singing with drunken patrons.
The wonder of hearing a taxi dispatch through your P. Well, no gig is perfect, but using a wireless mic or instrument system definitely beats the confines of a wire. How High Is Ultra High? Each has advantages and disadvantages, and may be more appropriate for a given application.
UHF transmission tends to suffer less interference due to the fact that traditionally the UHF band has been less crowded. On the other hand, the inherent construction costs for UHF systems are higher. The 2. Manufacturers such as AKG and Line 6 are using 2. Other advantages of digital wireless include increased dynamic range and data encoding to prevent interference and unauthorized eavesdropping! Digital wireless may take various forms.
Some systems employ frequency-hopping, spread-spectrum technology similar to that used for cordless phones. This technology requires more bandwidth than an FM signal, so they usually operate in the MHz or 2. The information transmitted is digital and encryptedyielding an inherently low noise floor, but since the transmission itself is analog, efficiency and transmission range are increased.
Arguably the single most important wireless feature is frequency agility. At some point, you may need the ability to change the channel to avoid interference—even in a relatively immobile installation such as a church. If you are traveling with a wireless system, then fixed-frequency operation should be considered a deal-breaker.
Frequency agility varies with price. Initially, this might not seem important, but take a look at the wireless requirements of your typical four- or five-piece bar band: a wireless mic for the lead singer, two wireless guitars, and one bass, plus several sets of wireless IEMs. You definitely want a wide choice of frequencies. Speaking of interference, some wireless receivers have the ability to scan the airwaves and automatically choose a vacant frequency, a very useful feature.
You must realize that all such technology is only capable of detecting RF gear operating when the scan takes place—so if you are performing in a venue where for example security uses radios to communicate, ask them to turn their radios on during soundcheck.PicoMic - 2 Microphones 1 Receiver 2.4GHz Wireless Microphone System
Diversify Your Portfolio Radio transmitters broadcast their signals without really caring where those frequencies go. Much like low-frequency audio waves bouncing around a control room, multipath can cause phase cancellation, resulting in dropouts. Line 6 Relay G One of the best ways to combat signal loss due to multipath is through the use of true diversity wireless.
True diversity employs two tuners and two antennas for reception. This provides a major advantage in maintaining reception.
A non-diversity system utilizes one antenna and one tuner and thus may be more subject to multipath—but again, the application dictates the importance of the feature. If the receiver is located relatively close— within, say, 20 feet and line-of-sight of the transmitter—multipath is less of an issue.
A variation of this concept is antenna switching, when an electronic circuit automatically compares signal strength at the two antennas and connects the one with the stronger signal to the tuner.
This technology costs more than non-diversity technology but is not as prone to dropouts areas onstage where the receiver loses the transmitter. Part of any soundcheck should be walking the stage with the transmitter and marking the floor at dead spots. I guarantee the lead singer will stand there all night!Audio and video conferencing solutions from Yamaha streamline collaboration and boost productivity wherever people need to speak openly, share freely and create exceptional things.
With core tenets of simplicity, clarity and efficiency, Yamaha brings to unified communications a passion for sound and performance that has been creating excitement and inspiration for more than years. With considered design and superior audio performance, these speakerphones are built for conversations that matter.
A powerful combination of industry-leading audio and video conferencing technology makes remote collaboration easier and more natural than ever before. Enjoy clear, high-quality sound in bussiness comunication beyond with this flexible variety of products, all engineered with industry-leading speech technology. Home Products Unified Communications. Unified Communications Audio and video conferencing solutions from Yamaha streamline collaboration and boost productivity wherever people need to speak openly, share freely and create exceptional things.
Speakerphones With considered design and superior audio performance, these speakerphones are built for conversations that matter. Video Collaboration A powerful combination of industry-leading audio and video conferencing technology makes remote collaboration easier and more natural than ever before. Speakers Enterprise speakers to create an immersive feeling for business communications.
Microphone Systems Enjoy clear, high-quality sound in bussiness comunication beyond with this flexible variety of products, all engineered with industry-leading speech technology. Accessories Accessory products for UC products.
Contact Us. Sales Inquiries We want to hear from you.
Please fill out the form and our team will get in touch. What's New. Portable Office Tips for Employees that Travel View All.These days, wireless microphones offer the same crisp recording quality as traditional wired microphones, so you can create audio wherever you go without worrying about cables, cords, and wires.
Using Multiple Systems
At Amazon. Find the features you're looking for—choose from omnidirectional mics that pick up sound from every direction or noise-canceling mics that cut background noise to a minimum. Wireless microphones can be portable or rechargeable, so you don't need to worry about finding an outlet if you're outdoors, on the road, or away from the studio.
Headset microphones allow you to move about freely without sacrificing your sound, and reporter-style handheld mics provide you with the high quality you've come to expect from modern audio equipment. Brands like Audio-Technica, Naxa, and Pyle bring you the features you need in a range of prices, from top-of-the-line systems to smaller wireless microphones that can easily meet your amateur recording needs.
If you're performing interviews, you might want to consider a wireless microphone system that includes two mics, one for you and one for your guest. For musical recordings, take a look at instrument microphones that are designed to connect to musical instruments and create clean audio recordings with a minimum of interference.
Making professional-quality recordings at home can be easy when you have the right equipment, and Amazon. Amateurs and professionals alike can use wireless microphones to create long-lasting digital audio. Skip to main content. FREE Shipping on eligible orders. Show only PoP voice items. Show only Movo items. Show only Solid items. Show only Tronic Master items. Show only Bietrun items. See newer version. Show only BlueFire items. Show only Rode items.
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New Used Renewed.In this article we are going to sift through the 10 best wireless microphones inpick them apart and put them through their paces, for a thorough investigation into just how stable and noise free the transmissions and signals really are, to determine whether they are a genuinely viable option in these modern times.
The conveniences that come with the age of wireless technology have accelerated manufacturing and electronic audio evolution to the point that today, essentially anything you can think of, you can bet they have or are working on, a wireless version!
Wireless mics have been utilized in the field and for professional live performance the world over effectively since we first began broadcasting.
The majority of our reliable products are high end and were once for 'elite' use, employed in large scale productions, late night live shows, and almost exclusively for professional television studios or out and about for documentary or journalism use. With that in mind many a professional will be a little skeptical of the capabilities of a lower priced model and they do have a few drawbacks so today we are showcase the top ten on the market for a closer look.
Alongside our comparative wireless mic reviews we have included and informative buyers guide to give you the before you buy. Check Amazon Price. Check Sweetwater Price. First up we have something super from the experts at Shure. The original SM58 is one of the most notorious go to professional level microphones, a world standard and arguably one of the best.
Its excellent response is tailored to live vocal use. It is a cardioid mic which means it picks up noise uni-directionally, this pickup pattern means directional vocals are easy to isolate from background noise. It has a heavy duty build is well-manufactured and has a steel mesh grille to protect it from the hard knocks it could be exposed to during transit. It also features a built-in spherical filter which automatically minimizes harsh plosive sounds.
This is a handheld wirelessly transmitted version of the ever-popular SM58 it is made for use with one of Shure's rugged and innovative SLX Wireless systems.
They have matching frequency presets to pair more easily. The wireless technology is centered-around Shure's patented proprietary Audio Reference Companding which creates new horizons in terms of the sound limitation of conventional wireless tech. It has a pneumatic shock mount system to reduce handling noise and a great frequency response of between Hz. Why We Liked It - It is a great wire-free rendition of one of the worlds most consistent performance mics.
