Tag Archives: Radio

HamShield for Arduino (VHF/UHF transceiver)

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hamshield

HamShield lets your Arduino talk to far away people and things using amateur radio bands (Coverage: 136-170MHz, 200-260MHz, 400-520MHz)

HamShield lets your Arduino talk to far away people and things using powerful amateur radio bands! Best of all, the hardware and software is open source!

With the power of Arduino, you can use the HamShield to build and invent amazing things in minutes!

HamShield for Arduino (VHF/UHF transceiver) – [Link]

Simple Ham Radio Bluetooth Interface

Ham radio is a popular hobby and service in which a licensed amateur radio operator explores communications equipment. Typical ham radios do not have bluetooth support, which may be hassle for some. None of the transceiver manufacturers are providing a wireless interface. However, with this ham radio bluetooth interface, communicating and listening to other entity would be easier. The device uses Bluetooth module and a circular connector. The TE’s CeeLok FAS-T connector is one of the most rugged, small, 10 GB Ethernet, field terminable I/O connector. It has been designed to perform in some of the most extreme environments in the industry, while providing substantial size and weight savings via its small shell size 8-form factor.

The design is simple that anyone can construct it without having a hard time. The device uses a Bluetooth module, a regulator, connector and few passive components. It automatically connects to the PC or any bluetooth supported device when the application is started. Wireless headset would be very useful for ham radio operators so they can freely do whatever they need to do without being stagnant. In addition, a single blue LED indicates power and pairing.

Licensed amateur radio operators communicate with each other in nearby places, across the country, around the world or even with astronauts in outer space. Hams use a variety of frequencies for communications and may operate from just above the AM broadcast band to the microwave region, in the gigahertz range. This device may be useful for other applications such as aerospace, in flight entertainment and connectivity, defense and marine environments.

Simple Ham Radio Bluetooth Interface – [Link]

World’s first fully digital radio transmitter built purely from microprocessor technology

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by Colin Jeffrey @ gizmag.com:

For the first time in history, a prototype radio has been created that is claimed to be completely digital, generating high-frequency radio waves purely through the use of integrated circuits and a set of patented algorithms without using conventional analog radio circuits in any way whatsoever. This breakthrough technology promises to vastly improve the wireless communications capabilities of everything from 5G mobile technology to the multitude devices aimed at supporting the Internet of Things (IoT).

World’s first fully digital radio transmitter built purely from microprocessor technology – [Link]

VHF Aircraft radio communications receiver

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Dilshan Jayakody published a new build, a VHF Aircraft radio communications receiver:

This is simple radio receiver project which is capable to receive aviation radio voice signals which are transmit between 118MHz to 138MHz in AM (A3E). We got initial idea of this project by reading Sverre Holm’s (LA3ZA) article about “cheap VHF receiver project

Raspberry Pirate Radio

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by Sam Freeman and Wynter Woods @ makezine.com:

This simple hack turns your Raspberry Pi into a powerful FM transmitter! It has enough range to cover your home, DIY drive-in movie, a high school ball game, or even a bike parade (depending on the stragglers).

PiFM software not only boldly enhances the capability of your Pi, but does so with nothing more than a single length of wire. This hack starts with the absolute minimum you need to run a Raspberry Pi — an SD card, a power source, and the board itself — and adds one piece of wire. It’s the coolest Pi device we’ve ever seen with so few materials.

Raspberry Pirate Radio – [Link]

TI announces 1st transistor radio, October 18, 1954

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by Suzanne Deffree @ edn.com:

Texas Instruments announced plans for the Regency TR-1, the first transistor radio to be commercially sold, on October 18, 1954.

The move was a major one in tech history that would help propel transistors into mainstream use and also give new definition to portable electronics.

TI was producing germanium transistors at the time, but the market had been slow to respond, comfortable with vacuum tubes.

However, the use of transistors instead of vacuum tubes as the amplifier elements meant that the device was much smaller, required less power to operate, and was more shock-resistant. Transistor use also allowed “instant-on” operation because there were no filaments to heat up.

TI announces 1st transistor radio, October 18, 1954 – [Link]

Arduino WebRadio player

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Arduino WebRadio player is an inexpensive WebRadio player that can plays internet audio streams up to 64-kbps and is based on mp3, aac and wma audio formats.

The main components are:

  • Arduino Pro mini board
  • ENC28J60 ethernet module
  • VS1053B mp3, aac, wma decoder
  • 84×48 dot matrix LCD module (Nokia 5110)

Arduino WebRadio player – [Link]