Have you seen “eduroam” as one of your internet connection options here on campus?
UNCG’s Information Technology Services has begun broadcast of this new supplemental wireless service on campus.
“eduroam” (education roaming) is a secure, worldwide federated roaming wireless access service developed for the research and education community. The eduroam wireless service allows UNCG students and researchers to use the same wireless configuration locally as well as remotely at eduroam member institutions in this country and around the world. Furthermore, visitors traveling to our campus from other participating universities can use their home institution’s login credentials to access secure wireless services at UNCG without the need to apply for a UNCG computing account.
Donna Heath, Associate Vice Chancellor for Systems & Networks, says, “The new eduroam service will provide essential infrastructure for research by seamlessly connecting our faculty and students to critical resources and partners worldwide.”
Benefits of eduroam include getting immediate wireless access when travelling to participating institutions, access through a secure wireless protocol, and increased bandwidth and fewer restrictions than are often afforded to authenticated connections over guest services.
It’s an attractive option because you can use your own UNCG credential to log in and access wireless services at any eduroam member institution, says Amie Mabe (ITS). The difference is that you log in with your full email address (firstname.lastname@example.org) instead of your username.
Rob Gorrell (ITS) adds that the traditional UNCG-Faculty/Staff/Student service and the new eduroam service both deliver the same experience while here on campus. “However, eduroam delivers the same service plus more. So why not have more, right? By choosing to use eduroam, you have automatically set yourself up for instant mobility – opening up the possibilities of free, easy and secure internet access while traveling at remote participating institutions.”
Clemson and The University of Tennessee – Knoxville are two nearby participating universities. Gorrell says Duke and N.C. State are formally doing their own internal testing and may shortly adopt it as well.
UNCG is the first school in the UNC system and in the state to put eduroam into production.
eduroam is broadcast throughout the majority of wireless locations on the UNCG campus (http://its.uncg.edu/Network_Services/Wireless/Locations/) and at thousands of locations both nationally and internationally. View maps of where eduroam is available at https://www.eduroam.us/eduroam_us_institutions and https://www.eduroam.us/eduroam_international_map.
For more information, including setup instructions, go to http://its.uncg.edu/Network_


The Cisco Networking Academy® Introduction to the Internet of Everything course provides an overview of the concepts and challenges of the transformational IoE economy. The course discusses the Internet and its evolution to the interconnection of people, processes, data, and things that forms the Internet of Everything.
The course introduces the concept of a network foundation connecting billions of things and trillions of gigabytes of data to enhance our decision making and. Course modules describe how IOE drives the convergence between an organization’s operational technology (OT) and information technology (IT) systems, and the business processes for evaluating a problem and implementing an IoE solution.
© Copyright C.T.T.C Cisco Academy & Support Center 1997-2015,
All rights are reserved.


Had a new people bring this up, when trying to login to a Synology NAS the message “Because the encryption key is invalid, the password has been transmitted as plain text without encryption.” is received.
The basically boiled down to trying to login via https on a non-https port, the default ports for the NAS are:
ip:5000 - http
ip:5001 - https
Attempting to connect to port 5000 using https will bring up this message, use port 5001!


DECT 6.0 Expandable Cordless Digital Answering System with 2 Handsets - Panasonic KX-TGD222N
Sale Price: $59.95
This product has Free Shipping
This Panasonic KX-TGD222N expandable cordless phone system features talking caller ID, which uses text-to-speech technology to announce who's calling from across the room. The digital answering system holds up to 17 minutes of messages.
- Expandable phone system
- Includes a cordless base station plus 2 cordless handsets and 1 charger and is expandable up to 6 handsets (optional additional handset model KX-TGDA20, not included).
- DECT 6.0 Plus digital technology
- Provides interference-free, secure calls and clear sound.
- Digital answering system
- Features up to 17 minutes of total record time. Remote operation lets you retrieve recorded messages from the handsets.
- 1.6' white-backlit handset display
- With 103 x 65 pixels offers information in easy-to-read detail. The handsets' amber-illuminated keypads simplify operation.
- Call-waiting caller ID
- Displays the name and number of incoming calls, even if you're already on the phone, and remembers up to 50 callers for convenient callback.
- Talking caller ID
- Utilizes text-to-speech technology to announce caller ID information in-between rings, so you can clearly hear who's calling from across the room.
- Compatible with T-Coil hearing aids (not included)
- To accommodate hearing impairments.
- Up to 3-way conference-call enabled
- So you can enjoy group phone conversations.
- Speed dial
- Lets you call frequently dialed numbers with just 1 touch. The phone book stores up to 100 items for simple recall of contacts.
- 7-step speakerphone
- Enables hands-free phone calls. The 15 ringer patterns make it easy to personalize the phones' sounds.
- Call block
- Allows you to eliminate future irritating and unwanted calls from up to 60 numbers. If a blocked number calls, they receive a busy signal.
- Wake-up alarm
- Helps keep you on schedule.
- Intelligent eco mode
- Automatically lowers the power consumption when you use 1 of the handsets close to the base to help extend the available talk time.
- Wall-mountable charger and base unit
- Enable flexible placement options.
- ENERGY STAR certified
- Assures a high standard of energy efficiency.
- Call waiting and caller ID require additional service through your local phone company.


Keywords: copper price, wire and cable, influence
Recently, copper prices have been falling for days, from around RMB75,000/ton to RMB63,000/ton, a drop of nearly 16%. So will this affect cable prices? The answer is yes, because copper is the largest part of the cost of the raw materials required for cables.
The wire and cable industry is an industry that relies heavily on raw materials, especially the dependence on copper has never changed over the years. As we all know, the high price of copper, coupled with the special order and contract issues in the cable industry, cause copper prices to increase or decrease, which is unfavorable for wire and cable manufacturers.
In the cable industry, whether it is copper or aluminum, both constitute the main raw materials of the wire and cable industry. According to relevant statistics, the copper used in wire and cable accounts for about 60-70% of the national copper consumption. The amount of copper used in cable products is roughly: power cables account for about 20-30%, electrical equipment wires and cables account for about 28-30%, winding wires account for about 26-29%, communication cables account for about 5-7%, Other cables account for about 4-5%.
With the development in recent years, China’s domestic wire and cable manufacturers are under heavy cost pressure, because copper, aluminum, plastic and other raw materials account for more than 80% of the cost of wire and cable, plus energy prices, transportation costs and The rising cost of human resources has made these enterprises even worse. In recent years, due to the soaring market price of copper ingots in the world, the cost of domestic wires and cables has skyrocketed, and almost all cable companies are facing a serious cost crisis.
So, is the opportunity of the copper price falling rapidly and then rising again, is it the best time to purchase?


Network Engineer - Cisco Environment - City Centre
Salary: £250 - £300 per day
Network and Communications Engineer - Cisco Environment - Long Assignment
Network Engineer required to join our client in Glasgow City Centre. This will be for an initial 6 months, with a very high chance of extension.
You will have overall responsibility for the support, implementation, operation, and administration of Cisco technologies for the Enterprise. You will have demonstrable experience supporting medium / large network infrastructure and be adept to network implementation within Enterprise environments.
You will ensure the optimisation of network services, processes and components. You will be expected to deal with routine situations, incidents and problems. The ideal candidate will be forward thinking, capable of working independently as well as in a very skilled team. As a result, you must demonstrate in depth technical knowledge of Networking, Communications and Security technologies.
** Design, configuration and support of EIGRP / RIP / BGP / OSPF
** WAN: Cisco 800 / 1800 / 1900/ 2800 / 3800 Routers
** Design, configuration and support of VLAN / HSRP / STP, vPC
** Configuration and deployment of LAN & WAN incorporating Cisco 500 / 2900 / 3500 / 3600 / 3700 Switches
** Administration of Nexus 7K / Nexus 5K
** Design and configuration of Cisco Unified Communications Manager 10.5x, Unified Contact Centre Express 10.5x / Cisco IP phones
** Knowledge of call signalling protocols: H.323, MGCP, SIP and SCCP
** MGCP & SIP Voice Gateways
** Solid experience of IPsec, SSL, 802.1x, LEAP, EAP−TLS, EAP−TTLS, Radius & TACACs + protocols
** Administration and Support of Cisco ISE
** Administration and Support of Cisco ASA NGFWs and NGIPS
** Configuration of IPSEC, Cisco SSL & Cisco Any Connect VPNs
Network Management Skills
** Cisco Prime Infrastructure and SolarWinds NMS Troubleshooting
** Troubleshooting of Wireshark & NetFlow
** Detection of network intrusion attempts using Cisco 5545s Fire Power Module
Unified Wireless Systems
** Design, configuration and support for Cisco WLC 5508
** Administration, deployment of Cisco 3602i & 3802 Wireless Access Points and 897VW ISRs
** Support for ISDN, SIP, ADSL, PSTN, Leased Line, Frame Relay, ATM, National Ethernet, Metro Ethernet
As well as the technical skills, it is important that you are a self-starter and confident in your own ability - taking ownership and responsibility for tasks within projects. This is an excellent opportunity to work within a large Enterprise environment on a long-term basis, taking you over the Christmas period and well into 2019.
For more information please apply and/ or call Michael Burrell, Infrastructure and Support Consultant at Cathcart Associates.
Network Engineer / Network Architect / Network Administrator / Network Analyst / Network Manager / Network Monitoring / LAN / WAN / Cisco / Routing / Switching / Infrastructure / Contract / Edinburgh / Glasgow / Falkirk