Next up we have some hot handheld competition from Sennheiser another industry giant, which at first glance may seem alarmingly a little pricier more than double in fact but it is for a complete system as opposed to just a microphone and pick-up. It has been designed for field operation and provides professional quality audio for interviews and reporting.
The mic is technologically enhanced to respond to spoken word and cancel any unwanted background interference. It has tuneable ultra-high frequencies as well as a bank of a dozen compatible frequencies which can be auto-scanned between for increased ease of use.
The menus are user-friendly too and they have slightly more on-board controls than less expensive models. A wide range of accessories is provided as part of the system package so they will be adaptable to the majority of needs. Why We Liked It - We like this field operated handheld microphone it is very true to the original vocal audio can be used fairly effortlessly in conjunction with your camera and once again comes from a trusted brand.
Another awesome option is this system set-up from Audio-Technica. It functions within a completely separate range than TV and DTV interfaces so it can maintain a signal that is free of any interference. It has an instantaneous channel selection feature, all receivers and transmitters display an easy to read unique identity.
They utilize Time Diversity and Space Diversity to maximize signal integrity and can configure multiple pathways simultaneously. We began todays reviews with an exemplary wireless microphone model from Shure — their legendary SM58, this is a full system version as opposed to the just the microphone itself. The wireless S58 microphone is perfectly tailored for vocals and known for its bright mid-range frequency response and bass roll-off. It functions in a unidirectional manner with its cardioid magnetic field.
It is expertly crafted, very durable and incorporates a built-in 'pop' filter as previously divulged in our first review.
Why We Liked It - It Is a reasonably priced professional system for live use that comes from a well-loved and trusted manufacture. Now for a sneak peak at the next step up in Shures extensive wireless range.
It sells with not one, but two wireless SM58 premium quality vocal microphones.Posted By: neilsheppard 17th September This Article has been updated. Using a Smartphone for filmmaking means you are far more mobile than a conventional film crew. However when it comes to recording your sound you can limit your mobility with wired microphones. These connect to your Smartphone by cables that can constrain your interview subjects as well as restrict your movements. The solution to this problem is to use a wireless microphone that works with a transmitter and a receiver.
You would think there would be many different wireless microphones available but in truth only a few are any good. Both are excellent wireless microphones and professionals use them on many films and television productions. This content uses referral links. Read my ethics policy for more info. Alternatively you may need a or so they can work with your Smartphone. Also, to get these wireless microphones to work successfully you will need to use a cable to match the impedance of the Smartphone.
So if you cannot afford the Sennheiser or the Sony what other choices do you have? In the past cheap wireless microphones were not worth the investment. They would often have inference problems or use restricted wireless channels. Luckily this has now started to change and there are now a few quality wireless microphones available that are affordable to those with lower budgets.
If you need a low budget wireless microphone for your Smartphone movies you cannot go far wrong with the Rode Wireless Go Radio Microphone. The Rode Wireless Go includes a transmitter and a receiver which both measure just 44mm x The transmitter has an omni-directional condenser microphone that is right inside the unit.
The receiver has a range of up to 70 metres but be aware that you must keep a line of sight with the transmitter or you may get reception problems. The receiver has a clip mount and you can also attach it to cold shoe mount above your Smartphone.
You can set the TRS output socket to lower the audio signal by -0dB, -6dB or dB if you need to bring down the audio gain into your Smartphone. Both transmitter and receiver have built in batteries that you charge with the included USB-C cable.
On full charge they should give you up to 7 hours continuous use. Samson is releasing some great wireless microphones for Smartphone and the is no exception. Lavalier microphones are the workhorses of audio production and you will see them in use everywhere, especially in news and documentary interviews.
To connect this to your Smartphone you will need to buy a that will allow you to connect it to your iPhone. Once you have set up all that your subject should be able to walk around freely with a wireless range of about one hundred feet.
Although this range may be less if you have obstructions in the way or walls in the surrounding environment.While wireless systems have freed performers from the bonds of cords and cables, they've unleashed a dizzying array of headaches for the sound crew. Getting a wireless system to behave predictably is a challenge faced by touring professionals and newbies alike. No one and no system is immune. A Shure associate sinceDavida Rochman graduated with a degree in Speech Communications and never imagined that her first post-college job would result in a lifelong career that had her marketing microphones rather than speaking into them.
Today, Davida is a Corporate Public Relations Manager, responsible for public relations activities, sponsorships, and donation programs that intersect with Shure at the corporate and industry level.
Still, it doesn't have to be guessing game. Understanding the basics of how wireless systems and radio waves function will help you consistently triumph over dropouts, interference and distortion.
You can start right now by avoiding these common errors. Signal blockage Maintain line-of-sight between the transmitter and receiver antennas as much as possible.
Avoid metal objects, walls, and large numbers of people between the receiving antenna and its associated transmitter. Ideally, this means that receiving antennas should be in the same room as the transmitters and elevated above the audience or other obstructions. The human body can also interfere with wireless signals. Largely composed of water, our bodies absorb RF energy.
In addition, if a user cups his or her hands around the external antenna on a handheld transmitter, its effective output can be reduced by 50 percent or more. Similarly, if the flexible antenna on a bodypack transmitter is coiled or folded, the signal suffers. Incorrect antenna type or placement Receiver antennas are one of the most misunderstood areas of wireless microphone operation.
Mistakes in antenna selection, placement, or cabling can cause short range, dead spots in the performance area or low signal strength at the receiver that leads to frequent dropouts. Modern diversity receivers offer much better performance than single-antenna types, but the right antennas must still be put in the right place to maximize the performance and reliability of the system.
To ensure good diversity performance, space antennas apart by at least one-quarter of a wavelength about 5 inches at MHz. The receiver antennas should be angled apart in a wide "V" configuration, which provides better pickup when the transmitter is moving around and being held at different angles.
Try to keep antennas as close to transmitters with line of sight as is possible. Antennas can also be frequency band-specific. Don't try to use an antenna from another system without double-checking the frequencies first. Increasing the separation between diversity antennas up to one wavelength about 20 inches at MHz will improve diversity performance. Beyond one wavelength, extra distance between the antennas will not significantly improve diversity performance, but may allow better coverage of a large stage, church, or meeting room.
If the antennas will be far from the stage, use directional antennas to improve reception by picking up more signal from that direction and less from other angles. If the antennas will be connected to the receiver with a length of coaxial cable, in-line antenna amplifiers may be required to overcome the inherent signal loss in the cable. Total net loss should not exceed 5 dB. Poorly coordinated frequency set A properly coordinated set of wireless frequencies must satisfy two criteria: Frequencies must avoid local active TV channels Frequencies must be mutually compatible Television transmitters may operate at power levels up to one million watts while wireless microphone systems typically have only 50 mW fifty one thousandths of one watt!
To combat broadcast television interference, avoid using frequencies of local active TV channels. How local is local? The good news is that indoor setups are at less risk than outdoor setups because building structures will usually strongly attenuate TV signals. Inside buildings of substantial construction, it may be possible to ignore TV stations as close as miles. Still, since the locations and assignments of television stations are well known, it's pretty easy to choose relatively safe wireless microphone system frequencies in a particular area.


