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SA618F22 is an embedded full duplex transmission module, combining wireless digital and wireless audio. Users can not only wirelessly transmit data through serial ports, but also achieve wireless transmission of voice through I2S or analog audio interfaces.
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Introducing One Classic application scenarios: A Super Flexible Bluetooth Audio Transceiver Using KT1025A
Ever wanted to build your own Bluetooth audio transmitter/receiver without dealing with bulky modules or complicated stacks? Meet my KT1025A-based Bluetooth audio board – compact, programmable, and packed with features!
What's So Cool About the KT1025A? This chip is a hidden gem for Bluetooth audio: ✔ Supports both TX (transmitter) & RX (receiver) modes – switch roles with firmware! ✔ Low-latency audio streaming – great for gaming, DIY wireless headphones, or car audio. ✔ Built-in DSP effects – bass boost, EQ, and noise suppression without extra ICs. ✔ Single-chip solution – minimal external components, perfect for compact designs.
What I Built My board includes: 🔹 USBfor firmware updates 🔹 3.5mm AUX + I2S breakout – hook up speakers, DACs, or even an ESP32 for Wi-Fi bridging. 🔹 Programmable buttons & LEDs – control playback, pairing, and mode switching. 🔹 External antenna option – better range than most consumer dongles!
Why This Rocks for Makers ✅No obscure proprietary tools – development is done via standard UART/AT commands. ✅Supports MP3, WAV, FLAC, APE format decoding– decent audio quality without licensing headaches. ✅Works out of the box as a Bluetooth receiver (e.g., for old speakers) OR a transmitter (e.g., for TVs without BT).
All schematics, a build guide are up on [Google Drive] (https://drive.google.com/drive/folders/1GNh3ebV4mieyRTAvHUEztJU4eUHxfJLR?usp=drive_link ). If you've ever wanted to turn anything into a Bluetooth audio device, this might be your easiest starting point.
Check out the pics ↓ Would love your feedback!
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MAX-7 Series 3.6 V -160dBm Surface Mount u-blox 7 GNSS Module
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SX1262 Series 3.7 V 22 dBm 960 MHz 300 kbps Long Range RF Transceiver - QFN - 24
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NRF24L01+: A Versatile Wireless Transceiver for Seamless Communication
Introduction: In the realm of wireless communication, the NRF24L01+ transceiver stands as a remarkable device that has gained popularity for its reliability, versatility, and ease of use. Whether it's a DIY project, Internet of Things (IoT) application, or remote control system, the NRF24L01+ offers seamless wireless data transmission with minimal power consumption. In this article, we will delve into the features, applications, and advantages of the NRF24L01+ transceiver.
Feature-rich Design: The NRF24L01+ transceiver boasts an impressive range of features that make it an ideal choice for various projects. Its 2.4GHz operating frequency provides excellent signal penetration, while the multichannel communication capability enables interference-free transmission in congested environments. With an adjustable transmission power of up to +20dBm, the NRF24L01+ can cover long distances, making it suitable for applications requiring extended wireless connectivity.
Seamless Communication Protocol: The NRF24L01+ utilizes a robust and efficient communication protocol, based on Enhanced ShockBurst™ technology. This protocol ensures reliable data transfer, acknowledging the successful reception of packets, and retransmitting lost packets if necessary. With built-in features like auto-acknowledgment and automatic retransmission, the NRF24L01+ ensures that data integrity is maintained, even in the presence of interference or temporary signal loss.
Low Power Consumption: One of the notable advantages of the NRF24L01+ is its low power consumption. It offers power-saving modes and various configuration options that allow users to optimize power usage based on their specific requirements. This makes the NRF24L01+ an excellent choice for battery-operated devices, where power efficiency is crucial for extended operation without frequent battery replacements.
Ease of Integration: Integrating the NRF24L01+ into projects is a straightforward process, thanks to its SPI interface and compatibility with a wide range of microcontrollers, such as Arduino and Raspberry Pi. Several libraries and code examples are available, simplifying the development process and enabling rapid prototyping. The compact size of the NRF24L01+ module further enhances its usability, making it suitable for small-scale projects or embedding into existing systems.
Applications: The NRF24L01+ transceiver finds applications in various domains, including but not limited to:
Wireless sensor networks: It enables the seamless transmission of sensor data in IoT applications, allowing for real-time monitoring and control.
Remote control systems: The NRF24L01+ facilitates reliable communication between remote control devices, making it ideal for controlling drones, robots, or home automation systems.
Gaming peripherals: It can be used for wireless gaming controllers, providing a responsive and lag-free gaming experience.
Wireless audio streaming: With its low latency and reliable connectivity, the NRF24L01+ can be employed for wireless audio applications, such as wireless headphones or speakers.
Conclusion: The NRF24L01+ transceiver stands as a versatile wireless communication solution with its impressive features, low power consumption, and ease of integration. Its robust communication protocol ensures reliable data transmission, while its compact size and compatibility with various microcontrollers make it an attractive option for a wide range of projects. Whether you are a hobbyist or an experienced developer, the NRF24L01+ transceiver offers a reliable and cost-effective wireless solution for seamless communication needs.
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EZAIRO 7160 SL - Audio Processor, Wireless-Enabled DSP for Hearing Aids
Enabling wireless connectivity in hearing aids, Ezairo® 7160 SL is an open-programmable DSP-based hybrid module that supports Bluetooth® Low Energy and other 2.4 GHz wireless protocols. What's Included in Ezairo 7160 SL - Ezairo 7100 Digital Signal Processor (DSP): Includes a high precision, quad-core architecture that delivers 375 MIPS without sacrificing power consumption. - RSL10 Radio IC: Industry's lowest power Bluetooth 5 certified wireless transceiver supporting the industry's lowest power Bluetooth Low Energy and proprietary 2.4 GHz protocols - EA2M: 2 Mb EEPROM memory for storing important hearing aid parameters and firmware. Applications - Wireless Connectivity - Audio Processing - Stereo Audio Streaming - Control Over Bluetooth Low Energy End Products: Hearing Aids Specifications WDRC Channels16Graphic EQ Bands33Program Modes8Advanced AlgorithmsAdaptive Feedback Cancellation Adaptive Noise Reduction Automatic Adaptive Directionality Directional Microphone Stereo Audio StreamingAcoustic IndicatorsTone Sequences Voice AlertsOther FeaturesDatalogging Digital Volume Control Software ConfigurableWireless Standards2.4 GHz Proprietary Bluetooth Low EnergyPackage TypeSIP-57 Packaging and Manufacturing - Ultra−Miniature: Suitable for all hearing aid styles including CIC, ITE, RITE, BTE, and mini−BTE. - Reflowable: Ezairo 7160 SL is re−flowable onto FR4 and other substrates. - RoHS Compliant: Ezairo 7160 SL complies with the RoHS directive. - E7160-0-102A57-AG: System-in-Package (SiP), 250/Tape & Reel - E7160-0-102A57-BPG: System-in-Package (SiP), 25/Bubble Pack Other Electronic Components Read the full article
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Hackrf one sdr
Software Defined Radio and Digital Signal Processing.The 3-day advanced SDR covers both theory and application of SDR using HackRF One. SDR Training with HackRF, Advanced Software Defined Radio Training is a 3-day hands-on advanced SDR training course, Software-Defined Radio Development with GNU Radio using HackRF One. The overall concept behind HackRF is to bring an open source peripheral that can assist modern day engineers and researchers for improving next generation communication systems. That’s because this SDR device can interact with a number of technologies including smartphones, GPS, IT infrastructures, Wi-Fi, Bluetooth and even broadcasting stations. With both military and public applications, the majority of wireless systems in the digital age could easily be transcieved by HackRF One. It is small enough to fit easily into a typical laptop bag. You don’t have to carry an external power supply with you when taking HackRF on the road because it is powered by USB. HackRF is designed primarily for use with a USB-attached host computer, but it can also be used for stand-alone applications. HackRF is a wide band software defined radio (SDR) half-duplex transceiver capable of receiving and transmitting (although not at the same time) on a frequency range of 1Mhz to 6Ghz with output power of 30 mW to 1 mW depending on the band. In other words, SDR is like a very fast sound card with the speaker and microphone replaced by an antenna. Just as a sound card in a computer digitizes audio waveforms, a software radio peripheral digitizes radio waveforms. It is similar to the software-based digital audio techniques that became popular a couple of decades ago. SDR is the application of Digital Signal Processing to radio waveforms. Further, it does not require the use of capacitors and resistors, as the software-based filtering algorithms can be utilized to select specific frequencies. What this means is that the functionality is modified or changed by software alone, eliminating the need to make any physical changes to the hardware. Software defined radio (SDR) is a wireless communication device in which the transmitter and receiver modulation/demodulation occurs in software. SDR Training with HackRF, Advanced Software Defined Radio Training Space Operations and Cybersecurity Training.RF Engineering Training | Bootcamp Style.Includes: -1 x SRD Radio (PortaPack H2+HackRF)-1 x Data Cable-5 xĪntennasNote: -The product is assembled. Reception sensitivity varies from band to band, but will not perform as well as a real ham radio receive-Built-in rechargeable lithium batteryPackage PortaPack and HackRF of Un will not replace your handheld ham radio receiver. If you have an RF shield installed on your HackRF, the PortaPack should be fine. It is not compatible with the first HackRF Jawbreake design. PortaPack is only compatible with the HackRF Uno. Sleep mode saves energy by turning off the display only.įeatures: -Your HackRF will continue to work with the computer-based SDR software when you put the PortaPack in "HackRF mode".