Data centre specialists Airedale International and Asperitas will hold a head to head debate later this month over whether air or liquid-based solutions will be central to the future of the sector.
The two companies will take part in the online discussion from 3pm on Wednesday October 14 to talk about how different technologies can address some of the most pressing environmental and operational issues facing data centre cooling.
Representatives for the two companies will engage in a one on one debate based – perhaps bravely – on the format currently used for the US presidential election campaign. A key point of the discussions will be on the issue of whether air or immersion cooling will dominate a new generation of data centre designs.
A core point of discussion during the session will be the claim that immersion cooling is a more energy efficient technology that will usurp air-based systems as the preferred option for large data centres by the end of the decade.
Matt Evans, technical account manager of UK-based Airedale and Asperitas founder and chief executive Rolf Brink will each take different sides in the discussion. Airedale International marketing manager Darren Farrar said that data centre specialists, much like the cooling sector as a whole, were having to innovate to address issues of performance, as well as energy efficiency.
Mr Farrar said that it was true that liquid cooling technology was emerging as an important technology for data centres, but this did not make air-based solutions redundant.
He added, “As a traditional air-cooled system provider, we might be looking over our shoulder, but we are confident that with continued innovation, we will not be displaced as the technology of choice within most facilities.” Rolf Brink said that there had been a revolution in data centre cooling based on the idea of immersing IT equipment in dielectric fluid. Mr Brink said that these type of solutions would be vital to effectively address the levels of heat generated by high chip density units.
He said, “Immersion cooling enables simplified data centre design and reduces energy costs, so we believe immersion cooling will be the clear winner in this debate.”
Consultants, contractors and other interested parties can sign up to take part in the event at www.airedale.com/coolwars


Nate discusses the new Cisco Multigigabit technology initiative to address bandwidth in Wave 2 of wireless standard 802.11ac.
Nate discusses the new Cisco Multigigabit technology initiative to address bandwidth in Wave 2 of wireless standard 802.11ac. Included in the discussion is NBASE-T and the speeds it’s capable of achieving, as well as products that will allow us to utilize the new technology.
Hello, I'm Nathan. Today we're going to talk about Cisco Multigigabit Technology. If you remember, in a previous video, we talked about Wireless AC, and Wave 2 - some of the things that we could expect, some of the problems that we could run up against. Things like having enough bandwidth to our APs to support a 6.8 gig connection. So what can we do about that? I had mentioned at the end of the video, so we're going to get into that this time.
So Cisco Multigigabit. What does that mean to us? It's a new initiative to introduce products that will address that issue - that will allow us to get more than just that 1 gig speed that most people have in their closets or in their infrastructure. How can we leverage that and still use our preexisting infrastructure, rather than having to rip everything out and replace it?
Well, it's going to capitalize on something called NBASE-T. NBASE-T is a new initiative that's going to allow us to do those things. It's a technology that will enable us to use stretches of hundred meter cable of CAT5e and go beyond that 1 gig threshold into 2.5 gig, 5 gig, and so on. You see over here, these are the speeds that we are going to be able to achieve. So we start at 100 megs, but we can go to 1 gig, 2.5 gig, 5 gig, and 10 gig. Most of these speeds achievable over CAT5e. You still need your CAT6a for your 10 gig or better.
But what kind of products are we going to have to use this technology? Is it going to be current products or are there going to be new things coming? Well, it's going to be new things. Currently planned from Cisco, and this is a Cisco-specific technology at this point. I don't anticipate it will stay this way. They've already been working in making it an industry standard, but I'm sure that'll take time. For now, these are the things that we can expect.
There will be a blade for the Catalyst 4500e. There will be a 48-port blade, and of those 48 ports, 12 of them will be Mulitgigabit. So, it's not a full blade offering at this point, but there will be ports on there that will allow this. And it is an autosensing technology as well. So whatever you have plugged into that port, it will jump to the speed that's applicable.
There will also be two new 3850s coming. A 48-port and a 24-port, which will have 12 and 24 ports available for Multigigabit. Then there will be a 3560c, a compact switch. They didn't give port counts on this one yet. Information is kind of sketchy at this point. We don't even have part numbers entirely fleshed out or available, but there will be two Multigigabit ports even on the compact switch.
So at this point, like I said, there's not a whole lot of information on it, but by searching Cisco Mulitgigabit or NBASE-T on the Cisco website, you can learn quite a bit about it. What they intend to do with it, and that we can expect it sometime later this year. Hopefully this was helpful. As always, if you have additional questions, you can contact us and let us know.


7'' Portable LCD Test Monitor Ahd DVR for HD-TVI, AHD,CVBS,CVI Cameras
(supports FHDTVI/AHD signal;video delay time less than 0.1s)
DS-906 all- in- one 7 ”AHD monitor DVR with HD record and display function is new generation product with four mixed coaxial from 3rd Eye Electronics Co., Ltd. This product is compatible with FHDTVI, AHD,CVI,CVBS and it can access FHDTVI, AHD,CVI,CVBS signal. Its video play time is less than 0.1second. And it integrates multinomial IT high-tech. It can achieve local HD surveillance video independently, can also be used in camera debugging and installation, and outdoor HD monitoring operations.
It can be widely used in security precautions and monitoring of the family, field, public security, military, medical, equipment and other areas.
This item is designed without sunshade cover. It is easy to use it for multifunction. And it is still with Silk-screen button for good touch feeling. Professional design makes this item more feasibility.
l Meet FTVI, AHD signal standard specifications, support TVI, AHD, CVI,CVBS four mixed signal access.
l Supports Smart264 encoding. Lower bit rate with same resolution; Longer recording time with same hard disk.
l Long-range coaxial cable transmission, support the maximum 800 meters TVI 1080P signal reliable transmission.
l Supports HD 5MP signal real-time preview video; video play time less than 0.1s;
l Full view 170 ° 1024x600 HD screen.
l Built-in 7000mAh large capacity battery.
l Supports 128G TF card.
l Supports 10 languages.
l Supports wide voltage 5-12V input.
l Full number of channels support HD 5MP signal preview.
l Support recording files packed by time.
l Supports recording, taking photos and playback.
l Supports 12V power supply to power the camera.
1024 X 600 Pixel
Full view 170 °
300 cd/square meters
Video transmitting range
800 meters for TVI 1080P signal
Video delay time
Video LED control output
Video Storage Pixels(16:9)
Video storage Format
Audio Frequency Range
Audio Compression Format
Photo storage Format
JPG 5.0 mega :2560(H)×1920(V)
External SD card
TF card 2-128GB (Optional)
128GB Recording time
Windows & Mac OS
Built-in Li Battery
DVR main part
118mm x 66mm x 17mm
DVR main part
1 x 7inch All-in-one AHD DVR monitor 1 x AC adapter 1 x User manual 1 x USB cable 1 x AV-OUT cable 1 x Package color box


Hearing aids can benefit most people with hearing loss, from the very mild to the most severe. They decrease the difficulties and frustrations often associated with hearing loss by improving your ability to listen and communicate effectively. Hearing aids reduce stress and allow you to focus on your everyday life activities. Today’s advanced technology has helped millions of hearing impaired individuals lead fuller, richer lives.
Modern hearing aids can automatically handle a variety of listening situations, and are customized for the specific needs of each individual. The hearing aid analyzes and adjusts incoming sounds millions of times per second to ensure clarity of speech, and reduce the interference of background noise. Each new generation of hearing technology takes advantage of new research and faster computing to continually evolve and improve. If the hearing loss increases over time, we can appropriately reprogram the hearing aids to accommodate those changes.
- State-of-the-Art 100% Digital Hearing Aid Technology
- Direct Cell Phone and Television Streaming
- Rechargeable Options
- Extended Wear, Invisible Options