Dipl.-Ing., Patent Engineer
Sebastian Greding studied mechanical engineering at Munich Technical University (TUM), specializing in medical engineering and microtechnology. In Addition to his studies, Sebastian Greding acquired some experience in basic research in the field of imaging techniques in a research center of an international company, as well as gathering experience in software development at a company which specializes in software for clinical trials. In his Diploma thesis, Mr. Greding dealt with optimization of pulse sequence in cochlea implants. Since 2014, Sebastian Greding supports KNH Patentanwälte in drafting patent applications and he is involved in patent prosecution procedures in Germany and abroad as well as in patent infringement procedures. Sebastian Greding focuses on the field of mobile technology.
Drafting patent applications, participation in patent prosecution proceedings in Germany and abroad and participation in patent infringement proceedings.
Communication technology (in particular mobile communications technology, network technology and network protocols), medical engineering (in particular medical devices and biocompatible materials as well as imaging techniques), micro-technology (in particular micro-technical sensors and actuators as well as microcontroller programming), software development (in particular web-based software for clinical trials).← Team


While the sound produced is still called a "ring", more-recently manufactured telephones electronically produce a warbling, chirping, or other sound.Variation of the ring signal can be used to indicate characteristics of incoming calls.
On a POTS interface, this signal is created by superimposing ringing voltage [90 volts AC at 20 Hz in the USA] atop the −48 VDC already on the line.
This is done at the Central Office, or a neighborhood multiplexer called a "SLC" for Subscriber Line Carrier.
In Australia and the UK, the standard ring cadence is 400 ms on, 200 ms off, 400 ms on, 2000 ms off.
These patterns may vary from region to region, and other patterns are used in different countries around the world.
In POTS switching systems, ringing is said to be "tripped" when the impedance of the line reduces to about 600 ohms when the telephone handset is lifted off the switch-hook.
This signals that the telephone call has been answered, and the telephone exchange immediately removes the ringing signal from the line and connects the call.
For landline telephones typically receive an electrical alternating current signal, called power ringing, generated by the telephone exchange to which the telephone is connected.
The ringing current originally operated an electric bell.
Some central offices offer distinctive ring to identify which of multiple numbers on the same line is being called, a pattern once widely used on party line (telephony).


After unpacking the D-Link DNS-320 i checked the performance of the DNS-320 in the Network. All these measurements were done in my home environment so be careful to see them as representative. Werbung
The transfers are initiated from a pc with a onboard gigabit network adapter over gigabit-ethernet with a D-Link DGS-1005D as a switch in between (no other clients active). Two Seagate 500GB 7200rpm-harddrives are used for storing the data in the NAS. The NAS with Firmware 1.00 gets set back to factory settings and the harddrives are formatted before every test which disables all server software except the samba server (for the network shares). I transferred a dummyfile with 1,5GB size once with windows 7 copy functions and once with TeraCopy. In all cases the transfer rates between the two tools didn’t differ.
|ext3 – Single Disks||25MB/s||30MB/s|
|ext3 – RAID 0||24MB/s||36MB/s|
|ext3 – RAID 1||23MB/s||29MB/s|
JBOD got the same results as single disks.
D-Link created a NAS with reasonable performance, even when using RAID. The difference between the different modes is nearly not visible. The user can choose between them with only looking at the data integrity/security and not at the speed.


- complete network discovery and blueprinting, analyzing wireline connections, VLANs, IP network, interconnectivity and operational overview. Blueprints remain an excellent source of documentation for audits, compliance, education, cross-training and reference for future changes, upgrades and improvements.
Most organizations are in a situation where their network and IT infrastructure has been reworked to accommodate business growth and changes, thereby lacking the updates, careful documentation, leaving lack of diagrams, documents and evidence of network topology configuration.
Unilogic systems specializes in discovering and illustrating all aspects of a network infrastructure. When a client engages us for a Network Assessments, we will focus on the following deliverables:
- Equipment layout in Racks, Cabinets, shelves, etc.,
- Power consumption of each device,
- Wireline topology (Layer 1) – device interconnectivity, with type of cable and mechanical connectors,
- Link layer topology (Layer 2) – device link configuration for networking, such as VLANs, Trunks, Access links, etc.,
- Network layer topology (Layer 3) – device IP configuration for networking, such as IP network addresses and routing strategies,
- Network device position in relationship with one another, illustrating data path flows, redundancy, security devices, wireless components, access to datacenter services, etc.
- Where applicable, Virtualization networking, connectivity and interoperation with the physical network.
Unilogic systems goal is to provide comprehensive, thorough, detailed illustration of your network and IT infrastructure, so that network IT infrastructure information can transparently deliver engineers an understanding of operation. Furthermore, leadership may also provide detailed information as evidence to Network Assessors, Compliance Officers, Vendors and Partners who interoperate with your organization.
Maintaining an updated set of network blueprints for your IT infrastructure delivers a level of maturity that places emphasis of consistent review, change management and updates to the network infrastructure, elevating the awareness of current state of operation of the organization’s network, and related security features.


It use to be that all most people used phones for were calls and maybe some text messages, however with the rise of the Smartphone our uses for mobile devices have changed drastically.
We are now more than ever before leaving critical data about ourselves open for taking. Not only do we schedule appointments but we have since used our Smartphones for more productive and time efficient tasks such as mobile banking and corporate email, which in the wrong hands can be very dangerous.
WaveSecure for Google Android is an application that is said to aid us in the event that our mobile device does end up in the wrong hands. This app allows the user to not only back up texts messages and photographs but it goes one step beyond this by locking the device when it senses a SIM card change, also allowing the user to track their phone if it is lost by sending out a GPS signal and locates the phone on a map.
The WaveSecure app also allows for a remote data wipe if locating the phone is out of the question, so that the user can be confident that the data on the device is out of the next user’s reach.