Calibration PPM for more accurate tuning. HackRF mode runs HackRF firmware for use with the SDR host computer software. Monitoring of boat (AIS), automobile (TPMS), E utility counter transponder (ITRON ERT). Broadband (18MHz) spectrum and cascade analysis. Micro SD card slot for data and storage code-SSB, AM, narrowband FM, broadband FM audio reception, with cascade spectrum. Coin battery to preserve settings and date / time. Four-way arrow buttons, rotary wheel and select button. No computer is needed (except for firmware reprogramming).įunctions: - 3.2 inches, 240 x 320 RGB LCD with resistive touch panel. The PortaPack firmware works with the fast ARM processors in your HackRF. Just add a USB battery, and you're ready to explore radio spectrum wherever you are.
Hardware Configuration: - 3.2 inches TFT 240 * 320 screen-Navigation switch-Audio output-Microphone input-DC 2.1 interface-4-layer gold plate-ROSH process Add a PortaPack to your software defined radio HackRF, and leave your laptop behind! The PortaPack connects to your HackRF and adds an LCD touchscreen, navigation controls, headphone jack, real-time clock, micro SD card slot.
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Rowe ami jukebox 200 selection stereo
#Rowe ami jukebox 200 selection stereo generator
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Videos relevant to "Model Railway Level Crossing": PIC12F617-I/P programmed for the Model Railway Level Crossing (Source component, AUD $10.00).Mechanical diagrams and label artwork for the Railway Level Crossing (PDF Download) (Panel Artwork, Free).Model Railway Level Crossing PCB pattern (PDF download) (Free).Firmware, source code and sound recording for the Model Railway Level Crossing (Software, Free).ISD1820-based voice recording and playback module (Component, AUD $7.50).Pair of PIC12F617-I/P chips for the Model Railway Level Crossing (Programmed Microcontroller, AUD $15.00).Model Railway Level Crossing PCB (AUD $5.00).Items relevant to "Model Railway Level Crossing": A Gesture Recognition Module (March 2022).Low-noise HF-UHF Amplifiers (February 2022).El Cheapo Modules: LTDZ Spectrum Analyser (January 2022).
#Rowe ami jukebox 200 selection stereo generator
El Cheapo Modules: 35MHz-4.4GHz Signal Generator (December 2021).
El Cheapo Modules: 6GHz Digital Attenuator (November 2021).
El Cheapo Modules: 3.8GHz Digital Attenuator (October 2021).
El Cheapo Modules: USB-PD Triggers (August 2021).
El Cheapo Modules: LCR-T4 Digital Multi-Tester (February 2021)Įl Cheapo Modules: USB-PD chargers (July 2021).
El Cheapo Modules: Mini Digital AC Panel Meters (January 2021).
El Cheapo Modules: Mini Digital Volt/Amp Panel Meters (December 2020).
New w-i-d-e-b-a-n-d RTL-SDR modules, Part 2 (June 2020).
New w-i-d-e-b-a-n-d RTL-SDR modules (May 2020).
El Cheapo modules: 8-channel USB Logic Analyser (February 2020).
El Cheapo modules: “Intelligent” 8x8 RGB LED Matrix (January 2020).
Three I-O Expanders to give you more control! (November 2019).
El Cheapo Modules: AD584 Precision Voltage References (July 2019).
El Cheapo Modules: Long Range (LoRa) Transceivers (June 2019).
El Cheapo Modules: Class D amplifier modules (May 2019).
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El Cheapo Modules 23: Galvanic Skin Response (March 2019).
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El Cheapo Modules 22: Stepper Motor Drivers (February 2019).El cheapo modules, part 21: stamp-sized audio player (December 2018).El cheapo modules, part 20: two tiny compass modules (November 2018).El Cheapo modules Part 19 – Arduino NFC Shield (September 2018).El Cheapo: 500MHz frequency counter and preamp (July 2018).El Cheapo Modules 17: 4GHz digital attenuator (June 2018).El Cheapo Modules 16: 35-4400MHz frequency generator (May 2018).El Cheapo Modules 14: Logarithmic RF Detector (March 2018).El Cheapo Modules 13: sensing motion and moisture (February 2018).El Cheapo Modules 12: 2.4GHz Wireless Data Modules (January 2018).El Cheapo Modules 11: Pressure/Temperature Sensors (December 2017).El Cheapo Modules Part 10: GPS receivers (October 2017).El Cheapo modules Part 9: AD9850 DDS module (September 2017).El Cheapo Modules: Li-ion & LiPo Chargers (August 2017).El Cheapo Modules, Part 7: LED Matrix displays (June 2017).El Cheapo Modules, Part 6: Direct Digital Synthesiser (April 2017).El Cheapo Modules, Part 5: LCD module with I☬ (March 2017).El Cheapo Modules from Asia - Part 4 (February 2017).El Cheapo Modules From Asia - Part 3 (January 2017).El Cheapo Modules From Asia - Part 2 (December 2016).El Cheapo Modules From Asia - Part 1 (October 2016).
#Rowe ami jukebox 200 selection stereo full
You can view 0 of the 112 pages in the full issue.įor full access, purchase the issue for $10.00 or subscribe for access to the latest issues. This is only a preview of the July 2021 issue of Silicon Chip.
Notes & Errata: Advanced GPS Computer, June 2021 Mini Arcade Pong, June 2021 Refined Full-Wave Motor Speed Controller, April 2021 USB Flexitimer, June 2018.