ODU 600 – Aviat Microwave Radio (Outdoor Unit)
Our ultra-high capacity split mount microwave radio
The Aviat ODU 600 is a next generation, universal outdoor unit (ODU) for split-mount applications, incorporating latest ASIC technology to combine ultra-small size and weight with low power consumption, and smooth evolution to ultra-high capacity by supporting up to 4096QAM and 110/112 MHz channel spacings.
ODU 600 is compatible with Aviat Eclipse and CTR indoor platforms, including backwards compatibility with already deployed hardware and software to facilitate easy introduction to existing networks.
ODU 600 is a high capacity ODU that meets the capacity demands of the future in a compact footprint.
ODU 600 benefits
- Smaller antennas: antennas represent the largest cost component of a microwave system. Using high power radios like ODU 600 can reduce total cost of ownership of microwave by up to $30,000 over 5 years
- Future proof – ODU 600 meets capacity demands of the future by supporting up to 4096QAM with 112MHz wide channels for a total throughput of 850Mbps in a single unit
- Smaller, lighter, and easier to manage – our new ODU 600 has reduced size and weight and is 75% smaller than previous ODU 600 versions. In addition, our new ODU 600 has 70% reduction in number of product variants than previous ODU 600 versions for lower tower profile/cost and lower shipping and installation costs
- Backwards compatible – ODU 600 is backward compatible with all deployed Eclipse and CTR indoor units and is over the air compatible with the previous versions of ODU 600
The Aviat ODU 600 delivers the highest transmit output power in its class of ODUs across multiple frequency bands, including:
- Broad operating frequency range: 6 – 42 GHz
- High throughput per T/R, per polarization: Up to 850 Mbit/s data
- Flexible Power Mode (FPM) for software-defined base power and high power modes in the same unit
- Multiple transport options – Carrier Ethernet, PDH/SDH/SONET or Hybrid (mixed-mode Carrier Ethernet + PDH/SDH/SONET) in a single radio channel
- Over-the-air interoperable with previous versions of ODU 600 to facilitate easy upgrade and evolution
- Compatible with CTR, Eclipse IDU and INU transport and switching platforms
- Full 4096 QAM Adaptive Coding and Modulation (ACM) with Eclipse
- Supports concurrent ACM (Adaptive Coding and Modulation) and XPIC (Cross-Polarization interference cancellation) operation
- Operating frequencies L6/U6, 7/8, 10, 11, 13, 15, 18, 23, 26, 28, 32, 38 and 42 GHz;
- High throughput per T/R, per polarization
– Typically 850 Mbit/s data
– Up to 127xDS1
- Flexible Power Mode (FPM) for software selectable standard or optional high power mode;
- Transport options- Carrier Ethernet, PDH/SDH/SONET or Hybrid (mixed- mode Carrier Ethernet + PDH/SDH/ SONET), IP/MPLS, in a single radio channel (dependent on indoor unit);
- Up to 4096QAM, with ACM (dependent on indoor unit/RAC);
- Channel size support from 3.5 to 110/112 MHz, dependent on indoor unit/RAC
- Wide diplexer tuning range to minimize spares holding, simplify ordering and inventory;
- Configurations supported include 1+0 NP, 1+1 MHSB, 1+1 MHSB SD, 2+0, 2+0 XPIC;
- Ultra-compact: 230 x 180 x 65mm, 2.7 L, all frequency bands;
- Operating temperature Range: -33 to +55 degrees C
- Compatible with Aviat Eclipse IDU GE3, RAC 70/7X, RAC 60/6X/60E/6XE, RAC 30v3, with R08.00.72 and above operating software.
- Compatible with Aviat CTR 8540 (RAC 1x, RAC 2x), CTR 8311, 8312 and 8380 (versions 1 and 2) with R3.2 and above operating software.
- Over the air interoperable with the previous version of ODU600 (v1).


Mac can't connect to a Wi-Fi network or connection is slow and unstable - how to fix?
Today, Wi-Fi networks are found in most homes where computers and mobile devices are used. Furthermore, free Wi-Fi networks are available in public areas such as cafes, hotels, airports, business buildings, various SPA centers, etc. Wi-Fi connections are used for personal use, but are also well integrated into various other systems, such as security cameras and yard lightning. Since Wi-Fi is widely used, a lost or weak signal can be very frustrating.
Loss of Wi-Fi connectivity might result in problems with work or inaccessible features such as 'smart home', whereby all electronic devices are connected through the network. Even casual activities that include movies, home entertainment, or music can be affected, unless you download everything to internal or external storage. There are three main causes of Wi-Fi network issues: 1) router errors; 2) the Internet Service Provider [ISP] network is down or experiencing issues, and; 3) problems with your device. There can also be issues with macOS software running on your computer. In this article, we describe some Wi-Fi network issues and possible solutions.
Table of Contents:
- Check your software compatibility
- Look up, if there is any Apple's WI-FI recommendations
- Contact your Internet service provider
- Reboot your Mac
- Reboot your router
- Forget and reattach your Wi-Fi network
- Check the location of your router
- Call Apple's Wireless Diagnostics to help you find out the problem
- Check for available competitors to your router
- Use the 5GHz band instead of 2.4GHz
- Run Apple Diagnostics
- Reset your Mac's SMC and PRAM or NVRAM
- Change the DNS settings for your network
Check your software compatibility
First, try some easy steps. Some users have reported that the Wi-Fi problem appeared after upgrading their Macs. This particular problem has been widely encountered with Mac OS version El Capitan - once the update process finishes, issues with connecting to wireless networks occurred. Apple released an update for software to address the issue, but MacBook Air owners still reported problems, since for many, a Wi-Fi network was the only available connection to the Internet. iFolks users found an option to access the update: share the connection from their mobile phones. If this option is available to you, it might be worth a try, but bear in mind that cellular data restrictions will have a maximum available GB. Furthermore, Wi-Fi problems are sometimes encountered when computers run a beta version of MacOS. For example, issues with frequent Wi-Fi dropouts while running High Sierra beta (but resolved in the 10.13.12 update).
Look up, if there are any Apple WI-FI recommendations
Since all modern versions of macOS include many troubleshooting tools, your computer will check for issues while attempting to connect to a Wi-Fi network. The recommendations are displayed in the Wi-Fi status menu, which can be accessed by clicking the Wi-Fi logo in the menu bar at top right of the screen.
Contact your Internet service provider
Network issues might be the result of problems with your Internet Service Provider (ISP). In this frustrating case, the only option is to contact them or check 'network status' on their website to check if they are encountering issues. Even if their servers are working well, there might be problems with cables. For example, if the network has an issue during bad weather, it might be caused by water on the cables.
Reboot your Mac
Resetting electronic devices is a good idea, and so this process is similar to the previous one. Turn the Mac off, disconnect the power cable, and wait for 30 seconds. Turn the computer on and check if the problem is solved. Otherwise, disable the Wi-Fi adapter and wait a few seconds before turning it back on - this will force the Mac to re-scan for available networks. To turn off the Wi-Fi, click the Wi-Fi logo in the menu bar at the top right of your screen and choose Turn Wi-Fi off.
Alternatively, try to disable Bluetooth. This might seem confusing, but users report that turning off Bluetooth solved network issues. To disable it, click the Bluetooth icon located next to the Wi-Fi icon and choose Turn Bluetooth off.
Reboot your router
As we all like that our devices to connect automatically to a home network, routers often experience significant uptime. This can result in crashes, since the demand outweighs its capacity. The solution in this situation is quite simple: disconnect the router from the power adapter and keep it in this state for about 30 seconds. Then, reattach the power cord and turn it back on.
Keep the router cool
Electronic devices and components will not work if they exceed their maximum temperatures. Wi-Fi routers will fail if they are not covered or positioned to prevent excessive temperatures. Manufacturers include various protections against overheating (depending on the device), but most will simply stop working or decrease performance to the minimum.
Forget and reattach your Wi-Fi network
Removing the existing network, and performing a fresh connection sometimes solves erratic problems related to Wi-Fi network connections. The effect is similar to a router reset, without managing the power source. To forget a Wi-Fi network, open the Mac System Preferences and select Network. In the new window, select your Wi-Fi network from the list on the left and then click Advanced. You will see a list with all saved networks - select the problem network and click the remove (-) button. Confirm your action by clicking Remove in the popped-up window. Once you have removed a network from the preferred list, all Apple devices that use the same Apple ID and iCloud Keychain will not automatically connect to it. The last step is to connect to this particular network manually - select it from the list and enter the password when requested.
Check the location of your router
Since Wi-Fi routers are based on electronic waves, the location of the router might be a problem. When you position a router, avoid any large metal surfaces such as radiators or filling cabinets. Another important factor is the distance between the computer and source of electronic waves. Try to position the Mac (or other device) using the Wi-Fi network closer to the router. Check if this solves the issues. Signal strength can be affected for a number of reasons. For example, thick walls concealing significant metal can result in 'dead spots' where the Wi-Fi signal is unreachable. Some third-party applications draw a map of a building's Wi-Fi signals. NetSpot is an example - this is a paid application with a cost of $7.99. These apps require you to move your computer through the building to inspect signal strength. If you find weak spots, you can obtain a Wi-Fi extender device that expands areas of the wireless signal. When you set up these devices, ensure that you change the SSID (Wi-Fi network name) and password to be identical to your router settings - this will allow your Mac to automatically switch between signals when it reaches a spot where the strength differs. Otherwise, you will be asked to type in the password, and the connection will be lost until you confirm the action. Problems are sometimes caused by other electrical devices such as microwaves, fans, wireless phones, or motors. For example, the Wi-Fi connection is lost whenever you use a microwave oven. This is a result of mircowave interference. In this case, move the router away from the microwave device, that could be affecting the signal.
Call Apple's Wireless Diagnostics to locate the problem
Modern versions of macOS include many built-in diagnostic tools, including those relating to Wi-Fi networks. You can launch the Wireless Diagnostics application, which displays three graphs of signal performance. It also checks for possible issues with your network and/or Wi-Fi adapter. To generate performance graphs, launch the tool by using Spotlight or hold down Option and click the Wi-Fi icon in the menu bar at the top right of the screen. Then select Open Wireless Diagnostics. Before you launch the tool by clicking Continue, click on Window in the menu at the top of the screen, and then select Performance. Alternatively, you may use the keyboard shortcut of Option, Command, and 5. This will display three graphs of transmission rate, signal quality, and signal and noise levels. Inspecting these graphs might allow you to identify issues.
The top graph monitors the data rate of your Wi-Fi network in Mbps. Stats are taked from the router and other equipment connected to it. To troubleshoot problems, you must monitor the rate. Any dips, or a complete drop-off, will indicate an issue.
The middle graph displays signal-to-noise ratio over time - it should be a straight line, possibly with small spikes. If you notice frequent dips in the line, or a complete drop-off, something is interfering with your Wi-Fi signal. Using this graph, you can locate a problematic device by a process of elimination. For example, turn on a microwave oven and check the graph for possible drops.
The last graph, labelled Signal, displays two lines. The top is signal strength and the bottom measures noise. Both stats are shown as dBm (Decibel to milliwatts), a commonly used unit for quantifying the ratio between two values - in this case signal to noise. A good signal should have a strength of between -60 and -10 dBm and the noise level should be below -75dBm. In other words, the smaller gap between the lines, the worse the Wi-Fi signal. Even the position of the router can affect the strength and noise level. Therefore, try to change both vertical and horizontal positions of the device.
Check for available competitors to your router
One of the most common issues experienced when there are several Wi-Fi networks within the same building is interference of waves. Separate routers might possibly use the same channel. To find out about used channels and other related information, Wireless Diagnostics can help. The Scan function, which is accessible through the Window menu at top left of the screen displays information about all detectable networks. Even a similar name might cause problems. Routers usually succeed in automatically selecting proper channels, however, if you are experiencing issues, inspecting and manually changing the channel might solve the problem. Path to router settings depends on the software, which can be accessed by entering the router IP address through a web browser. Most routers have an IP address of http://192.168.0.1 or http://192.168.1.1, or sometimes http://192.168.1.254. In the router software, look for channel information, log in if required and change it. Do not choose 'next available' - skip at least five or seven channels, since their frequencies overlap. Note that narrowband uses five channels simultaneously, while wideband routers use seven. We recommend that you monitor the graphs within the Wireless Diagnostics tool to choose a channel that offers the best performance.
Use the 5GHz band instead of 2.4GHz
The channels described above relate to the 2.4GHz band. If the methods did not fix the wireless issues, switch to the 5GHz band. The 5GHz band is less susceptible to interference, since other domestic devices do not use that frequency. It also offers more bandwidth as compared to 2.4GHz. Unfortunately, this option is available only for dual-band routers. If you use Apple products, AirPort Extreme and Time Capsule offer this feature. To begin, you must separate the 2.4GHz and 5GHz networks on the router and give them different names. For Apple devices this can be performed in the AirPort Utility application, under the Wireless tab. Click the Wireless Options button at the bottom of the window and enable the checkbox beside the 5GHz network name and set a different name to the other band. Finally, set the Mac and iOS devices to join the 5GHz network rather than 2.4GHz. On a macOS, go to System Preferences and select Network, choose Wi-Fi network, and click Advanced. Drag the 5GHz network to the top of the preferred networks list. On an iOS device, open Settings and tap on Wi-Fi. Next, tap on the blue 'i' in the circle beside the 2.4GHz network name and toggle Auto-Join to off. Finish by connecting manually to the 5GHz network.
Run Apple Diagnostics
If none of the steps above solve the Wi-Fi network issues, use Apple Diagnostics to check for existing troubles on the Wireless adapter or network. To use this tool, first disconnect all external devices, except the keyboard and screen. Next, shut down the Mac and turn it back on, but hold down D on the keyboard when turning on. Release the key when you see the window asking to select your language - select it and wait until the process finishes (this can take 2-3 minutes). If the tool detects any problems, they will be displayed on-screen together with suggested solutions.
Reset your Mac's SMC and PRAM or NVRAM
If you still struggle to solve wireless network problems, try resetting the Mac SMC (System Management Controller) and PRAM or NVRAM. Detailed steps here: how to reset Mac's SMC you will find in this step-by-step guide. Process: how to reset your computer's PRAM or NVRAM is described here.
Change the DNS settings for your network
Changing the DNS settings is a recommended method when dealing with network-related issues. This method may seem confusing, so follow the steps below. First, you need to delete your Wi-Fi preference files, but we strongly recommend that you create a copy, before deleting. Begin by launching Finder. Click on Go in the menu at the top of the screen and select Go To Folder. Type the following destination: /Library/Preferences/SystemConfiguration/ Within this folder, look for the files listed below, drag them to a separate folder where you will store them.
Next, restart the Mac and turn on Wi-Fi to check if the problem is solved. Otherwise, create a new Wi-Fi network location adding custom MTU and DNS details. Before adjusting these settings, close all applications that might be using the network. When you have closed all apps, go to System Preferences and select Network. Then click the wireless network and click the drop-down beside Location in the top center of the window. Choose Edit Locations, click on add (+) to create a new location, and name it with something you can remember. Finally, click Done.
Next join the Wi-Fi network using your usual router password. Click Advanced, select the TCP/IP tab, and then click Renew DHCP Lease.
Go to the DNS tab and add 220.127.116.11 and 18.104.22.168 addresses to the DNS Servers list (those are Google's free DNS servers, but you can add any you prefer.)
Next, choose the Hardware tab. In the drop-down menu next to Configure, select Manually. Change MTU to Custom and set it to 1453, click OK, and confirm by clicking Apply.
If none of methods above solved the wireless network issues, consider replacing the router.