Voice over wireless LAN (VoWLAN, also VoWi-Fi) is the use of a wireless broadband network according to the IEEE 802.11 standards for the purpose of vocal conversation. In essence, it is voice over IP (VoIP) over a Wi-Fi network. In most cases, the Wi-Fi network and voice components supporting the voice system are privately owned.
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Companies Covered (Sales, Price, Revenue, Volume, Gross Margin and Market Share)-
Cisco Systems, Aruba Networks, Zebra Technologies, Ruckus Wireless, Aerohive Networks, Extreme Networks, Huawei Technologies, Avaya, Alcatel-Lucent and Others…..
China has the largest smartphone market in the world, due to which there is tremendous opportunity in the APAC voice over WLAN systems market. Also, NETMARKS which is Japan’s leading network systems integrator, signed an agreement with Colubris Networks (U.S.) to distribute WLAN system to solidify leading voice over WLAN position in Japan.
The leading players of Voice Over Wireless LAN (VoWLAN) industry, their market share, product portfolio, company profiles are covered in this report. The competitive market scenario among Voice Over Wireless LAN (VoWLAN) players will help the industry aspirants in planning their strategies.
Voice Over Wireless LAN (VoWLAN) market report involves an in-depth understanding of Voice Over Wireless LAN (VoWLAN) market and highly delivers market insights based on market intelligence studies. Adhering to industry norms, the report comprises chapter wise factual information spread across 100+ pages. Also, prepared by a panel of seasoned analysts, it offers the client with insightful data that establishes the base to take immediate steps ahead. Nonetheless, Voice Over Wireless LAN (VoWLAN) market offers growth opportunities in the near future exhibited in best information format through this report.
The whole detailed report includes –
- Basic overview of the market
- Voice Over Wireless LAN (VoWLAN) Market by Type
- Voice Over Wireless LAN (VoWLAN) Market by Application
- Voice Over Wireless LAN (VoWLAN) Market by Major players
Voice Over Wireless LAN (VoWLAN) Industry Opportunities, Challenges, Strategies, Industry Verticals & Forecasts” offers detailed coverage of Voice Over Wireless LAN (VoWLAN) Market industry and presents main market trends. The market research gives historical and forecast market size, demand, end-use details, price trends, and company shares of the leading Voice Over Wireless LAN (VoWLAN) Market producers to provide exhaustive coverage of the market for Voice Over Wireless LAN (VoWLAN) Market.
Geographically, the report takes stock of the potential of Voice Over Wireless LAN (VoWLAN) market in the regions of North America including the U.S. and Canada, Latin America including Mexico, Brazil, and Argentina, Europe including the U.K., Germany, France, Italy, Spain, and Nordic, Asia Pacific except Japan (APEJ) including India, China, Thailand, Malaysia, Singapore, and Australia, and the Middle East and Africa including Gulf Cooperation Council (GCC), South Africa, Israel, and Nigeria.
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Table of Contents:
1 Report Overview
2 Executive Summary
3 Key Players
4 Breakdown Data by Type and Application
5 North America
9 International Players Profiles
10 Market Dynamics
11 Key Findings in This Report
The competitive spectrum of the Voice Over Wireless LAN (VoWLAN) market has been dealt with firmly in the report. The vast expanse of this information is certain to help potential stakeholders and plausible new entrants gain an insight about the Voice Over Wireless LAN (VoWLAN) market and the various challenges it presents. The details about the competitive landscape presented in the report may also provide an evaluation of the prominent market vendors, their growth profiles, growth strategies, etc., helping stakeholders in quicker decision-making.
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The signal at 1680 Khz is running a looped message with information on how to prepare for an emergency. The system is capable of live broadcasts, and prerecorded messages are easily uploaded. "This technology will reduce reliance on telephone and cable lines which are at high risk of failure in the event of a natural disaster," the town said in its announcement.
The town allocated $30,000 in the 2012-13 budget for the project and paid $23,500 for the radio and about $7,500 for the antenna, officials said. Both are located at Town Center.


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Video door phone or VDP system is like security to the homes.
The owner can decide who to enter their house. VDP system is fixed just outside the gate, so the visitor can press the bell in the VDP, then it will makes a call to the owner registered mobile application. Then he can attend the video call and can see who is outside the gate. And can also open the gate through the phone.
As VDP is connected to a POE switch where it is connected to the internet.
So the owner can access through the mobile