Vintage Radio: The Rowe AMI JAL-200 jukebox.
Serviceman's Log: I’ve repaired planes before, but never tanks.
Project: Advanced GPS Computer – Part 2.
Project: Silicon Labs-based FM/AM/SW Digital Radio.
Circuit Notebook: Adding shuffle feature to low-cost MP3 player module.
Feature: El Cheapo Modules: USB-PD chargers.
Feature: How USB Power Delivery (USB-PD) works.
Publisher's Letter: Software: too many bugs, too many updates.
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SA618F22 is an embedded full duplex transmission module, combining wireless digital and wireless audio.Users can not only wirelessly transmit data through serial ports, but also achieve wireless transmission of voice through I2S or analog audio interfaces.
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Hansong adopts Summit Wireless' low-cost IoT module for adding wireless cinema to smart TVs
Hansong adopts Summit Wireless’ low-cost IoT module for adding wireless cinema to smart TVs
Summit Wireless Technologies announced that Hansong an Original Design Manufacture (ODM) to major audio brands will offer a new technology reference platform targeting wireless soundbar, audio hub, and speakers based on Summits internet of things (IoT) transceiver module. The new low-cost module named “Discovery” is powered by Summit Wireless advanced Wi-Fi compatible software designed for fixed…
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WiFi Signal
Wifi Signal Strength
Wifi Signal Strength
Urant WiFi Range Extender 1200Mbps Signal Booster Range Repeater, Wireless WiFi Amplifier Add Coverage up to 1200 sq.ft, in Your Home, Extend 2.4GHz & 5GHz Wi-Fi 3.6 out of 5 stars 2,700 $44.99 $ 44. 99 $59.99 $59.99. Wi-Fi (/ ˈ w aɪ f aɪ /) is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. A little digital readout of your WiFi signal strength. It can also show you the name of the network you're connected to, or the signal strength as a raw percentage. Get improved cell phone coverage where it's needed most. Try the weBoost Home Room, designed to increase cellular connectivity and signal strength for one room or up to 1,500 sq. Affordable connectivity at home, the Home Room is capable of reaching far away cell towers and is the ideal solution for improving cell coverage inside any small home or apartment.
10 Ways to Boost Your Wi-Fi Signal. Check out these quick tips to boost your wireless signal from your router, extend and optimize your Wi-Fi coverage, and speed up your surfing.
Introduction
This document covers the basics of how wireless technology works, and how it is used to create networks. Wireless technology is used in many types of communication. We use it for networking because it is cheaper and more flexible than running cables. While wireless networks can be just as fast and powerful as wired networks, they do have some drawbacks.
Reading and working through Learn Networking Basics before this document will help you with some of the concepts used in wireless networks.
In addition to some background information, this document covers six basic concepts:
Wireless signals - what they are and how signals can differ.
Wireless devices - the differences and uses for receivers and transmitters.
Wi-Fi Modes - how networks are made up of clients, access points, or ad-hoc devices.
Wi-Fi Signals - the unique characteristics of Wi-Fi, and how signals are organized.
Power and Receiver sensitivity - how far each wireless device can go, and how well a router can listen and filter out interference and noise.
Antennas - how the type of antenna changes the way the router broadcasts.
Reading through this material should take about an hour. Working through the activities, or diving deeper into the subject with a group may take longer.
What is a wireless signal?
Wireless signals are important because they can transfer information -- audio, video, our voices, data -- without the use of wires, and that makes them very useful.
Wireless signals are electromagnetic waves travelling through the air. These are formed when electric energy travels through a piece of metal -- for example a wire or antenna -- and waves are formed around that piece of metal. These waves can travel some distance depending on the strength of that energy.
For more on how electromagnetic signals work, check the #External Resources section at the end of this document.
Types of Wireless Signals
There are many, many types of wireless technologies. You may be familiar with AM and FM radio, Television, Cellular phones, Wi-Fi, Satellite signals such as GPS and television, two-way radio, and Bluetooth. These are some of the most common signals, but what makes them different?
Frequency
First of all, wireless signals occupy a spectrum, or wide range, of frequencies: the rate at which a signal vibrates. If the signal vibrates very slowly, it has a low frequency. If the signal vibrates very quickly, it has a high frequency. Frequency is measured in Hertz, which is the count of how quickly a signal changes every second. As an example, FM radio signals vibrate around 100 million times every second! Since communications signals are often very high in frequency, we abbreviate the measurements for the frequencies - millions of vibrations a second is Megahertz (MHz), and billions of vibrations a second is Gigahertz (GHz). One thousand Megahertz is one Gigahertz.
Example Frequency Ranges
Below we can see the span of frequencies that are commonly used in communications. Broadcast transmitters for AM, FM and Television use frequencies below 1000 MHz, Wi-Fi uses two bands at higher frequencies - 2.4 and 5GHz. Cellular phones use many different frequencies.
The frequencies from left to right:
AM Radio: Around 10MHz
FM Radio: Around 100MHz
Television: Many frequencies from 470MHz to 800MHz, and others.
Cellular phones: 850MHz, 1900MHz, and others
Wi-Fi: 2.4GHz
Satellite: 3.5GHz
Wi-Fi: 5GHz
Modulation
In addition to having different frequencies, wireless signals can be different in the way they convey information. A wireless signal needs to be modulated--or changed--to send information. There are many types of modulation, and different technologies can use one or more types to send and receive information. In the two examples below -- AM and FM radio -- the M stands for modulation. The type of modulation is what makes them different.
Example one: AM radio. The A in AM comes from Amplitude - the energy or strength of the signal, operating at a single frequency. An un-modulated AM wave might look like:
And a modulated AM radio wave has higher and lower energy (amplitude) waves indicating higher and lower audio frequencies in the signal:
From left to right, we have the normal, un-modulated wave, then the lower amplitude wave (representing low points in audio waves), then the higher amplitude wave (representing crests or high points in audio waves).
A more detailed version of an AM signal is below:
The audio signal is the wave on the top, with the corresponding Amplitude Modulated wave below it.
Example two: FM radio. The F in FM comes from Frequency - defined by how quickly the wave vibrates every second. An un-modulated FM wave might look like:
And a modulated FM radio wave has higher and lower frequencies indicating higher and lower audio frequencies in the signal:
From left to right, we have the normal, un-modulated wave, then the lower frequency wave (representing lower audio amplitudes), then the higher frequency wave (representing higher audio amplitudes).
The type of modulation various technologies use to communicate can be very different, and are often not compatible. Satellite equipment cannot speak directly to your laptop or smartphone, which uses Wi-Fi to send and receive information. This is because the radios in different devices can listen only to certain types of modulations and frequencies.
As an example, some broadcast radio receivers have a switch to select between AM and FM signals, for two reasons: they use different frequencies to transmit, and they use different modulation types. If you try and listen to an AM signal with a radio in FM mode, it won’t work. The opposite is also true - in AM mode, an FM signal doesn’t make sense to the receiver. It is important that transmitters and receivers use the same frequencies and modulation types to communicate.
Devices in your daily life use many types of wireless signals. Look at the table below to see the various frequencies and types of modulation each uses:
Technology or deviceType of wireless signal
Analog video - Amplitude modulated from 50MHz to 800MHz
Digital video - complex modulation from 200MHz to 800MHz
Voice - analog or digital modulation from 800MHz to 900MHz
3G, 4G or LTE - digital modulation from 1700MHz to 1900MHz and others
Bluetooth - digital modulation at 2400MHz
Walkie-talkie / two-way radio - analog AM, FM or digital modulation over many frequencies
Many types of signals - voice, audio, video, data
Many modulation types - analog and digital
Many, many frequencies - 3400MHz, 5900MHz, 10.7GHz, 14.5GHz, 23GHz, and many others.