Computer Components, Software, Uncategorized
64 Bit Microsoft Windows 10 Professional
Brand Microsoft Model Windows 10 Software type Microsoft Windows 10 Professional System req processor 1GHz System req RAM 1 gigabyte (GB) for 32-bit or 2 GB for 64-bit System req disk space 16 GB for 32-bit OS 20 GB for 64-bit OS Display 800 x 600 Others Graphics card: DirectX 9 or later with WDDM 1.0 driver License Validity Product version lifetimeSKU: n/a
CCTV System, DAHUA
Eyeball Camera DH-HAC-HDW1200R 2MP HDCVI IR
4 Signals over 1 Coaxial Cable
HDCVI technology supports 4 signals to be transmitted over 1 coaxial
cable simultaneously, i.e. video, audio*, data and power. Dual-way data
transmission allows the HDCVI camera to interact with the HCVR, such as
sending control signal or triggering alarm. Moreover, HDCVI technology
supports PoC for construction flexibility.
* Audio input is available for some models of HDCVI cameras.
Long Distance Transmission
HDCVI technology guarantees real-time transmission at long distance
without any loss. It supports up to 800m(1080P)/1200m(720P)
transmission via coaxial cable, and up to 300m(1080P)/450m(720P) via
*Actual results verified by real-scene testing in Dahua’s test laboratory.
HDCVI technology inherits the born feature of simplicity from traditional
analog surveillance system, making itself a best choice for investment
protection. HDCVI system can seamlessly upgrade the traditional
analog system without replacing existing coaxial cabling. The plug and
play approach enables full HD video surveillance without the hassle of
configuring a network.
The camera is designed with microcrystalline LED IR illumination for best
lowlight performance. Smart IR is a technology to ensure brightness
uniformity in B/W image under low illumination. Dahua’s unique Smart
IR adjusts to the intensity of camera’s infrared LEDs to compensate
for the distance of an object, and prevents IR LEDs from overexposing
images as the object come closer to the camera.SKU: n/a


The group is responsible for a wired network connecting over 80 buildings on campus; a wireless deployment covering most of the campus; the Internet connection; VPN; and data traffic for control systems, card access systems, and other security systems. The group is also responsible for many servers supporting important IT services for the College such as ERP, web servers, wikis, software license servers, patch maintenance, monitoring, storage, and backups. The operations group handles day-to-day activities for user accounts, backups, networking support, data entry, and an 1,800 square foot data center. Network security is currently shared among everyone in the group and covers areas such as networking, centralized servers managed by CIT, and centralized directory services.
Barron Hulver Director of Networking, Operations, and Systems Center for Information Technology Oberlin College 148 West College Street Oberlin, OH 44074 http://www2.oberlin.edu/staff/bhulver
Oberlin College is one of the leaders in IPv6 adoption:
Oberlin's IPv6 web page (only available via IPv6)
An IPv6 survey site
Here is a wireless map of the campus


Stand up for the facts!
Our only agenda is to publish the truth so you can be an informed participant in democracy.
We need your help.
I would like to contribute
If Your Time is short
- The moon landing was real.
- The photo of the phone President Richard Nixon used to call the astronauts belies the technology used to make that communication happen.
"If you still believed we landed on the moon after seeing this I don’t know how to save you," reads the text flanking several images in a recent Instagram post, including an old green push-button telephone.
"Phone call to moon," reads the label.
And out of context, the photo of the phone President Richard Nixon used to call the astronauts belies the technology used to make that communication happen.
The call went from the Oval Office in Washington, D.C., to Houston, where it was then routed to space via mission control through the capsule communicator, according to AT&T, whose predecessor, the Bell System, was involved in the space program through a subsidiary that worked with NASA.
From Houston, reports Wired, the call "bounced to Manned Space Flight Network dish antennas scattered around Earth, traveled 238,000 miles to the Apollo Lunar Module, and finally hopped to its ultimate destination: antennas attached to the backpacks carried by Armstrong and Aldrin."
The call used technology developed by the U.S. Air Force, the U.S. Geological Survey and several corporate contractors, including BellCom, the Bell System subsidiary that was formed at NASA’s request in 1952 and employed scientists from Bell Labs.
An S-Band Transponder developed by General Dynamics Corp. enabled the communications between Apollo 11 and Mission Control, according to the aerospace and defense company, and it had to be designed to withstand extreme cold, heat and radiation. "Hundreds of employees" in Scottsdale, Arizona, began developing the transponder in 1962.
Claims that say the moon landing was a hoax because of Nixon’s phone call rate False.
Instagram post, May 4, 2023
National Archives, A historic phone call, visited May 5, 2023
General Dynamics, Engineering the communications system For Apollo 11, visited May 5, 2023
Wired, Tech time warp of the week: Watch President Nixon dial the moon in 1969, Feb. 21, 2014
The Houston Chronicle, How did President Richard Nixon place a phone call to the moon?, July 19, 2019
AT&T Archives, Nixon calls the moon, visited May 5, 2023
Read About Our Process
In a world of wild talk and fake news, help us stand up for the facts.