The design of a fully balanced current–tunable active RC integrator
The design of the active RC integrator presented in this research utilizes a fully balanced technique and current-tunable frequencies to create the active RC integrator and reliable circuit. The circuit is made up of six npn bipolar junction transistors (BJT), six resistors (R), and a capacitor (C), with the fully balanced technique used to make the circuit structure uncomplicated and symmetrical with signal differencing. This approach results in a low number of internal devices in the circuit, making it an attractive option for integrated circuit (IC) development. One of the key features of the fully balanced current-tunable active RC integrator is its ability to be frequency-tunable with bias current (If). This feature enables the circuit to be used in a variety of applications, including filter circuits, communication signal generators, instrumentation signal generators, and various automatic controls. The fully balanced design also ensures that the circuit is stable and robust, even in the presence of device parameter variations. To evaluate the performance of the active RC integrator, simulations were conducted using Pspice.
The results show that a fully current-tunable active RC integrator can be precisely tuned with the active bias to a value consistent with the theoretically calculated value. This demonstrates the efficiency and reliability of the circuit design and simulation method. The Monte Carlo (MC) method was also used to analyze the circuit performance in cases where the resistor (R) and capacitor (C) device had a 10 percent error and the transistor gain (β) was set to an error of 50 percent. The MC analysis showed that the phase shift (degree) and magnitude (dB) of the circuit were stable, and the circuit's performance was not significantly impacted by the device parameter variations. This further demonstrates the robustness and versatility of the fully balanced current-tunable active RC integrator design. Finally, harmonic distortion was evaluated to confirm the performance of the designed and developed fully balanced current-tunable active RC integrator. The results showed low levels of harmonic distortion, which indicates that the circuit is suitable for high-performance applications that require low distortion
Sangyaem, S., Siripongdee, S., Jaikla, W., Khateb, F. (2017). Five-inputs single-output voltage mode universal filter with high input and low output impedance using VDDDAs. Optik, 128, 14–25. doi: https://doi.org/10.1016/j.ijleo.2016.09.113
Mammadovа, M. (2019). Methods for fuzzy demand assessment for it specialties. EUREKA: Physics and Engineering, 4, 23–33. doi: https://doi.org/10.21303/2461-4262.2019.00939
Rasekh, A., Bakhtiar, M. S. (2017). Design of low-power low-area tunable active RC filters. IEEE Transactions on Circuits and Systems II: Express Briefs, 65 (1), 6–10. doi: https://doi.org/10.1109/TCSII.2017.2658635
Upathamkuekool, C., Mahattanakul, J. (2017). Stability analysis of fully-differential active-RC filters with common-mode feedback network. 2017 14th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON). doi: https://doi.org/10.1109/ECTICon.2017.8096331
Oyie, N. O., Afullo, T. J. (2018). Measurements and analysis of large-scale path loss model at 14 and 22 GHz in indoor corridor. IEEE Access, 6, 17205–17214. doi: https://doi.org/10.1109/ACCESS.2018.2802038
Veerachary, M., Khubchandani, V. (2018). Low Source Current Ripple Buck-Boost Converter. 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). doi: https://doi.org/10.1109/PEDES.2018.8707843
Lertkonsarn, S., Sa-ngiamvibool, W. (2022). The development a fully-balanced current-tunable first-order low-pass filter with Caprio technique. EUREKA: Physics and Engineering, 5, 99–106. doi: https://doi.org/10.21303/2461-4262.2022.002406
Gilbert, B. (2018). The current-mode muddle. AEU - International Journal of Electronics and Communications, 83, 398–406. doi: https://doi.org/10.1016/j.aeue.2017.08.009
Wongmeekaew, T., Sa-ngiamvibool, W. (2016). A Fully-Balanced Current-Tunable Integrator with CAPRIO Technique. Przegląd Elektrotechniczny, 3 (92), 136–139. doi: http://pe.org.pl/articles/2016/3/33.pdf
Srisuchinwong, B., Trung, N. V. (1995). An integratable current-tunable R-L oscillator. Proceedings of ISSE'95 - International Symposium on Signals, Systems and Electronics. doi: https://doi.org/10.1109/ISSSE.1995.498051
Kaur, H., Gupta, R., Sharma, S. (2018). Log Domain Integrator using Quasi-Floating Gate MOSFET. Recent Advances in Electrical & Electronic Engineering, 11 (2), 142–148. doi: https://doi.org/10.2174/2352096510666171207163840
Mohan, J., Chaturvedi, B., Maheshwari, S. (2016). Low voltage mixed-mode multi phase oscillator using single FDCCII. Electronics, 20 (1). doi: https://doi.org/10.7251/ELS1620036M
Datta, D., Bhanja, M., Prasad, A., Ray, B., Banerjee, A. (2019). Design of current-mode high frequency linear analog circuit. 2019 IEEE Region 10 Symposium (TENSYMP). doi: https://doi.org/10.1109/TENSYMP46218.2019.8971221
Saif, M. A., Hassan, K. M., Abdelati, A., Ibrahim, S. A. (2019). A 34-fJ/bit 20-Gb/s 1/8-rate Charge-Steering DFE for IoT Applications. 2019 17th IEEE International New Circuits and Systems Conference (NEWCAS). doi: https://doi.org/10.1109/newcas44328.2019.8961251
Kaneko, T., Kimura, Y., Miyahara, M., Matsuzawa, A. (2017). A Wide Bandwidth Current Mode Filter Technique Using High Power Efficiency Current Amplifiers with Complementary Input. IEICE Transactions on Electronics, E100.C (6), 539–547. doi: https://doi.org/10.1587/transele.e100.c.539
Alaybeyoglu, E., Kuntman, H. (2017). A new current mode implementation of the reconfigurable analog baseband low pass filter with cell-based variable transconductance amplifier. 2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS). doi: https://doi.org/10.1109/icecs.2017.8292016
Mohd Sabari, N. D. I. bt, Abu Bakar, F. bt, Azizan, A. bt, Zainol Murad, S. A. (2021). Pseudo-Differential Transconductor Circuit for a Low Supply Voltage Application. Journal of Physics: Conference Series, 1962 (1), 012015. doi: https://doi.org/10.1088/1742-6596/1962/1/012015
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User’s Guide. Available at: https://www.seas.upenn.edu/~jan/spice/PSpice_CaptureGuideOrCAD.pdf
N2222A Datasheet(PDF) 2 Page – STMicroelectronics. Available at: https://html.alldatasheet.com/html-pdf/239945/STMICROELECTRONICS/2N2222A/3894/2/2N2222A.html
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Shenzhen Tangxin Technology Co., Ltd., built up in April, 2003, is a high-tech enterprise that is engaged in professional communications software product development, production, and sales. We have sprung up rapidly in the field of telecommunication by high professionalism and popular technology. Through years' unremitting efforts, we have put out the 'WS Charge Software', 'Tansonic PBX Charge Software', 'Tansonic Phone Recording System', 'Tansonic Mini Call Center system' and a series of products. These products have been widely used in Hotel, Service center, Finance, Electric power, Police, School, Hospital, Aviation, Railroad, Factory and some enterprises.In the course of development, our company has been working together with Shenzhen Cesller Company, and has put out the '3S Call Management Software', 'Group phone call management software', and 'HB Mini call center software', dedicated to the group telephone billing, programming and management. Applying ourselves to offer the phone system settle project for large, medium and small enterprises, and providing on-site installation, debugging, training and after-sales service, .Shenzhen Cesller Co. is one of the earliest manufacturer developing the Group phone PBX, and the Group phone products of HB have exceed the product level in domestic markets. In 1999, Cesller created the Chinese and English display program phone and 'Chinese Group phone' new concepts. Besides, Cesller also developed the China 'IP card group phone PBX' and 'FSK caller ID group phone PBX'.According to different enterprises' demands, Tangxin company has made the single configuration to multiplicity. At present, Tansonic Recording system has USB1 channel, USB2 channel, USB 4channel, PCI card 4 channel, 8 channel, 16channel (4 channel to 128 channel), embedded 8 channel, 16 channel, and digital E1 card. The software version is divided into TX2006 Normal version, TX2006 Standard version, and TX2006 Senior version. The functions include Standard version added Call charge function, Senior version added voice mail and voice prompt function; Normal version with Phone Recording, Monitor real time, Out-going call record, Unanswered call, Incoming call number popup, Business management, Network inquiry, Long-distance management, and Extension record function. As our company has core technique, and products are upgraded after the customer's feedback, we offer software upgraded service forever by free. If you need more information, please contact our company technology department. Tansonic recording products won the CE and FCC certificates in June, 2007, and have been sold into the Occident markets.We regard talent as strong capital. The high-efficient group, made up of outstanding talents and good at cooperating, with good faith, is the strength resource of our enterprise's development. We, relying on the rich technological capability, have already become the domestic famous communication enterprise to offer good quality products. As to special users, our company can offer OEM service. We are always steadfast to follow the tenet of 'Quality is the first, Customer is the highest '. With the high-quality products, good prestige, we serve the masses of users wholeheartedly.


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Question: how far radio call?
Routine radio call from open areas up to 8-10 km, 3-5 km up to the general urban area, there are tall buildings or mountains in the case of blocking, the call will be relatively short distance. When radio call network support distances up to several tens of kilometers. Network is to use a repeater (also called base station or repeater), automatically receive the signal from the radio transmitter, and its zoom and forward. Radio communication network can expand coverage, extended distance calls, open to up to 10-20 km (hand-held radio), or 30-50 km (car radio), the building can cover the basement, underground parking with, fire exits and other serious shielding , usually called the dead area.
Question: What factors affect the distance walkie-talkie call and effectiveness?
1 System parameters:
1) the transmitter output power is stronger, the greater the coverage of the transmitted signal, the farther distance communication.However, transmission power can not be too large, transmission power is too large, not only power, influence amplifier component life, and strong interference, influence others call quality and may have radioactive contamination. National radio regulatory organ of communication devices transmit power are clearly defined.
2) communication equipment to receive the higher the sensitivity, communication from the more distant.
3) the antenna gain in the antenna and matches the machine, typically, the antenna height increases, enhancing the ability to receive or transmit. Handheld walkie-talkie antenna used is generally spiral antenna, its bandwidth and gain than other types of antennas to be smaller, more vulnerable to human impact.
2 Environmental factors: Environmental factors are paths, trees density, environmental
electromagnetic interference, buildings, weather conditions and terrain differences and so on. These factors and other parameters directly affect the signal field strength and coverage.
3 Other factors:
1) battery, when battery power is low, call quality will deteriorate. Serious, there will be noise, thereby affecting the normal call.
2) antenna matching, and machine-frequency band antenna is inconsistent, the antenna impedance mismatch, will seriously affect the distance calls. For users, the switch to the antenna should pay attention to tighten the antenna, the other can not just use the non-manufacturers with the antenna, can not use the machine does not meet the frequency of the antenna.
Question: Will there be use of radio radiation?
Radio designed to meet the Ministry of Information Industry  No. 869 document-related provisions, will not harm the human body, and not close to the body when using the radio call, but the body 5-7 cm from the call.
Question: Can intercom call?
In a network of support conditions, radio can be used to call. However, if only between the conventional single call, the function call can not be achieved.
Question: Why use radio frequency restrictions?
To ensure that the vast majority of users call interference and rational use of frequency resources, the state radio station on frequency of use of the management committee has been divided to provide different industries use the appropriate frequency range. Users to buy radio time, to the local management committee to apply radio frequency.
Question: walkie-talkie antenna Caution?
1 can only use the original or approved HYT antenna. Unauthorized antennas, modified or added accessories antenna may damage the radio or in breach of the Radio Authority's requirements;
2 in use, do not hand pick the antenna;
3. Walkie-talkie antenna can not twist, or power in the launch tube is easy to burn;
4 Do not use a damaged antenna. In the launch, if the damaged antenna contacts skin, may cause your minor burns.
Question: Radio Battery Caution?
Answer: 1. HYT original or approved by the battery;
2 If the metal conductor, such as jewelry, keys or touch cells exposed bead electrode to practice, all batteries can cause damage or personal injury. Careful treatment has been fully charged battery, particularly when it into a pocket, wallet or other metal container, need special attention;
3 charge should be 5 to 40 degrees environment. If you exceed this temperature range, battery life be affected, while the rated capacity may be fully satisfied. Problem: When using the radio voice of the other party to receive intermittent small or voice?
Answer: Check the radio transmitter at the MIC hole is blocked (No, please send repair station maintenance).
Question: How to maintain the radio?
1 radio long-term use, according to health, control knobs and cabinet is easy to get dirty, remove the control knob from the radio, and neutral detergent (do not use corrosive chemicals) and a damp cloth to clean the cabinet. Use such as detergents, alcohol, spray or oil can cause chemical agents such as walkie-talkie surface and shell damage;
2. Gently walkie-talkie, not hand-held mobile radio antennas;
3. Earphone and other accessories when not in use, close the dust cover (if equipped).
Question:What the process of using radio safety precautions?
Answer: 1 in the car with airbags, airbag deployment should not be on the radio range may be involved. If the radio is in the airbag deployment may involve the regional context, once the balloon rapidly, radio may be a great impact with the vehicle injured person;
2 in the potentially explosive atmosphere or where, unless a special certification through the walkie-talkie type radio explosion, or radio must be turned off. In the potentially explosive atmosphere, the spark could cause an explosion or fire;
3 Do not potentially explosive atmosphere to replace the battery or the battery. Installation and removal of the battery may cause contact spark and cause an explosion;
4. Detonators near the blasting area and the region before it can close the radio in order to avoid possible explosion.
Question: U and V segment radio segment What's the difference?
Answer: U / V represent the sets of radio frequency range, U-band frequency range is usually between 400-470MHz; V-band frequency range is usually between 136-174MHz.
Question: U / V segment from the walkie-talkie call Which is better?
Answer: distance calls and walkie-talkies used by the environment. U / V segment of the electromagnetic wave length is not the same machine, transmission losses are not the same, more due to the building inside the city, using the U section of radio is relatively good; if the environment is open, such as marine, wilderness, etc., V segment is relatively radio better