Wi-Fi - digital modulation at 2400MHz or 5000 to 5800MHz.
Bluetooth - digital modulation at 2400MHz
AM Radio - AM modulation from 0.6MHz to 1.6MHz
FM Radio - FM modulation from 88MHz to 108MHz
Nearly every device or technology uses a different wireless frequency and modulation. This means most devices can only understand a very specific kind of wireless signal.
Receivers and Transmitters
When a device sends out a wireless signal, it is called a transmitter. When another device picks up that wireless signal and understands the information, it is called a receiver. In the case of FM radio, there is one transmitter--owned and operated by the radio station--and many receivers that people listen to the station with. When a device has both a transmitter and a receiver, it is sometimes called a transceiver. Devices such as routers can both transmit and receive, which is what makes them useful for building networks--you probably want to be able to send messages to your neighbors and out to the world, as well as receive messages!
Quick Activity: What devices do you own or use frequently that are transmitters, receivers or transceivers? Fill in some examples below each type:
TransmitterReceiverTransceiverExamples: Examples: Examples:
Do you use more transmitters, receivers, or transceivers throughout the day? What is different about the way you use each of these?
Wi-Fi Signals
When building a network, you will be using Wi-Fi technology, which has some unique characteristics you will need to know.
There are two types of Wi-Fi signal, based on the frequencies they use:
2.4GHz - A lower frequency, this is the more common Wi-Fi technology in use today. Many devices use it, so the signals can become more crowded and interfere with each other. It can pass through walls and windows fairly well.
5GHz - This higher frequency technology is used by fewer devices, and can sometimes achieve higher speeds because the frequencies are less crowded. It cannot pass through walls and windows as well as the 2.4GHz band signals, so the range of 5GHz technology is often shorter.
These two types of Wi-Fi are called the Frequency Bands, or just Bands for short.
Each frequency band used in Wi-Fi is divided up into multiple 'channels'. Each channel is similar to rooms at a party - if one room is crowded it is hard to carry on a conversation. You can move to the next room, but that might get crowded as well. As soon as the building is full, it becomes difficult to carry on a conversation at the party.
2.4GHz Band For the 2.4GHz band, there are 14 channels total. Unfortunately, these channels overlap, so they aren’t all usable at the same time. If you are setting up a mesh network -- all of the mesh links will need to be on the same channel.
The available channels vary depending on where you are in the world. For example, in the United States channels 12, 13 and 14 are not allowed for Wi-Fi, as those frequencies are used by TV and satellite services. If you are building networks in the United States, you can only use channels 1 through 11. In the rest of the world, channels 1 through 13 are generally usable, and in a few places channel 14 is available.
Despite that, the best channels in the United States and most of the world to use for 2.4GHz band equipment are channels 1, 6, and 11. This will minimize interference caused by partially overlapping Wi-Fi signals:
You could use other sets of Wi-Fi channels, as long as they are 5 channels apart - for instance 3, 8 and 13. This may not be optimal though, as channels 1 and 2 would be unused, and in many places in the world channel 13 is not available. Wherever you are, try and check what channels are most in use, and plan your network to use a channel that doesn't overlap.
5GHz Band The 5GHz frequency band is much wider and has more channels, so the diagram is a bit more extensive. Fortunately, these channels do not overlap, so you don’t have to worry about picking non-standard channels like in the 2.4GHz band.
There are many more channels available in the 5GHz band, so it should be easier to select a channel in this band that doesn’t cause interference. This may not always be true -- more and more wireless equipment is starting to use the 5GHz
In the United States, only channels available for building mesh networks are 36, 40, 44, 48, 149, 153, 157, 161, and 165. There are other channels available for Access Points or other types of community networks, but those channels won’t work with mesh wireless. The best place to check what is allowed in your area is online. Links are provided in External Resources at the end of this document.
When setting up your wireless network, you will need to think about what frequency band to use, and what channel to use.
Power and Receiver Sensitivity
Many people want to know how far wireless signals will go. Knowing this is important for planning a network, as the power of the routers will affect the design of the network, and how much equipment is needed.
Different Wi-Fi routers can have very different power levels. Some are much stronger: they have more speaking or transmitting power than others. Some are very good listeners: they have what is called a better receive sensitivity. These two elements define how well wireless devices will connect, and how far away a receiving Wi-Fi router can be.
Manufacturers do not usually publish information about their router’s transmit power or receive sensitivity. Instead, the manufacturer will give a generic “range” rating to their routers, usually relative to each other. In some cases, usually with more business or professional oriented equipment you can find the information for transmit power and receive sensitivity.
A router’s transmit power can be measured with two scales -- milliwatts (mW) or dBm:
A milliwatt is one thousandth (that’s 1/1000) of a single watt - which is a generic measurement of power. For instance, a light bulb might be 40 watts. A router will have an output power of 100mW, which is 400 times less!
A dBm is a relative measurement using logarithms. One milliwatt is 0 dBm. 10 milliwatts is 10 dBm; 100 milliwatts is 20 dBm, and so on. This is the scale that many network designers use to calculate if longer wireless links will work.
A few examples of the transmit power levels in common Wi-Fi hardware is below:
10mW (10dBm): Laptop or smartphone, or very low cost Wi-Fi router. About 25 to 50 meters
100mW (20dBm): Indoor home or office router. About 50 to 100 meters
100mW (20dBm): Outdoor sector router. About 5 to 10 kilometers
500mW (1/2 Watt or 27dBm): Outdoor, long distance focused routers. About 10 to 20 kilometers or more
Wireless transmitter power is only one half of the connection. The Wi-Fi receiver has a range of power levels it can hear--the “listen power” in the diagram above. This is also known as the receive sensitivity. The receive sensitivity values are generally rated in dBm, and are usually in the range of -40dBm to -80dBm. The negative number indicates a very small signal -- tiny fractions of a milliwatt.
Below we have an example of two routers in relatively close range. They have a good connection because the signal strength between them is strong.
As a receiver moves away from a wireless router, the signal it hears will get “quieter” -- in other words, the power it receives will go down. Below, we can see the same routers, but with more distance between them. In this case, the routers have a weaker connection because the signal is near the limit of what the routers can hear. The speed between the routers will be less.
If the router moves too far away from the transmitter, it won’t be able to receive any signal, either due to the signal being too weak or other signals interfering, and the routers will disconnect. Below we can see the two routers have disconnected, as there isn’t enough signal.
The optimal signal range for outdoor wireless equipment is between -40dBm and -60dBm. This will ensure the connection can maintain the highest bandwidth possible.
Antennas
Wireless routers have different types of antennas. Some routers will have antennas built in, and sometimes the routers will have a choice of antenna you can attach to the router. There are many specific types of antennas, but three basic types are used most of the time, and will be useful in building a wireless network. The first type of antenna is also the most common--omnidirectional.
Omnidirectional Antennas
An omnidirectional antenna sends a signal out equally in all directions around it.
Using omnidirectional antennas has the benefit of creating connections in any direction. You don’t have to do as much planning to connect with multiple neighbors or buildings. If there is enough signal between nodes, they should connect.
The all-direction strength of these antennas comes with the drawback of transmitting a weaker signal. Since the signal is going in all directions, it spreads out and gets weaker with distance very fast. If nodes or clients are far away, they may not connect well.