Does anyone know what the correct level is?
Establishing and maintaining a standard audio level, especially in studios, has been a problem ever since the first radio station went on the air.
In the 1960s, audio console output levels were typically +8 dBm (eight decibels above one milliwatt into 600 ohms) for tubes and early solid-state consoles.
This +8 was a compromise between headroom and noise. A vintage 1969 Gates Statesman audio console had a dynamic range of 74 dB between maximum clipping at +18 dBm and noise level. This is 64 dB between the normal level of the program and the noise. This was fine for AM stations, where a signal-to-noise ratio of just 45dB was required by the FCC between 100% modulation and no audio.
Then came FM with a signal-to-noise ratio of 60 dB or better required by the FCC throughout the audio chain. The Statesman’s 64 dB signal-to-noise ratio left only 4 dB for additional noise in the station’s audio before it could not meet FCC specifications.
Figure 1 shows an oscilloscope view of a normal voice, where there is just enough dynamic range to accommodate it. The vertical peaks are right at the limits of the equipment. I prefer an oscilloscope to see exactly when peak clipping occurs. There is a discussion of this in a November 9, 2016 article I wrote in Radio World, “Calibrate Analog Audio Consoles”.
If you follow the numbers, you will realize that there was only 10dB between 100% (0dB on the meter as shown in Fig. 2) and audio clipping. The same microphone and voice sounded different from one audio console to another depending on the voice and the operator performing the commands.
My audio tests, with an oscilloscope 50 years ago, showed that some voices can have a mean/peak ratio of up to 16 dB. I deduced that ALL audio consoles need their analog VU meters calibrated to read 100% when peak clipping occurs 20 dB higher. The extra 4 dB supports audio when operators let levels rise hot.
Figure 3 shows the audio driven into maximum distortion. Not everyone hears the maximum clipping distortion, that dirty, heartbreaking sound added to the original content. Female listeners are the first to tune out. Ouch!
[Read More Articles by Mark Persons]
Recalibrating a meter to fix this on an older console might have meant -2 dBm output level when the VU meter read 100%. The signal-to-noise ratio would then be degraded by 10 dB. Those with good ears would say the sound wasn’t distorted, but there was a hiss in the background. Which is more acceptable?
Hi-Fi home stereo systems were gaining popularity in the 1960s and had better audio fidelity than broadcasters could provide. No wonder there’s been a push to design and build better audio consoles, especially for classic stations. For rock and roll listeners of the day, the distortion and hiss didn’t matter because the sound was just loud!
Audio quality improved when ICs such as the NE5532N came to market. These op-amp chips and the like allow balanced sound to be sent and received without the need for transformers.
As you probably know, even the best transformers color the sound of the audio a bit. While this coloration may be desirable and sought after in some recording studios, the goal is generally to keep the broadcast chain as clean as possible. Doing without transformers solved this problem.
ICs can provide about +24 dBm. The normal output level specified on most consoles using this technology is +4 dBm, which gives 20 dB of headroom. Typical examples are the Radio Systems RS-12A and Arrakis 150 to 12000 series audio consoles. This 20 dB is needed to help protect against peak clipping when operators like to hear the mechanical VU meter needles” click” when they drive the audio with force and the needles in the ankle. There is still 80 dB or more between the normal program level and the background noise. We have come a long way!
Devil and details
Audio processing was helpful in fixing audio level issues, but can do little for distortion. Some newer digital processors attempt to unclip the audio by mathematically recreating the original waveforms. This is a problem that should not exist in the first place if the proper procedures are followed. Once audio is clipped, it is permanently damaged.
Going back in time to the early 1960s there was the aptly named Gates Level Devil which expected a +8 input but could be adjusted to operate on low level audio up to 25dB of boost or gain reduction. It solved many problems caused by inattentive operators. The goal was to maintain consistent audio levels for ease of listening.
A story from the time goes that a minister came to a radio station to do a live radio show and insisted that the Level Devil be pulled from the circuit while it was on the air!
As far as audio levels go, 1960s console inputs were designed to accommodate a fairly wide range of source material through the use of input attenuators. There was no standard, if I remember correctly. Cartridge and reel tape machines may be capable of 0 dBm, but can easily be turned down to match what a console channel was optional for. A phono preamplifier/turntable may only deliver –15 dBm.
I constantly reminded the operators to monitor the audio levels to keep the sound consistent, as I could hear audio level issues when listening live. Operators, as you know, use their ears, under tightly pressed headphones to determine audio quality, rather than being bothered to read VU meters. They do not realize that the listener does not have the same helmets.
Automotive environments are a particular listening challenge with perhaps only 15 dB of listening range above noise on a busy highway. It’s bad business when a listener has to turn the radio volume up and down when they should have heard the radio sound at a constant level.
Try it yourself – place an oscilloscope over the vocal audio in a studio to see what you hear or observe the waveform in a digital editor. Intentionally record a voice at too high an audio level. You’ll hear the maximum clipping distortion, caused by running audio beyond the limits of the equipment, and you’ll understand that more isn’t better.
What is standard when recording digitally?
On some devices, the LED VU meter reads -14 dBFS (14 dB below full scale) when sound is normal. On an Axia Radius console, the meters change from green to yellow at -20 dBFS and from yellow to red at -10 dBFS. These are peak readings, which helps. Average-reading meters won’t tell the story. When the meters touch red, there is 10 dB of digital headroom. You might need that or more headroom for an occasional spike.
Remember that 0 dBFS is an absolute limit and digital clipping is even more destructive than analog. At this point, there are no more bits left to represent the signal.
Since noise is no longer an issue, I strongly recommend -20 dBFS as a digital reference level for +4 dBm or 0 VU in the analog world, especially if you think noise might be -90 dB or higher. It’s embarrassing and inexcusable to let the audio go into audible peak clipping distortion that ruins an otherwise great sound.
I’ve visited radio studios and watched LED VU meters showing anything between a constant -20 and an exaggerated redline. I bet listeners hear that and turn away. They don’t know why; they just find another station.
Yes, it’s true that today’s audio processors do a pretty good job of fixing audio level issues. However, it is up to the production staff and engineers to keep the station factory running so that the processing can do its job properly when fed with consistent audio input levels.
The original +8 dBm standard evolved to +4 dBm and now 0 dBm on some studio devices. Many, but not all, analog audio routing switches have audio level controls. If this is not the case with the ones you encounter, you should install resistive audio pads to lower the higher level sources to match the lowest level in the installation.
Figure 5 shows a simple balanced audio pad. It assumes that the audio source has a low drive impedance and that all devices powered by it are bridged (input impedance of 10 Kohm or more). The values chosen are standard and are resistors of 1/4 watt or more. Make it variable by replacing a 5000 ohm variable resistor with the 2200 ohm fixed resistor.
Many studios today have a mix of traditional analog on punchblocks and StudioHub on Cat5. Next up is AoIP, or Audio over Internet Protocol. Audio levels can get out of hand if all the sources don’t match.
And the podcasts?
Podcasts usually come to me without any audio processing and often have 10 dB or more disparities between voices during an interview. Some operators deliberately adjust the audio level to emphasize a point. It doesn’t go well when listening in a car with high ambient noise. No listener should have to turn the volume up and down to follow the content.
I also noticed a level difference of 10 dB or more from podcast to podcast, and even from episode to episode. Automakers should look into simple audio processing for unprocessed material like podcasts and CDs. It could improve user experience in noisy road environment.
Consistency is the key to good sound. Take pride in the sound of the installations you work on. Radio depends on sustaining listeners.
Comment on this article or any article. Write to [email protected].
Mark Persons, WØMH, CPBE, is a retired engineering consultant and recipient of the SBE John H. Battison Lifetime Achievement Award.