Apple announced the sixth generation of the Apple TV streaming box at the April 20 Spring Loaded event. The new Apple TV comes equipped with a more powerful chipset inside, along with an all-new remote and other features like smart colour calibration. Here’s all you need to know about the new Apple TV and the remote.
Apple TV 4K: Specifications
The new Apple TV 4K is powered by an Apple A12 Bionic chipset. In case that sounds familiar, that is the same custom-made Apple chip that powered Apple phones in the past like the iPhone XS and iPhone XR. The new Apple TV features a six-core design with two high performance and four power-efficient CPU cores along with a quad-core GPU.
The new specifications allow the Apple TV 4K to play HDR videos of up to 4K resolution at 60fps. Further, users can now also stream content directly from the iPhone 12 directly to the Apple TV 4K via AirPlay. Apple has also announced its partnership with FOX Sports, NBCUniversal, Paramount+, Red Bull TV and Canal+ to support HDR content at high frame rates on the new Apple TV 4K.
All about that new remote
Another highlight of the new Apple TV 4K is a new Siri remote controller. Unlike the last-gen Apple TV remote, the new one features a revamped design, that makes it easy to use in the dark. Instead of the flat touchpad in the middle, users will now find a circular direction pad that features five-way physical controls.
The touch-sensitive surface of the direction pad also lets users swipe on it to navigate through the Apple TV 4K UI (user interface). Running their fingers around the circular ring, users will also be able to scrub through the content they are watching, similar to the experience of the older iPods. Additionally, the new remote also gets a dedicated mute and power button, while the Siri button has been moved to the side of the remote now.
The Apple TV 4K also gets a new colour calibration feature that will beneficial for those in the Apple ecosystem. iPhone users will be able to hold up their phones in front of the Apple TV to colour calibrate it, making use of the phone’s sensors to colour calibrate the screen to an extent. However, this will not deliver results as good as a professionally calibrated screen.
Pricing and availability
The new Apple TV 4K will be available starting at Rs 18,900 from the Apple website, a nearby Apple Store or the Apple Store app. Apple TV 4K is also available through Apple Authorised Resellers and select pay-TV providers. Customers can order the new Apple TV 4K beginning Friday, April 30, with availability beginning in the second half of May in more than 30 countries and regions, including the US.
The new Siri Remote will be available separately for Rs 5,800 and will be compatible with the previous-generation Apple TV 4K and Apple TV HD. For the first time, AppleCare+ will be available for Apple TV, providing three years of technical support and additional hardware coverage, including up to two incidents of accidental damage protection every 12 months


Vemail - send voice emails to your friends
|Here's a small program that will allow you to
easily send voice messages to your friends and family. The download
was small and the install was easy. I had to go into the options to set it
up to use my ISP's SMTP server. After I did that it worked very well. I
started playing around with the different codecs it uses to record the
message and had some trouble getting it to record good voice messages. I
think you are better off leaving those set to the default settings.
Once it's set up, the program is very simple to use.
Website - Download - Freeware
Quote from the website - Vemails are much faster than typing. They improve electronic communications by letting people speak rather than type. You will also find Vemails more personal because voice is much easier and natural than typed text. The software is very easy to use and in a short time you can be quickly sending Vemails where in the past you would have spent a long time typing.