Also, if there are only nodes or clients in one direction of the router, then the signals going in the opposite direction are wasted:
Directional Antennas
The next type of antenna is known as directional--it sends out a signal in a more focused way. There are two main types of directional antennas:
Sector Antenna Focused Antenna Sector antennas send out a pie-shaped wedge of signal - it can be anywhere between 30 degrees and 120 degrees wide. These are often long, rectangular antennas that are separate or integrated in to a router. A focused antenna sends out a narrow beam of signal - it is normally around 5 to 10 degrees wide, but it can be a little wider as well. These are often dishes or have a mesh bowl reflecting signal behind them.
Using directional antennas has the benefit of increasing the distance a signal will travel in one direction, while reducing it in all other directions. Since the signal is all going one way, the power that would be sent out in all directions with omnidirectional nodes is now focused, increasing the power in that direction.
It can also decrease the interference received at the node. There are fewer signals coming in to the antenna, since the node is only listening to signals from the direction it is pointing. It won’t hear signals behind it or to the sides as well or at all. This reduces the signals it needs to sort out, and allows it to focus on other signals more, increasing the quality of those connections.
However, directional antennas also have the drawback of requiring more planning to create links in your neighborhood. Since you are defining and limiting the areas where wireless signals go, you need to think about how those signals cover your neighborhood. If there are areas that are then left out, how will those areas be included in the network?
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Also, the node has a very powerful signal in a single direction. If omnidirectional units, or lower power units such as laptops, are connecting to the node, they may not connect properly. The laptop will hear the node very well, but the directional node may not hear the laptop. This will create the situation where it looks like there is a strong signal, but you cannot connect.
Quick Activity: What are the best uses for the different kinds of antennas?
Antenna TypeBest UsesOmnidirectional Sector Focused ______________________________ ______________________________ ______________________________ ______________________________ ______________________________ ______________________________
What would the best antennas to use for building a neighborhood network?
Definitions
Omnidirectional
When a node has an omnidirectional antenna attached, it can send and receive wireless signals in all directions around it equally. The signal is actually strongest out to the “sides” of the antenna. Very little or no signal comes out of the “ends” of the antenna.
Directional antenna
When a node has a directional antenna attached, the wireless signal is very strong in one direction, and has a very weak or no signal in every other direction. This generally forms a cone or wedge shaped area from the front of the antenna.
Receive sensitivity
The minimum level of a received signal required for a device to understand the signal.
Access point
A device that allows wireless devices to connect to a wired network using Wi-Fi.
Watt
A unit of power, usually written “W”. The most common power levels for Wi-Fi devices are in the range of milliwatts - or thousandths of a watt.
dBm
An abbreviation for the power ratio in decibels (dB) of the power referenced to one milliwatt (mW). 0 dBm is equal to 1 milliwatt.
Related Information
We recommend you work through Learn Networking Basics if you haven’t already. Networking concepts are important when dealing with wireless.
External Resources
If you are interested in learning more about Wi-Fi and wireless technology, there is a lot of information out there. Good books to read for background and more information include How Radio Signals Work by Sinclair (ISBN 0070580588), and 802.11 Wireless Networks: The Definitive Guide by Gast (ISBN 0596100523).
There are also excellent documents on Wikipedia about Wi-Fi and wireless signals. Similarly, an Internet search will most likely answer any questions you can think of, as wireless is a very popular technology.
For more information on what frequencies are available in your country or regulatory area, please see this article on Wikipedia on wireless channels.
Documentation
Commotion Construction Kit
Wireless + Networking
Download PDF
Talking about 'good signal strength' may have become part of everyday language, but what constitutes a good Wi-Fi signal, really? Do you know what it takes to be able to use demanding services like Netflix and videoconferencing over Wi-Fi?
Signal strength is measured in dBm or decibel milliwatts, which, somewhat confusingly, is expressed only in negative values (with a minus sign in front).
So what are the good and acceptable dBm values for wireless internet?
Here is what the Wi-Fi signal strength values mean
How to measure the received signal strength
To measure signal strength at a given location and time, you can use a Wi-Fi scanner. You can read more about this in our article How to find good Wi-Fi channels and bad neighbors.
The measurement you are looking for is RSSI, which is short for received signal strength indicator.
If you are running Mac OS X, you can also measure the received signal strength directly without installing anything: Hold down the Altkey and click the Wi-Fi icon in the top menu, and details of communication with the wireless access point will appear under the name of the active Wi-Fi network.
If you would like to map out the signal for an entire home, we recommend using a heat mapper to create a heat map of good and bad coverage zones. See also: Map your wireless network with a heat mapper.
Poor signal strength? Remove obstacles
Have you done your testing and concluded that the signal strength is insufficient? Clamxav vs malwarebytes. First of all:
Don't be tempted to try to amplify the transmit strength from your router / access point. You may sabotage both yourself and your neighbors in the process, and you risk breaking the law along the way. Read more about this in Don't. Boost. Your Wi-Fi Signal.
Of course, the performance and capacity of the wireless network depends on more than the signal emitted from the access point, but the most important thing you can do for the signal is:
Move the router or other access point high up and in front of any obstacles. Preferably high up on the wall.
Place your devices and access points with as much of a clear line of sight between them as possible.
Wifi Signal Strength
Get further advice on what you can do yourself to improve your home Wi-Fi in: Better Wi-Fi at Home: 18 Free Tips.
Wifi Signal Strength
Article by Jan Pedro Tumusok and Jorunn D. Newth
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Current Ham Radio News
EWS UPDATE I am glad to report, on behalf of the group, that all is going well and all is on schedule for November. The boat is chartered to leave Australia on November 3rd returning November 13th. Plans are being made around what equipment to take. The team is growing, the latest new member being […]
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VK9HR Team will be active from Willis Island, OC-007, 3 - 13 November 2021.