When a USB audio interface is connected, the iOS/iPadOS Camera app does not seem to record audio or is recording silence only.
This is a known issue of the Camera app that only affects USB audio interfaces with more than two input channels. That means the problem may occur when using one of the following Steinberg interfaces:
UR242 | UR28M | UR44 | UR44C | UR816C | UR8244
...or any other multi-channel USB audio interface on the market.
Interfaces with stereo inputs like these Steinberg interfaces are not affected:
UR12 | UR22mkII | UR22C | UR24C
To restore the record ability of the Camera app, follow these steps:
- Disconnect the USB audio interface from the Camera Connection Kit. The Camera Connection Kit should remain connected.
- Quit the Camera app.
- Start the Camera app.
- Connect the USB audio interface to the Camera Connection Kit.
The Camera app will now record audio from the first two input channels.


Nearly all of us at one point or another have run into the same problem, that problem being not being able to get a wifi signal in our own house, and very few things are less frustrating in a modern world. Our seemingly addiction to information and entertainment makes this problem even more annoying if we get spotty reception and continue to pick up a signal but consistently drop signal over and over again. The frustration can mount and even force people to rearrange their homes and live differently and move offices, rooms and more.
The solution can be pretty extensive and expensive for routing CAT5 throughout your home, the cable cost alone can be significant. Lucky for anyone with this problem there is a real world solution to this problem that is actually low cost and consistent, as well as incredibly easy to implement.
The product that will solve these problems is a Powerline Ethernet Adapter. The technology and concept is simple, all you need to do is plug in the adapter into a power outlet near your router or modem and connect an ethernet cable to it, then anywhere in your house that is on the same power panel and you can then have internet ethernet ready plug. The tech uses your houses existing powerline routing as a cable run.
TD-Link makes an AV600 model that is only a mere 25 dollars and allows for a 600 Mbps performance. If you are needing a gaming application or something a little more demanding in terms of speed needs, you can opt for the AV1000 that only costs 39 dollars and offers 1000 Mbps. Both units can plug multiple outputs into your house but the maximum Mbps is not per unit it is shared between all active units.
If you are looking for simple solutions for old homes that are not able to leverage Wifi due to poor reception this is a powerful and cheap option for anyone dealing with these needs. The ease of use and plug and play reality helps anyone of any technical expertise level deploy and use this solution. You won’t be disappointed, and neither will your wallet.


In today’s world, environmental sustainability has become a pressing issue, and the need to track and monitor the environment’s characteristics has become more important than ever before. However, gathering environmental data can be a challenging task, especially when it comes to collecting data from multiple locations across a large area.
To address this challenge, we were approached by a wi-fi infrastructure pioneer working with an eminent educational institution to develop a system to track environmental characteristics at different locations across the country. The approach was to use IoT through devices designed by a 3rd party and install them in different locations to collect environmental data. The devices would transmit the data to our data ingestion platform, which would store the data and make it available for analysis.
To build this system, we developed a data ingestion platform that could receive data from devices installed in various locations in India. The platform had a listener for messages that would be pushed to ActiveMQ, a message broker, ensuring efficient data transfer.
The data collected from the devices would be ingested into Amazon Athena, a cloud-based data warehouse service, allowing for seamless data querying and analysis. This platform made it easy for researchers to access the data collected from various locations, compare it, and draw insights for their research.
Overall, this solution provided an easy and efficient way to gather and analyse environmental data from different locations across India. It helped researchers to track and monitor the environment’s characteristics, which is critical for developing sustainable solutions for our planet’s future.


Browse our guides on connected TV, home networks and TV services.
Cheap microservers and desktop PCs are ideal when it comes to sharing and streaming your media around the house.
Connecting your smart TV to the internet with a network cable will ensure the most reliable performance. But which is the right type of network cable?
If you’re leaving a pay TV subscription or moving house there are two main options for receiving TV without a subscription: Freeview via an aerial or Freesat with a satellite dish. But which is the right choice for you?
It’s possible to spend between £3.50 and £90 on a HDMI cable. Does the cable really make a difference to the picture and audio quality? And what about those gold connectors?


CuteCircuit is the first company to merge wearable products and telecommunication technology to create emotionally rich experiences for consumers in the fashion, sport, and communication markets.
They develop wearable technologies and smart textile-based intelligent garments based on what is known as interaction design. Interaction Design consists in the development of interfaces that focus on responding to the user’s experience, also known as user centered design. It is widely recognized by companies such as Apple, Adidas, Nike, Hitachi, Canon, Sony, Ideo who apply it to new product development to enrich the experience. A few of their star products include:
The Hug Shirt is a wearable Bluetooth accessory for your mobile phone. The Hug Shirt allows exchanging the physical sensation of being hugged over distance through telecommunication networks.
The KineticDress is part of the Transfor-Me collection developed for the NEMO Science museum in Amsterdam. The KineticDress changes color and pattern depending on the activity of the wearer.
The Accessory Nerve is a Bluetooth wearable accessory for mobile phones. When the Accessory Nerve receives an incoming call the fabric pleats on the sleeve change pattern.
Check out their web site:


Telestra was officially founded in the year 2018 in Mohali, Punjab to develop the most innovative, powerful and intelligent technology platforms to encourage the growth of the mobile industry in the world. Telestra is a provider of various comprehensive services related to mobile phone content and Information technology. We Offer comprehensive products and services that ensure reliable, convenient and secure connectivity. We place our customers at the center of our universe, they are the reason we aim to be initiated and the reason we innovate.
Our ambition is to bring the digital world to the reach of each and every customer.


Advancing Energy: Intelligent Grid Systems
In the realm of energy management, Intelligent Grid Systems are emerging as a transformative solution, bringing efficiency and sustainability to power distribution. This article explores the key components, benefits, and future implications of these advanced grid systems.
Understanding Intelligent Grid Systems:
Intelligent Grid Systems refer to the integration of smart technologies into traditional power grids. These systems leverage digital communication and advanced analytics to enhance the monitoring, control, and optimization of electricity distribution. By incorporating real-time data and automation, these grids enable a more responsive and adaptive energy infrastructure.
Key Components of Intelligent Grids:
Intelligent Grid Systems consist of several crucial components. Advanced sensors and meters collect real-time data on energy consumption, allowing for precise monitoring. Smart switches and controls facilitate automated adjustments, optimizing the flow of electricity. Additionally, communication networks enable seamless data exchange, creating a dynamic and interconnected grid.
Benefits for Energy Efficiency:
One of the primary advantages of Intelligent Grid Systems is the significant boost in energy efficiency. With the ability to monitor and analyze consumption patterns in real-time, utilities can identify areas of inefficiency and proactively address issues. This not only reduces energy waste but also enhances the overall reliability of the grid.
Enhanced Reliability and Resilience:
Intelligent Grid Systems contribute to the enhanced reliability and resilience of the power infrastructure. The ability to detect faults and reroute electricity dynamically minimizes downtime during outages. Self-healing capabilities enable the grid to automatically isolate and restore power, ensuring a more reliable energy supply for consumers.
Integration of Renewable Energy Sources:
As the world shifts towards a more sustainable energy future, Intelligent Grid Systems play a pivotal role in integrating renewable energy sources. These systems enable seamless incorporation of solar, wind, and other renewable resources into the grid. The flexibility and adaptability of intelligent grids facilitate the management of variable energy inputs from renewables.
Grid Security and Cyber Resilience:
With increased connectivity, grid security becomes a paramount concern. Intelligent Grid Systems prioritize cyber resilience through advanced encryption, authentication, and intrusion detection measures. Protecting critical infrastructure from cyber threats ensures the secure and uninterrupted functioning of the grid.
Cost Savings and Operational Efficiency:
Intelligent Grid Systems contribute to cost savings through improved operational efficiency. Automated processes, predictive maintenance, and optimized load distribution result in reduced operational expenses for utilities. These cost savings can be passed on to consumers, making energy more affordable.
Challenges and Future Developments:
While Intelligent Grid Systems offer significant benefits, they also come with challenges. The integration of new technologies requires substantial investments, and interoperability issues may arise. Future developments in grid systems may focus on addressing these challenges, as well as exploring innovations like blockchain for secure peer-to-peer energy transactions.
Global Implementation and Adoption:
Intelligent Grid Systems are being implemented on a global scale as countries recognize their potential for transforming energy infrastructure. From developed nations to emerging economies, the adoption of intelligent grids is contributing to more sustainable and efficient energy distribution systems.
Conclusion and Further Exploration:
In conclusion, Intelligent Grid Systems mark a paradigm shift in the way we manage and distribute electricity. To delve deeper into this transformative technology, visit Intelligent Grid Systems for additional insights and resources. As we embrace the future of energy, intelligent grids stand as a beacon of innovation, paving the way for a smarter and more sustainable power landscape.


|Unique User Downloads
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|All time: 2,194 This week: 455
This class can send SMS messages using Gammu MySQL storage.
It can send messages to one or more recipients using the Gammu MySQL database.
The class creates records for the new messages in MySQL database with the outbox of Gammu.
It can send also long messages by splitting them in multiple parts.
|Applications that use this package
No pages of applications that use this class were specified.
If you know an application of this package, send a message to the author to add a link here.