What is RFID?
RFID is simply Radio Frequency Identification.
“Radio Frequency Identification is an automatic identification method, relying on storing and remotely retrieving data using devices called tags.”
RFID is similar to bar code technology but uses radio waves to capture data from tags, rather than optically scanning the barcodes on a label. RFID does not require the tag or label to “in line of sight” to read — that's one of the key characteristics of an RFID system.
How does an RFID system work?
For RFID systems to work the following components are essential: -
- Tag (Passive, semi passive or active)
- Reader (also known as an antenna or integrator)
- Software (also known as middleware)
Information is sent to and read from RFID tags by a reader using radio waves. In passive systems, which are the most common, an RFID reader transmits an energy field that “wakes up” the tag and provides the power for the tag to respond to the reader. In active systems, a battery in the tag is used to boost the effective operating range of the tag and to support additional features over passive tags, such as temperature sensing. Data collected from tags is then passed through communication interfaces (cable or wireless) to host computer systems in the same manner that data scanned from bar code labels is captured and passed to computer systems for interpretation, storage, and action.
What is an RFID Tag?
RFID tags come in many shapes and sizes each suited to a specific application, but all RFID tags can be generally grouped into two main categories, regardless if they are encased, a sticky label or just a solid button like tag.
RFID tags are either “passive” (no battery) or “active” (self-powered by a battery). RFID tags also can be read-only (stored data can be read but not changed), read/write (stored data can be altered or rewritten), or a combination, in which some data is permanently stored while other memory is left accessible for later encoding and updates.
Passive RFID Tags
Passive RFID tags have no internal power supply. An electrical current induced in the antenna by the incoming radio frequency signal provides just enough power for the integrated circuit (IC) in the RFID tag to power up and transmit a response.
RFID tags communicate in various ways with the RFID reader. The aerial (antenna) has to be designed to both collect power from the incoming signal and also to transmit the outbound signal.
Lack of an onboard power supply means that the passive RFID tag can be quite small: commercially available products exist that can be embedded under the skin. As of 2006, the smallest passive RFID tag measured 0.15 mm × 0.15 mm, and are thinner than a sheet of paper (7.5 micrometers).
Passive RFID tags have practical read distances ranging from about 10 cm (4 in.) (ISO 14443) up to a few meters (EPC and ISO 18000-6) depending on the chosen radio frequency and antenna design/size.
Due to their simplicity in design they are also suitable for manufacture with a printing process for the antennas. Passive RFID tags do not require batteries and can be much smaller, and have an unlimited life span. Simple laboratory printed polymer tags operating at 13.56 MHz were demonstrated in 2005 by both PolyIC (Germany) and Philips (The Netherlands). If successfully commercialized, polymer tags will be roll printable, like a magazine, and much less expensive than silicon-based tags. The end game for most item level tagging over the next few decades is that RFID tags will be wholly printed - the same way a barcode is today - and be virtually free, like a barcode.
Active RFID Tags
Unlike passive RFID tags, active RFID tags have their own internal power source which is used to power any intergrated circuits that generate the outgoing signal. Active RFID tags are typically much more reliable than passive tags due to the ability for active tags to conduct a "session" with a reader.
Active RFID tags, due to their onboard power supply, also transmit at higher power levels than passive tags, allowing them to be more effective in "Radio Frequency challenged" environments like water (including humans/cattle, which are mostly water), metal (shipping containers, vehicles), or at longer distances. Many active tags have practical ranges of hundreds of meters, and a battery life of up to 10 years. Some active RFID tags include sensors such as temperature logging which have been used in concrete maturity monitoring or to monitor the temperature of perishable goods. Other sensors that have been married with active RFID include humidity, shock/vibration, light, radiation, temperature and atmospherics like ethylene.
Active tags typically have a much longer range (approximately 300 feet) and larger memories than passive tags, as well as the ability to store additional information sent by the transceiver.
What is an RFID Reader?
An RFID reader is basically a radio frequency (RF) transmitter and receiver, controlled by a microprocessor or digital signal processor (DSP). The RFID reader, using an attached antenna, captures data from RFID tags, and then passes the data to a computer for processing. As with tags, readers come in a wide range of sizes and offer different features. Readers can be affixed in a stationary position (for example, beside a conveyor belt in a factory or dock doors in a warehouse), portable (integrated into a mobile computer that also might be used for scanning bar codes), or even embedded in electronic equipment such as print-on-demand label printers.
What is RFID Software (middleware)?
So far your RFID system is communicating in radio waves, so software is used to decipher the radio waves into logical terms.
This software can either be separate from your RFID Reader and be stored on a PC or laptop, or it may be integrated into the RFID Reader as with portable devices such as the Datalogic Jet.
This software is like any other piece of software and variations are limitless.
What RFID Frequency should I use?
The RFID frequency you should use for a particular RFID application purly depends on the application and the environment in which the RFID
Low Frequency (LF) - Low Frequency range 70 – 150khz
- Animal tracking/husbandry
High Frequency (HF) - High Frequency 13.56MHz
- Tote trackng conveying systems
Ultra High Frequency (UHF) - Ultra High Frequency 866Mhz
Call us and we will be able to advise which RFID frequency would be best suited to your application requirements.
What can RFID systems be used for?
The full potential of RFID as not yet been explored, typically RFID systems are used to:
- Supply chain management
- Membership admission/access control
- Work in Progress (WIP)
- Vehicle Tracking
- Asset Tracking
RFID can be also used in the following areas: -
Keeping track of any production process is key in the manufacturing industry. Whether tracking car bodies in a production plant, monitoring an engine build, or simply adding ingredients in food production.
RFID is well established in the manufacturing industry, and as a result, a wide range of tags are available, specifically designed for high temperature applications, washing facilities and encapsulation into plastics enable them to work in the harshest environments found in the manufacturing industries.
In addition all the major industrial bus networks are available for interface purposes enabling you to seamlessly integrate RFID technology into your processes.
RFID can help with: -
- Pallet tracking
- Part Traceability
- Production line processing
- Robot Cells and Automation Systems
Having the ability to securely track and trace documents, parcels and products throughout the world has become more significant.
Postal and courier companies operate within highly complex distribution chains on a daily basis and face increasing pressure to improve efficiencies. Manufacturers are demanding more effective tracking of their reusable assets such as trays, pallets, roll-cages, totes and kegs in order to reduce cost and improve return on the investment for those assets. RFID can help!
RFID enables Postal and courier companies to accurately pinpoint which consignments have passed through which depots and when, enabling them to easily produce reports for their customers.
RFID can help with: -
Accurate identification and tracking of goods is essential in today's highly competitive retail market.
More than ever before, there is pressure on manufacturers, distributors and retailers to maximise efficiency, minimise cost and provide the best possible value for the end-consumer. Whether it’s tracking wooden or plastic pallets, or simply monitoring the flow of parcels through a distribution hub.
RFID can help with: -
In today’s fast moving world “time is money” and efficiency is the key. In many companies asset tracking is a very important part of the day-to-day running of an office. Knowing where assets, such as people, furniture, documentation, telephones and IT equipment, are can be crucial in an efficient office environment.
Using RFID can help with managing the control of the assets complete with historical information on here the assets have been etc. on the “tagged” part.
Tags are available in a variety designs for specific applications.
RFID can help with: -
For more information on where RFID Technology is being used visit Wikipedia


Introduction in the technology and how it works
OPC is the industry standard technology for communication of process values and events in industrial communications. It connects devices, machines and systems from different manufacturers using the same interface. OPC server adds remarkable amount of value for device, machine or system, as it reduces any integration or application software development costs. Similarly OPC clients made for one OPC server can be connected to any other OPC server without time consuming customization.
Technosoftware GmbH offers on-site training for companies looking to train groups of employees in the OPC Technology while minimizing costs. Technosoftware GmbH offers customized training for classic OPC specifications like OPC Data Access and OPC Alarms&Events but also for the OPC Unified Architecture. Whether you need to implement an OPC Server or OPC Client or just need to integrate OPC technology in your projects – Technosoftware GmbH can offer a customized training package. Whether you are an automation professional, IT personnel, integrator, engineer, operator ore just someone who is responsible for data connectivity within process control and manufacturing, Technosoftware GmbH delivers the right training package, from beginner to advance group training.
Technosoftware GmbH was founded in 2011 and is specialized in software consulting and development services for technical and industrial applications based on OPC and offers also products in this area. During his time at Technosoftware, the founder of Technosoftware GmbH was involved in the design and development of many software products with OPC connectivity and has over 20 years extensive knowledge about OPC. Based on this expertise, the OPC UA SDK .NET product line was released in 2012, which focuses on the pioneering OPC UA technology, but also provides support for the classic OPC specifications such as OPC DA, OPC AE and OPC HDA.
Whether Design or development of an OPC server or Client, integration of the OPC technology into existing systems or the execution of customized training courses Technosoftware GmbH supports you individually within all ranges of the OPC technology:
- Communication Modules
- Measurement Systems
- Condition Monitoring
Our main activities are:
- Consulting from the analysis to the implementation; Manufacturer and industry independent
- Consulting, Design and Support Services regarding OPC based solutions
- Development of OPC server and Clients according to your desires
- Service and Support for OPC based products
Our services cover:
- Realization of special OPC servers
- Consultation during design of your OPC architecture
- Consultation during development of servers and clients
- Analysis of communication problems between OPC server and clients
- Implementation of gateway products e.g. between XML-DA and DA
- OPC connection to standard components e.g. SPS, data bases, etc.
- Development of special OPC Clients, e.g. for process value archiving over OPC
- Consultation with the demarcation from OPC to other technologies and standards
- Consultation when using OPC in C++, VBA, NET, Web applications
- OPC DA, AE, HDA, XML-DA, UA and OPC .NET 3.0 (WCF)