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“After 5 months of using this antenna, I owe a follow up as I mentioned in my original video. This antenna has been a solid daily user since I installed it. With a 5/8 wave antenna you have a better radiation pattern over a quarter wave, and a strong magnet mount keeps you from having to drill any holes or use any hard mounts on your vehicle”
Antenna
9+ BAND HEXTENNA FULL-SIZE HF+2M/220/440MHZ
November 03, 2018
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HEXTENNA 9+ BAND HEXTENNAFULL-SIZE HF+2M/220/440MHZ Pre-Orders will ship in December and are now being accepted. Price is exclusive for pre-orders on... Read more
Elecraft AX1 Multi-Band Whip Antenna
October 07, 2018
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Elecraft AX1 – Portable HF antenna Elecraft AX1 Ultraportable 17/20 Meter Antenna System (FAQ) Q: What is the AX1? A: The AX1 is a dual-band (20... Read more
EAntenna 3BMOX 7 el. Yagi 10/15/20m band
January 21, 2016
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EAntenna 7 el. Yagi 10/15/20m band Full coverage bandwidth in the three bands Awesome gain in lower 3,2m boom leght ... Read more
OCF-8010E-3K OCF Antenna Windom 80/40/30/20/15/12/10m
July 17, 2015
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This is OCF antenna also known as Windom antenna fed at 19% of one end. Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF anten... Read more
HF Mobile Autotune Whip Antenna 1.6-30 MHz 200W – STEALTH 9360
February 19, 2015
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HF Mobile Autotune Whip Antenna 1.6-30 MHz 200W Stealth 9360 Automatic Tuning Mobile HF Antenna automatically tunes in 0.35 sec to any frequency throu... Read more
Review
Remote Antenna Tuners [PodCast] – “ARRL The Doctor is In”
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“Remote Antenna Tuners” is the topic of the just-released episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Read more
Silphase R1 receiver [ VIDEO ]
August 03, 2020
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Silphase R1 receiver. Telescoping antenna 1.15m. Location is city center Warsaw, Poland. Outside temperature +4 Celsius degrees. Frequency 1413 kHz. I... Read more
MFJ-269C Testing Coax Cable Faults and Length
April 28, 2017
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Best Ham Radio Hotspot for Early 2021 – DMR YSF DSTAR Hotspot
January 05, 2021
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What is the Best Ham Radio Hotspot coming out of 2020 into 2021? Today I talk about my favorite Ham Radio Hotspot for DMR, YSF, DSTAR and other modes... Read more
New Design QYT KT-8900D Dual band Quad Display Mobile with Big LCD Screen
December 02, 2016
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QYT KT-8900D Dual Band Quad-standby Colorful Screen Mini Mobile Vehicle-mounted Radio TX & RX 136-174MHz & 400-480MHz 200 Channels FM Radio Fe... Read more
Equipment
Xiegu X108G
November 19, 2015
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X108G Outdoor is X108’s upgraded version, It is a compact single conversion HF transceiver covering 0.5 to 30 MHz. Special optimized the Receive Chann... Read more
CW TOUCH PADDLES
November 09, 2015
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Product Features and use: · Electronic keyer paddles using electrostatic touch paddle technology · Because there are no moving par... Read more
Icom IC-7200 HF/50MHz Transceiver
July 31, 2015
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Icom IC-7200 IF DSP The latest IF DSP technology is employed in the IC-7200. While the IC-7200 is an entry-class transceiver, advanced digital feature... Read more
“New Elecraft K4s in production
September 02, 2020
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K4 TRANSCEIVER We’re pleased to announce our new top of the line transceiver, the Elecraft K4. It combines the latest in direct-sampling technology wi... Read more
First Videos CRT 2000 !
February 29, 2016
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CRT 2000 Videos – 40 AM / FM channel multistandard European – Power: 4 Watts AM / FM – Supply voltage: 12/24 Volt – 4 storable... Read more
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Spacewalk Could Return ARISS Ham Station in ISS Columbus Module to the Air
March 09, 2021
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Amateur Radio on the International Space Station (ARISS) reports that efforts to determine what’s keeping the ham station in the ISS Columbus module o... Read more
23-Centimeter Band in Region 1 Under Discussion Ahead of WRC-23
March 09, 2021
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In advance of World Radiocommunication Conference 23 (WRC-23), the amateur radio allocation at 1240 – 1300 MHz (23 centimeters) remains in the spotlig... Read more
Report: Radio Amateurs in Israel Lose Access to Much Microwave Spectrum
March 09, 2021
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Radio amateurs in Israel have lost much of their spectrum between 1 and 6 GHz and suffered a “draconian” power reduction on 10 GHz, according to a rep... Read more
Maritime Radio Day is Set for April
March 09, 2021
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The 10th anniversary of Maritime Radio Day (MRD) will take place from 1200 UTC on April 14 to 2200 UTC on April 15. The annual event commemorates near... Read more
North Carolina Radio Amateurs Adapt Tailgating Hamfest to the COVID-19 Pandemic
March 09, 2021
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With most hamfests canceled due to the COVID-19 pandemic, some radio amateurs in Raleigh, North Carolina, have come up with a way to adapt with a tail... Read more
The post Shark Antennas, 48″ 2m/6m/70cm 5/8 Wave Magnet Mount Antenna Review/Update appeared first on QRZ NOW - Ham Radio News.
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-The dream of completely wireless connection between radio and computer is a reality with Firmware 1.20 on the ICOM IC-705. I know have a few of my computers setup to connect to my 705 on my home wifi AND in access point mode for fully portable control of the ham radio for running digital modes like JS8Call, WSJT-X and Winlink.
Antenna
KT31WARC, 18.068-18.168 / 24.890-24.990 MHZ
November 03, 2015
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The updated KT31WARC offers flexibility in size and frequencies. It is truly unique in many ways. The KT31WARC covers 12,17 and 20 or 30 meters. 20 or... Read more
New ! SteppIR SARK-110 Antenna Analyzer
December 28, 2014
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The SARK-110 is a completely new design concept for an Antenna Analyzer. This is a truly pocket size device, so you can take it anywhere. It of... Read more
Overview of the LNR W4OP Loop
March 12, 2018
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NR Precision’s newest antenna market entry is the phenomenal new LOOP antenna designed by a degreed engineer. The W4OP Loop has already received... Read more
Rotatable 160 Meter Receiving Loop – WB6RSE Wins July QST Cover Plaque Award
July 22, 2015
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The winner of the July 2015 QST Cover Plaque award is Steve Lawrence, WB6RSE, for his article “Rebuilding a Receiving Flag Antenna for 160 Meters.” Th... Read more
DX Commander Expedition Portable Antenna
April 23, 2020
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A first look at the Portable version of the world famous DX Commander vertical antenna for Ham Radio. Read more
Review
Icom IC-705 Interview with Ray Novak from Orlando Hamcation 2020
February 08, 2020
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Icom IC-705 Read more
Your Questions Answered (Mobile Install, Inexpensive Radios, Power Supplies) – Ham Radio Q&A
December 07, 2018
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The new Malahit-DSP: A portable all-in-one wideband SDR receiver
November 12, 2019
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Technical Specifications 1 MHz to 1000 MHz. Bandwidth 160 kHz. Modulation types AM, WFM, NFM, LSB, USB. Powered by one Li-ion cell. Consumption up to... Read more
Unbox and Test MFJ-849 Digital SWR Meter
July 04, 2017
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MFJ-849$ 169.95 Each Read more
Why even good Antennas need good Coax Cable
January 14, 2017
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By Dennis Walter “Nothing’s going on shortwave anymore!” Really? Many ham radio operators and SWLs keep telling me that nothing is going on on shortwa... Read more
Equipment
Anytone AT-6666 All-Mode 10 Meter Mobile
September 10, 2015
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Anytone AT-6666 All-Mode 10 Meter Mobile 60 watts SSB – 360 Memories CTCSS / DCS Option Included Programming Cable Included General Speci... Read more
ACOM ATU04AT- REMOTE AUTOMATIC ANTENNA TUNER AND SWITCH
September 27, 2017
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Remote matching of antennas – less losses in the feed line. Designed for installation in a shack, under a shed, or in open (see mounting kit opt... Read more
DX Engineering – RXSHARE Audio Switch DXE-RXSHARE
January 17, 2019
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Audio Switch, Control Box, Independent Selection of Audio from One or Two Transceivers to Two Headphones, Passive Device, Each DX Engineering RXSHARE... Read more
ICOM IC-705 SDR transceiver Update
May 21, 2020
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IC-705 HF/VHF/UHF Mobile Transceiver – Coming Soon! The new portable HF/VHF/UHF IC-705 has many great features such as SDR platform, internal ba... Read more
Airspy HF+ Discovery is the Most Refined HF/VHF SDR
November 24, 2020
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The Airspy HF+ Discovery sets a new standard in terms of reception performance with extra pre-selectors for all the supported bands and a New DSP Core... Read more
News
Spacewalk Could Return ARISS Ham Station in ISS Columbus Module to the Air
March 09, 2021
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Amateur Radio on the International Space Station (ARISS) reports that efforts to determine what’s keeping the ham station in the ISS Columbus module o... Read more
23-Centimeter Band in Region 1 Under Discussion Ahead of WRC-23
March 09, 2021
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In advance of World Radiocommunication Conference 23 (WRC-23), the amateur radio allocation at 1240 – 1300 MHz (23 centimeters) remains in the spotlig... Read more
Report: Radio Amateurs in Israel Lose Access to Much Microwave Spectrum
March 09, 2021
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Radio amateurs in Israel have lost much of their spectrum between 1 and 6 GHz and suffered a “draconian” power reduction on 10 GHz, according to a rep... Read more
Maritime Radio Day is Set for April
March 09, 2021
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The 10th anniversary of Maritime Radio Day (MRD) will take place from 1200 UTC on April 14 to 2200 UTC on April 15. The annual event commemorates near... Read more
North Carolina Radio Amateurs Adapt Tailgating Hamfest to the COVID-19 Pandemic
March 09, 2021
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With most hamfests canceled due to the COVID-19 pandemic, some radio amateurs in Raleigh, North Carolina, have come up with a way to adapt with a tail... Read more
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Many thanks to SWLing Post contributor, Michael Ye (BD4AAQ), for the following guest post: In the Loop: PL-990 and LA400, a Perfect Match by Michael Ye (BD4AAQ) I have been a happy owner of Tecsun’s PL-880 word band receivers for years. In fact I have two PL-880 radios, one sitting at home and the other staying […]
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Many thanks to SWLing Post contributor, Paul Walker, who shares the following announcement: Tune into WRMI for “The LIVE Friday Night Virtual Dance Party Request Party Thingy” from community station 89.5 KSKO McGrath, Alaska. The broadcast will take place on Saturday, March 20th 2021 from 0300 to 0500 UTC on 7570 kHz for the west […]
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WA7BNM Contest Calendar - 0100Z-0230Z, Mar 17
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WA7BNM Contest Calendar - 0230Z-0300Z, Mar 17
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WA7BNM Contest Calendar - 1300Z-1400Z, Mar 17
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WA7BNM Contest Calendar - 1900Z-2000Z, Mar 17
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Look for Sungki, HL1IWD/5 to be active from Goje Island, AS-081 during April 2-4, 2021. QRV on 40 & 20m; mainly CW, some FT8 using IC-706MK2 and Buddipole antenna. QSL via bureau automatically.