Szybki tutorial o podłączeniu, konfiguracji nRF24L01+ i tworzeniu tunelu komunikacyjnego dla 2 mikrokontrolerów: Pro Mini oraz Mega2560.
[Rpi/OSX] How to connect Pi via LAN cable to OSX based machine
I spent some time on this problem so as usually I decided to share my solution.
Continue reading [Rpi/OSX] How to connect Pi via LAN cable to OSX based machine
[Python / OSX]Get network connection details, restart wifi, and do more than you think straight from python
I recently figured out how to restart internet(en0) interface on OSX and read some interesting details about our connection. Thanks to objc library I was able to access objective-C methods provided by OSX.
Here is CWInterface Class Reference. Check it out because this documentation provide many interesting methods.
Continue reading [Python / OSX]Get network connection details, restart wifi, and do more than you think straight from python
[Python]How to scan for available networks on OSX
I’m posting this simple code for getting list of avaliable networks on OSX.
#!/usr/bin/python import osf = os.popen('airport -s') now = f.read().splitlines(True) database= for x in range(1,len(now)): i = now[x].strip().index(':') ssid_database=now[x].strip() #print(ssid_database) database.append(ssid_database[0:i-3]) print(database)
Try that with
Have fun! 🙂


We can provide patch cord and gold wire for network and telephone accessories.
1. Widely used in network, communication device, automatic control,
2. Widely used in home appliance, office equipments,
3. Widely used in automobile, motorcycle and electric vehicles.
All kinds of wiring harness are available according at any application fields according to customers¡¯ drawing and requirements.
1. wire and cable comply with UL £¨UL1007, 1015, 1061,1430, 1571, 2464, 2468,1095, 1617,1185,1330,1331,2547) or VDE standard. It can be normal PVC wire, spiral/braid shield and halogen free
2. Wire range: 10AWG-32AWG
3. Various connectors or SR are valuable like AMP£¬MOLEX, JST, PHR, FCI, Berg , or the equivalent. according to the customer's requirements
4. Patch cord: fully compatible with Cat 5e/5/6e application with various cable type UTP, FTP, SFTP, SSTP.
Insert-molded strain relief provides the 360-degree protection for mechanical strain.
5. RoHS compliant


A new evolution in the world of smartphones and technology has been developed by UCLouvain: Multipath TCP (Multipath Transmission Control Protocol). This is an increasingly widespread technology that allows you to switch efficiently from WiFi to 4G and vice versa, ensuring a more stable, faster and safer connection. Samsung, LG, Huawei, iPhone and many others have already adopted this new evolution. The contribution of the UCLouvain team has not gone unnoticed and has won the Networking System Award, one of the most important awards in the IT industry.
Take a look at this link to find out more: https://uclouvain.be/en/discover/press/news/uclouvain-strengthens-connectivity-of-1-in-8-of-world-s-smartphones.html


RFID Technology is the wave of the future. RFID is the abbreviation for radio frequency identification commonly used for automatic tracking and data collection. At SpartaMatrix™, we design and install customized systems that use the latest hierarchical RFID processes.
SmartTag® consists of two basic parts; a transmitter and a chip with a micro antenna. We use a specialized I-Code RFID chip where information can be stored electronically and later recalled. This chip is electronically encoded with a unique key number together with information documenting the contents, the source wholesaler, total number of units and any other information deemed necessary. Information on these chips can be read by hand held devices that recognize these unique chips and therefore identify each item carrying the chips. This therefore allows all items to be tracked along the entire shipment process
SmartTag® is available in two formats, passive and active. Passive tags generates power from the tiny current conducted when the antenna receives a radio signal; active tags require an external power source but have much greater range and data capacity.
Passive tags hold less data and have a much smaller range, however:
SpartaMatrix™ is able to use its expertise in RFID technology to integrate the tracking of the entire shipment and delivery process using its SmartTag® technology.
Once we determine the customers requirements, we will be able to customize and recommend a system which will fit their needs.
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TELARIX SECOND QUARTER RESULTS SETTING STAGE FOR MILESTONE YEAR
Demand Surges for iXLink® and ‘All-In-One’ Service Solutions
VIENNA, Va. — August 12, 2010 —Telarix, Inc., the leading provider of business information exchange and interconnect OSS/BSS solutions for content providers, IP service providers and global fixed and mobile operators, today announced it beat its own growth expectations during the second quarter, achieving a 267% increase in year over year new customer sales bookings compared to the same quarter last year and a 62% increase in revenue for the same period.
“This quarter’s results demonstrate that iXlink has become the business information exchange for the global service provider marketplace and that the company’s OSS/BSS solutions are fast becoming industry standard around the world,” said Glen Kazerman, Chief Executive Officer, Telarix. “And as Telarix OSS/BSS solutions are adopted and utilized as the industry standard, we are seeing a corollary and exponential increase in demand for our services.”
Kazerman said Telarix saw growth across all its iXTools software modules that enable Tier-1 service providers such as Verizon, T-Mobile, KDDI and others to optimize their networks with real-time intelligence, route traffic across multiple platforms, as well as track settlement charges, partner invoice reconciliation and other processes to improve efficiency and lower costs.
Telarix’s iXLink business information exchange, which provides service providers with a secure, best-in-class business-to-business exchange platform to automate their interconnect management systems, also experienced strong demand during the quarter. iXlink has begun to facilitate the true globalization of the Service Provider marketplace, which is demonstrated by the 1200 Service Providers around the globe who are currently participating in iXLINK.
“Telecommunications companies are not holding back on IT spending on Telarix OSS/BSS solutions,” said Kazerman. “Our iXTools and iXLink services are providing companies the means to increase productivity, efficiencies and achieve lower operating costs in a challenging environment.” For the first fiscal half of 2010, Kazerman said customer bookings are up 54% year over year and demand for all solutions are at an all time high.
New Services, All-in-One Service Solutions Build Best-in-Class Brand
The company’s second quarter’s results builds upon the company’s stellar 2009 year-end numbers, which saw the company achieve a 170% year over year growth increase in new customer sales bookings and a 30+% increase in its global client base. New customers that have signed agreements and have had Telarix solutions implemented include Jordan Telecom Group and Teliasonera, among others.
As the ‘go to’ company for leading edge solutions, Telarix is heavily relied upon within the telecommunications industry to develop new products and services that optimize network infrastructure, interconnection communications and management tools and other services designed to streamline operations and improve efficiency and financial performance.
In response to customer demand, Telarix recently introduced two new services critical to the industry, including:
Price List Receipt with Dial Code Mapping, which enables carriers to simplify and automate their purchasing process and take advantage of Telarix’s best-in-class dial code functionality to instantly analyze partner offers and eliminate risks associated with dial code discrepancies.
CLI Monitoring, which provides provide mobile, fixed-line and VOIP carriers the ability to accurately verify Calling Line Identification (CLI) for mobile and landline destinations worldwide.
Investor Sentiment Soars; Company Attracts Increasing Investment
The company’s fast growth and unequaled product line has also sparked investment confidence and interest. In the first quarter of the year, Telarix announced that it secured $20 million in growth capital from Brown Brothers Harriman Capital Partners III (“BBH Capital Partners”), a private equity fund sponsored by Brown Brothers Harriman & Co., and Edison Venture Fund. The new funding will support the continued growth of the Telarix iXLink business.
“Telarix’s combination of breakthrough technology, commanding market leadership and strong management team made this an attractive investment for our fund,” said Jeffrey Meskin, Managing Director and Co-Head of BBH Capital Partners. “Telarix is transforming the way carriers conduct business with one another and we are excited to support the company as it continues its track record of growth and innovation.”
Kazerman added that Telarix’s collaborative efforts with service providers, computing and platform providers, system integrators and industry associations has helped it to develop the leading-edge products and service solutions that has propelled the company to its leadership position.
About Telarix, Inc.
Telarix, Inc. delivers the leading business information exchange and interconnect OSS/BSS solutions for content providers, IP service providers and global fixed and mobile operators. iXLink is a neutral business exchange service designed specifically for the telecom industry. Created in conjunction with a number of the world’s largest telecom providers, iXLink provides a secure, reliable business-to-business information exchange platform that enables communication service providers to automate business processes as well as quickly and efficiently access and share business documents among their trading partners. Telarix's innovative platform, iXTools, provides the real-time business intelligence required to manage costs and drive profitability on interconnect networks. By analyzing both revenue and cost information associated with telecom traffic in near real-time, service providers can optimize all aspects of their interconnect business including partner agreement management, trading, traffic routing, network provisioning, billing, invoice reconciliation and dispute management. Please visit www.telarix.com and www.ixlink.com for more information.
+1 703 564 9626


Why Protect Yourself From Mobile Phone Radiation
Imagine you are traveling in a carriage on the London Underground in the rush hour with over 80 mobile phones all connecting at each station. The equivalent of some 144G will be generated by the mobile devices. Combined with exposure in offices, and our general surroundings this radiation exposure creates conditions in the body that will manifest in:
● Headaches, Migraines
● Chronic Fatigue
● Insomnia Nervousness
● Concentration Defects
● Allergies of all kinds.
By using your Mobile Phone Patch you will block the frequencies emanating from the device to protect you from the radiation or HRF.
The patch will work on all devices including but not limited to the following products:
- Apple iPhone’s
- HTC One
- Samsung Galaxy S3
- Sony Xperia Z
- Google Nexus 4
- Nokia Lumia
Standard Patch JUST €19.80 including postage and packaging
Mobile phone technology has developed so that we don’t just have a phone but a small convenient computer with applications, diary management, e-mails and tools to help us daily in our lives. These devices have developed so that we can be online any place any time. It is almost impossible to travel in large urban areas without being able to connect to a Wi-Fi Services, Restaurants, Banks, Coffee Shops and High Streets in general are enabling access in an ever increasing and convenient way.
The mobile phone is an amazing tool and has transformed society so that people can communicate with each other like never before. Rail networks and The London Underground are now Wi-Fi enabled on platforms and 3,4G networks enable faster download speeds for data.
The problem is that these small but powerful devices emit Harmonic Resonance Frequencies "(HRF). Mobile Phones now transmit up to 1.8G of HRF when connected on a phone call and if connected to Wi-Fi the frequency is constant, we call this mobile phone radiation.