Welcome to WMTel.net, home of WMTel, a growing wireless internet company located in Woolstock, Iowa. We offer low cost high speed internet service using WiMAX technology (not satellite) that isn't limited to "in town" customers only. We also have our own in-house tech support and pride ourselves on customer service. Check out our site and give us a call today!
Our office will be closed Monday July 3rd and Tuesday July 4th. As always, if you are having trouble getting online, please call us at 1-866-369-6835.


Quickly eliminate cabling with secure wireless.
The LongView® Wireless extender simplifies A/V installations by eliminating the need for cabling and expensive PCs at each remote location. The extenders provide quick, simple installation with no software to download or controls required.
Connectivity between computer-based audio/video sources and display devices is quickly realized, including LCDs, monitors, plasma displays and projection devices. Audio, video and PC content is transmitted wirelessly from the source computer to the output device utilizing a unique proprietary compression engine. The transmitter and receiver process analog video in a range of 150 feet through walls and up to 300 feet line of sight.
Its industry-standard design makes the LongView Wireless extender compatible with virtually any PC, display technology and operating system. Radio transmission begins instantly once the transmitter and the receiver are plugged in. The LongView Wireless extender also features a user-friendly on-screen display (OSD) for managing connectivity, making adjustments and tuning the audio/video settings.
Features and Benefits
- Plug-and-Play Installation – Quick, simple installation without making long cable runs; no software to download or controls required; and 150 feet through walls and up to 300 feet line of sight
- Wireless Video – Up to 30 frames per second, XGA resolution (1024x768)
- Transmitter – Connects to the computer making it a broadcast source (perfect for digital signage, presentation or classroom applications); the use of locally wired monitor, keyboard and mouse is supported
- Receiver – Connects directly to the output device leaving it free of unsightly cabling; extended audio speakers, as well as keyboard and mouse, can be connected at the remote location if desired
- Easy Setup and Adjustment – Comprehensive auto setup quickly determines and establishes optimal settings for content being transmitted; the OSD menu is an intuitive tool that puts adjustments directly into the user's hands
- Omni-Directional Antennas – Enable the transmitter and receiver to find each other regardless of their location
- Secure Connection – Eliminates the risk associated with many wireless products because of three levels of security which include: AES encryption, proprietary 802.11a link layer protocol and proprietary video compression
LV 3500 Wireless - Front
|Height||1.75 in. (44 mm) |
|Width||3.85 in. (6.25 mm) |
|Depth||5.25 in. (133 mm) |
|Weight||2.00 lbs. (.91 Kg)|
|Operating Temperature||32° to 104°F (0° to 40°C)|
|Storage Temperature||- 4° to 122°F (-20° to 50°C)|
|Operating Voltage||100-240 VAC |
|Power Frequency||50/60 Hz |
|Input Power||12 VDC @ 1A |
|Computers||Most standard IBM compatible computers (Macintosh is not supported at this time)|
|Video||VGA (640x480), SVGA (800x600), XGA (1024x768)|
|Peripherals||PS/2 keyboard, PS/2 mouse, extended speakers|
|Encryption||AES encryption, proprietary 802.11a link layer and proprietary video compression|
|Antenna||Two 2dB omni-directional (included)|
|Distance||300 ft. (91 m) line of sight, 150 ft. (46 m) through walls|
|Approved Agency||Standards FCC Class A, UL, cUL|
|Longview Wireless Extender – point-to-point VGA extender (300 feet)||LV3500W|
Note: The LongView Wireless extender solution is available in the U.S. and Canada only.


Elecomms was established in 2010 by Robert Barnes as a small privately-owned company based in Uckfield East Sussex, Elecomms is a well-established structured cabling installations company specialising in providing custom data cabling and Wi-Fi solutions small to medium sized businesses primarily in East Sussex, Surrey, Hampshire, West Sussex and Kent.
Voice & Data Structured Cable Network
Alongside design and supply, we can also provide new Cat5/6 cabling installation as well as reconfiguring and testing your existing network cabling.
All our network cabling installations are backed by our installation warranty and the manufacturer warranties. For any equipment we supply we will also provide detailed test results and outlet location diagrams to show your system is working to specification.
Elecomms has extensive experience of deploying high quality and reliable wireless technology in the larger, unusual shaped and Graded listed properties.
Our wireless network solutions extend the reach of the traditional single Wi-Fi router supplied by BT, virgin, TalkTalk and the like, to a Wi-Fi system that will cover your whole home regardless of the property size construction or shape and deliver increased stability and roam-ability within the desired environment.
Elecomms has a proven track record of delivering high end household structured wiring solutions for the "smart home". Elecomms data services takes you from initial design though to neatly and discreetly installing the cabling to final testing and deployment of the network with all the kit needed to run the completed network we will then configure the system to run in the best and most efficient way it can to suit your households' requirements.
Ethernet Network Overview
Elecomms are experienced in providing and installing CCTV systems to business premises.
We have supplied systems for many shops, pubs, offices, factories and hotels over the years. Elecomms have links with major UK security distributors in the UK and are able to tailor a system to your company's requirements and budget.
Elecomms are experienced in providing and installing CCTV systems of all sizes and complexity for the domestic market. We have links with major UK security distributors and are able to tailor a system to your requirements and budget. Progress advances very quickly in the field of CCTV electronics, systems are being updated all the time; we pride ourselves in being able to offer the latest CCTV solutions.


FirstNet - Signed into law on February 22, 2012, the Middle Class Tax Relief and Job Creation Act created the First Responder Network Authority (FirstNet). The law gives FirstNet the mission to build, operate and maintain the first high-speed, nationwide wireless broadband network dedicated to public safety. FirstNet will provide a single interoperable platform for emergency and daily public safety communications.
Iowa's FirstNet Initiative: “Iowa, FirstNet and AT&T have formed an innovative public-private partnership to expand coverage, enhance capacity and launch new devices and applications for first responders,” Lt. Gov. Gregg said. “This network is designed specifically for Iowa’s public safety professionals, by Iowa’s public safety professionals. We wanted our brave men and women to have the best. This solution will help us continue to build a better Iowa by ushering in a new wave of innovation for Iowa’s first responders.”


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If you’re looking for a professional enterprise technology services, then you got to trust Applied Technology Services. ATS has been a leading provider of IT professional service for government offices. Visit site today for more info.
Applied Technology Services (ATS)
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Baltimore, MD 21234
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