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Home Automation Services in Delhi NCR Technology and It's Working
X10 is really a very powerful but flexible technology that is very affordable for that regular guy to create a complete home automation and security alarm. The best benefit of while using Home Automation System in Delhi is that it's a cellular technology and utilizes your current home electrical power wiring in order to transmit as well as receive indicators from additional x10 products. So what can you do with this particular technology? Essentially, there tend to be three major steps you can take with x10 Home Automation Services in Delhi NCR they are: Security alarm, Home Automation System Provider in Delhi NCR as well as x10 entertainment management.
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Its process is the middle of the x10 technologies and originated 25 in years past by researchers in architectural firm PICO Consumer electronics with hq in the United Kingdom. These technologies were made to be utilized as "plug as well as play" cellular home social networking solutions and handheld remote control system in order to automate Home theatre Dealer in Delhi NCR and Security Automation in Delhi NCR. X10 home automation products allows interconnection associated with household electric equipments using existing electric wiring with no need for any extra wiring.
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#Bose Audio System in Delhi NCR#Security Automation in Delhi NCR#Home theatre Dealer in Delhi NCR#Home Automation System Provider in Delhi NCR
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ALCATEL USB Modem 6000 Driver Download
Program to send SMS using GSM device connected to your PC. You can set SMS notifications, integrate GSMModemDriver with the web site, work with the database or applications, receive delivery reports. Supports Flash SMS, WAP Push, USSD services.
File Name:hgsmdrv40.exe
Author:Headwind Solutions Ltd.
License:Shareware ($119.90)
File Size:2.25 Mb
Runs on:WinXP, Windows2000, Windows2003, Windows Vista
Available in this download is the current modemdriver for 3Com modems bought before January 1996, operating under Windows 95/NT 4.0. Copy this file onto a blank floppy disk. Remove all Sportster modems in Control Panel/Modems. Shut down and restart. ..
File Name:3Com Modem Driver
Author:3COM
License:Freeware (Free)
File Size:47 Kb
Runs on:Windows 95, Windows NT
We are working to write a free modemdriver running on microcontroller, that extend the MCU serial line by way of standard rs232 modem. Join on this project if you can work for this.
File Name:Microcontroller Modem DriverFirmware
Author:www_infrarossi_it
License:Freeware (Free)
File Size:
Runs on:Windows
The aim of this project is to develop a methods library (a JAVA API) for managing and programming MIDlet application for the SIEMENS TC65 GSMMODEM in order to make easier the applications development for this device, avoiding the use of AT Commands.
File Name:SIEMENS TC65 GSM MODEM API
Author:Ing. Giancarlo Santini
License:Freeware (Free)
File Size:
Runs on:Windows
Supports different manufacturers of PL2303 based USB to serial dongles like ATEN, IOData, Elcom, Itegno, Ma620, Ratoc, Tripp, Radioshack, Dcu10, SiteCom, Alcatel, Samsung, Siemens, Syntech, Nokia, MS3303H - Some bug fixes- Added new vendor IDs. ..
C5-00 driver. My C5-00 is recognised but the pc keeps asking for a bluetooth peripheral device to make the bluetooth connection for using Ovi or PC suite. Is this a case of upgrading the bluetooth driver? And how do i get a new driver? Nokia soesn't mention C5-00 for new drivers. My last Nokia worked with bluetooth and this pc without problems. The Xerox Smart Start - Driver Installer intelligently looks at your specific system configuration and installs the appropriate drivers for printing and scanning to your Xerox device. The free Xerox Global Print Driver manages Xerox and non-Xerox printers on your network with a single, easy-to-use interface. It dramatically simplifies enterprise printer management for IT managers, making it easy to add and update printers without changing drivers. STILL NEED HELP? Want to ask other users with the same product a question? Join the conversation.
File Name:osx-pl2303-0.3.1-10.4-universal.dmg
Author:Jeroen Arnoldus
License:Freeware (Free)
File Size:123 Kb
Runs on:Mac OS X 10.4 or later
Wireless Dev Studio is an ActiveX DLL that allows you to fully handle GSM, GPRS, HSCSD and UMTS modems. Easily integrable into any application written in whichever language that supports ActiveX technology (Visual Basic, Visual C++, .NET, Borland. ..
File Name:WDSDemo.exe
Author:Net Sphaera S.n.c.
License:Shareware ($98.00)
File Size:2.3 Mb
Runs on:Win98, WinME, WinNT 4.x, Windows2000, WinXP, Windows2003
This file contains the drivers for the 3Com USBmodem product ID 00560500 for Windows This file contains the drivers for the 3Com USB modem product ID 00560500 for Windows 98.
File Name:3Com USB Modem Driver12/1/98
Author:3COM
License:Freeware (Free)
File Size:600 Kb
Runs on:Windows 98
This is a non-official driver, written in C, for the FPS200 Veridicom's fingerprint sensor with the USB interface. It is also compatible with the Fujitsu's MBF200 fingerprint capture. ..
File Name:fps200usbdriver-1-0-0.tar.gz
Author:fps200usbdriver
License:Freeware (Free)
File Size:28 Kb
Runs on:BSD; Linux
A driver for USB devices that use the KL5KUSB101 USB to Ethernet 1-Chip Controller. Written for the Netgear EA101.