1. Firstly, you should go to your command prompt window. Open Run (how to open run) and type cmd.
ipconfig used to display the TCP/IP network configuration values. If your computer connected to internet or local network you will have an ip address and will described in ipconfig. To view switches for ipconfig use ipconfig /? command for help, let’s see the picture and explanation below.
/release : release specified adapter if you got IP address from DHCP server.
/renew : renew and ask for new IP address from DHCP server.
/flushdns : clear all DNS local cache
/displaydns : displaying what do you have in your local DNS cache.
This command usually used to check active connection between computer or server. Ping sends out a packet to a designated internet host or network computer and measures its response time. The target or other computer will respond and return a signal to determine the quality of connection to other site or another computer.
If you see the image above, my current connection with google.com is not too good(but also not too bad), because the average time for the very good connection is not more than 100-150ms (more lower more fast).
When you do ping command, the default packet value you send to other computer is 32 bytes.
If you find “Request timed out” message when you perform ping, maybe the remote server or computer didn’t allow ping or they have a firewall.
Tracert (traceroute) is another command adopted from Unix system. Actually when you try to open facebook.com or google.com in your browser, you ask your computer to go to that address through hopping into a few router address. Let’s see the picture below when I’m trying to traceroute to google.com(sorry if I put a lot of sensor in this pics).
To reach google.com I need to go through 8 hop(router) until my last destination. Usually tracert command also can be used to check your connection into some websites. If you found that the hop more than 15 when you do tracert command, that website should be very slow accessed from your PC.
Netstat displays the active TCP connections and ports on which the computer is listening, Ethernet statistics, the IP routing table, statistics for the IP, ICMP, TCP, and UDP protocols. Netstat also can be used to tracking your outbound or inbound connection to your computer, it’s useful to malicious connection. Let’s see the picture below to see the available switch in netstat.
netstat -a : use to displaying all connection and listening ports.
netstat -b : showing the executable files involved in creating connection
you also can use the switch simultaneously, for example netstat -ab to display all connection and executables files related to it’s connection
This command helps to diagnose the Domain Name System (DNS) infrastructure and comes with a number of sub-commands. Usually used by hackers to find out some useful information that you can’t find on search engine. In this tips and trick I’m only show you how to find server IP address or host name. Type nslookup and the enter the URL of website you want to know it’s IP address for example I use google.com.
As you can see on picture above, that google.com have about 5 IP address and if you open all of that IP address, it will open the same website : google.com.
At the command prompt, type hostname, and then press Enter.
At the command prompt, type ipconfig, and then press Enter.
For more information about the ipconfig command, at the command prompt, type ipconfig /?, and then press Enter.
At the command prompt, type ipconfig /all, and then press Enter.
If your computer has more than one network adapter, the physical address of each adapter is listed separately.
If your network uses Dynamic Host Configuration Protocol (DHCP), you can get a new IP address for your computer. You might need to do this if you are having connection problems.
At the command prompt, type ipconfig /release, and then press Enter.
This releases your current IP address.
At the command prompt, type ipconfig /renew, and then press Enter to get the new IP address.
The DHCP configuration for all adapters will be renewed. To renew the IP address for a specific adapter, type the adapter name that appears when you type ipconfig at the command prompt.
At the command prompt, type ping DNS name, and then press Enter.
At the command prompt, type ping IP address of the computer you want to test, and then press Enter.
On a home network, if you don’t get a response in a second or two, the other computer is not recognized on the network. Make sure that it’s turned on and that the network adapter is enabled.
To obtain detailed information about your network connection, use the ipconfig command. Type ipconfig in Command Prompt and press Enter. As you can see below, a list with the network devices existing on your system and their IP addresses is displayed. You get also details such the default gateway, subnet mask or the state of the network adapter.
With the /all switch you will get a whole new level of detail: DNS information, the MAC (Media Access Control) (in the Physical Address field) and other information about each network component. Check out the picture below to see a sample of the combination of ipconfigcommand with the /all parameter.
It’s worth mentioning that the ipconfig command allows you to perform certain operations, if you use the right parameter. For example the ipconfig /release and ipconfig /renew commands force your network adapter to drop and renew the current IP address. These parameters are useful in networks that use DHCP (Dynamic Host Configuration Protocol) to distribute IP addresses automatically. Basically your system gives up its current address and requests a new one from the DHCP server. This can be very useful in certain networking scenarios.
Another way to obtain the MAC address is to use the getmac command. Just type getmac and press Enter, as shown below.
To test your connection to a certain website or another network or Internet location, you can use the ping network command followed by a web-address or IP address. For example, if you want to check the connectivity to our website, without opening a web browser, type pingwww.7tutorials.com and then press Enter.
This command allows you to use a quite useful parameter that enables you to ping the specified address until it’s stopped manually: -t. For example, I typed ping -t 192.168.2.1. After a period I decided that I want to see some statistics and I used the keyboard combination CRTL + Break. This shows the averages for the ping commands run until then. Finally I terminated the action by using the keyboard combination CTRL+C. This stopped the endless cycle of ping commands to the specified address.
With the netstat command you will be able to see active network connections between your system and any other systems on your network or the Internet.
The -a parameter shows all connections and listening ports. A sample can be seen in the image below.


Knowledge management and technology – but what sort of technology?
When we think of KM and technology, we usually think of IT. But is this the wrong sort of technology to concentrate on?
|image from wikimedia commons|
Knowledge Management as a discipline was born in the 1980s as a combination of Organisational Learning and the technological revolution sweeping through organisations. In BP, where I worked at the time, Knowledge Management went hand in hand with, and was enabled by, the development of a common operating system, personal desktop computers for all, email and video conferencing. In fact, the KM program was a direct successor to the Video Telecommunications project.
Information and communication technology (ICT) is another/extensional term for information technology which stresses the role of unified communications and the integration of telecommunications (telephone lines and wireless signals), computers as well as necessary enterprise software, middleware, storage, and audio-visual systems, which enable users to access, store, transmit, and manipulate information.
It was not so much the availability of information processing power or the ability to store information that sparked the birth of KM, so much as the networking of computer systems and the ability to communicate far more widely. Suddenly, through ICT, we were connected with so many more people, so many more knowledgeable people.
It was primarily the communication technology that enabled KM, and its worth remembering this as we look at out technology tools.
Let’s focus not so much on IT and more on ICT, because that C makes all the difference.


Cangzhou, Hebei, China
Response Time: < 24h
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Donzon Power Co., Ltd. (formerly renqiu DonZon power communication equipment manufacturing Co., Ltd.) was established in September 18, 2002 , located in SiXian industrial area RenQiu City HeBei province, just 110 kilometers from tianjin port, we mainly research, develope and manufacture electric power line equipment, communication lines equipment, railway line fittings, electrical hardware, communication lines iron, electric iron fittings, ADSS, OPGW cable acessories, preformed guy grips, preformed interval rods, optical fiber closure, optical fiber distribution frame, fiber optic cable transfer box, optical fiber cable, carbon fiber composite conductor, overhead insulated wire, ACSR, hot dip galvanized steel strand, power tower, steel tube rod, steel prop, cable tray, plastic products, silicone rubber and porcelain insulator, lightning arrester, isolating switch, fuse, transformer, safety instruments, high and low voltage electrical appliances, high and low voltage switchgear, our factory covers an area of 36000 square meters, to provide users with thousands of electric power communication and railway products.
Our company strictly implement ISO9001:2008 and ISO14001, With first-class technology ability, perfect pre-sales, after-sales service guarantee system, we set up good reputation between the business and user, based on honesty, responsibility, dedication, flexibility , We Constantly increase the investment of
technology and talents, relying on the strength of company, We stuggle and strive for get the higher level.
Our Company won the bid in the country's state grid , railways,
telecommunications, mobile, unicom, radio and television, and other field, So we become the designated manufacture; Many Products are exported to Russia, the United States, Australia, Canada, South Africa, Kenya, Tanzania, Zambia, Brazil, Argentina, Chile, all nations of southeast Asia and other international markets;We will be more hard work, create value for customers, take responsibility for the society.
|Mobile Phone:||+86 13730586069|
|Telephone:||+86 0317 2283889|
|Fax:||+86 0317 2283055|
|Address:||SiXian industrial area RenQiu city, Cangzhou, Hebei, China, 062550|


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