File Name:kaweth-0.2.3.tar.gz
Author:kaweth
License:Freeware (Free)
File Size:13 Kb
Runs on:BSD; Linux
Superseded by the GSPCA driver in the mainline kernel. Development now at http://linuxtv.org/ (Formerly: Linux device driver for SPCA50X based USB cameras (Intel PC Camera. ..
File Name:spca50x-gcc-3.2-linux-2.4.21-0.13mdk-module-0.30.tar.gz
Author:linuxtv
License:Freeware (Free)
File Size:42 Kb
Runs on:BSD; Linux
TiVo USB Wireless Adapter device driver for Linux and Windows. The adapter users the Broadcom BCM4320 (AirForce One. Single-Chip 802.11g USB 2.0 Transceiver) chipset and portions of this project may be directly applicable to other devices using the. ..
File Name:tivownet_loadfw-0.1.tar.gz
Author:tivousbwifi
License:Freeware (Free)
File Size:83 Kb
Runs on:Windows; BSD; Linux
This is a driver for reading from an USB barcode This is a driver for reading from an USB barcode reader.
How to transfer music to Walkman player via drag-and-drop from Apple iTunes software for the Windows operating system. Transfer music to a Walkman using a computer Frequently Asked Questions About Audio Devices With Bluetooth Function. Foobar 2000 is an old favorite: an extremely modular freeware music player and library management app that comes with surprising software muscle behind its bland interface. Better all-round performance of your PC due to automatic driver updates which will keep all your devices and your PC in top condition; Common MP3 Driver Errors. The most common problem experienced with MP3 players is the inability to sync the player with your computer or problems with data transfer. Drivers bl20 music sync player.
File Name:usbbarcode.tgz
Author:usbbarcode
License:Freeware (Free)
File Size:7 Kb
Runs on:Linux
Alcatel Usb Modem 6000 Driver Download Windows 10
Available in this download is the current modem driver for 3Com modems bought before January 1996, operating under Windows 95/NT 4.0. Copy this file onto a blank floppy disk. Remove all Sportster modems in Control Panel/Modems. Shut down and restart. Driver Intel Audio. Driver G-Sensor. Bring more joy into your life with the latest news, offers and more from Alcatel.
Related:Alcatel Usb Gsm Modem Driver - Driver Modem Alcatel Usb - Alcatel Hspa Usb Modem Driver - Free Driver Modem Alcatel Usb - Gsm Usb Modem Driver
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Info:
Model: Alcatel One Touch USB Drivers Vendor:
ALCATEL Incorporated Version: 4.0, v.5.0.2153.2, v.1.0.1.2 Operating system: Windows XP, Windows Vista, Windows 7, Windows 8 Bits: 32-bit (x86), 64-bit (x64) Driver Date: 2011-01-27 Size: 24.7 mb
Alcatel Usb Modem 6000 Driver Downloads
Alcatel Usb Modem 6000 Driver Download Pc
Driver description
Download driver Alcatel One Touch USB Drivers version 4.0, v.5.0.2153.2, v.1.0.1.2 for Windows XP, Windows Vista, Windows 7, Windows 8 32-bit (x86), 64-bit (x64).
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Installation screenshots Alcatel One Touch USB Drivers
ALCATEL USB Modem 6000 Driver Download
File Name
ALCATEL_ADB_Driver_Qualcomm_ADB.zip - Qualcomm (24.7 mb) v.4.0
Download_Driver_1.0_Setup.zip - MTK (1 mb)
Alcatel Usb Driver
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3KM Transmission Distance | Low Latency | 48K Sampling Audio Transmission Module - SA356 High Power Transmission Module
In wireless audio applications, long-distance audio transmission is widely needed in many fields, such as large conference systems, public broadcasting, outdoor events, and music performances. To meet these demands, audio transmission modules must have several key features, including long-distance transmission capability, high sound quality, low latency, stability, and anti-interference ability. In order to solve the problem of ultra-long-distance audio transmission, NiceRF has launched a high-power transceiver module solution for audio transmission.
For the SA326 series module, SA356-TX is a 5W transmission module, which can be paired with the SA326-RX receiver module. The SA356-TX is an amplified 5W version of the SA316-TX application board. It starts working as soon as it is powered on, and users can directly set the module's frequency, volume, and other parameters using PC software, significantly simplifying the development process. This product is widely used in scenarios requiring high audio quality.
Advantages of Audio Transceiver Module
1.Long-Distance Transmission: transmitting range 3000 meters in open area
Transmission distance is a crucial parameter for long-distance audio transmission. The SA356 module, equipped with a 5W transmission power, can achieve a transmission distance of 3000 meters in open, unobstructed environments. This makes it highly suitable for applications requiring wide coverage, such as large outdoor events and public square broadcasting.
2.Sound Quality Requirements: signal-to-noise ratio is 96 dB , the frequency response range from 20 Hz to 20 kHz.
High-fidelity audio transmission is essential for long-distance audio applications. The SA356 module has a high signal-to-noise ratio 96 dB, which can significantly reduce noise during transmission and ensuring purity of the audio signal. Additionally, its frequency response range from 20 Hz to 20 kHz covers the entire audible spectrum, from low bass to high treble, ensuring comprehensive transmission fidelity. This is particularly crucial for scenarios such as music performances and conference speeches that require high-quality audio, delivering an exceptional auditory experience.
Low Latency: Latency is less than 3ms
In real-time audio applications, latency is a critical factor, whether for live performances or video conferences where audio-video synchronization is crucial. The SA356 module maintains latency from microphone input to audio output within 3 milliseconds, almost negligible. This ensures perfect synchronization between sound and visuals, enhancing user experience and making it highly suitable for real-time applications.
Stability and Anti-Interference Capability: The module utilizes digital modulation scheme pi/4 DQPSK, occupying a bandwidth of less than 300 KHz.
In long-distance audio transmission, the stability of the signal and its resistance to interference directly impact audio quality. The SA356 module utilizes pi/4 DQPSK digital modulation, known for its strong anti-interference capabilities and transmission stability. Additionally, it occupies a bandwidth of less than 300 KHz, greatly enhancing spectral efficiency and reducing the likelihood of interference. This allows the SA356 module to maintain stable audio transmission even in complex wireless environments.
5.Transmission Rate and Sampling Rate：Transmission Rate 204.8 Ksps, Sampling Rate 48 KHz
To achieve high-quality audio transmission, transmission rate and sampling rate are crucial parameters to be considered. The SA356's 204.8 Ksps transmission rate and 48 KHz sampling rate ensure high fidelity and clarity of audio signals during transmission. A high sampling rate captures more sound details, providing a richer and more realistic audio experience, meeting the requirements for professional audio transmission.
SA356 Module Features
UHF frequency band：500 MHz
The transmission distance is 3000 meters in the open area
Audio signal to noise ratio: 96 dB
Frequency response: 20 Hz-20 KHz
The delay from microphone input to audio output is less than 3ms
Digital modulation method: pi/4 DQPSK
Occupied bandwidth: <300 KHz
Transmission rate: 8 Ksps
Sampling rate: 48 KHz
Electrical Characteristics
In summary, the SA356 audio module is very suitable for long-distance audio transmission in terms of transmission distance and sound quality. It is suitable for wireless microphones, large-scale outdoor activities, public broadcasting and other systems
For details, please click：https://www.nicerf.com/products/ Or click：https://nicerf.en.alibaba.com/productlist.html?spm=a2700.shop_index.88.4.1fec2b006JKUsd For consultation, please contact NiceRF (Email: [email protected]).
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