Many of us tried the old “Two tin cans connected by a string” experiment as kids. [Michael Rainey, AA1TJ] never quite forgot it. Back in 2009, he built “El Silbo”, a ham radio transmitter powered entirely by his voice. El Silbo is a Double Side Band (DSB) transmitter for 75 meters. While voice is used to excite the transmitter, it doesn’t actually transmit voice. El Silbo is a CW
“Automatic Gain Control” is the topic of the latest (February 1) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a half-million downloads since its debut in April 2016 attest to the podcast’s popularity.... Read more
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General description of the OM Power OM2200HF amplifier The linear amplifier OM2200HF is designed for all short wave amateur bands from... Read more
2017 Digital Replica Edition The VHF/UHF DX Book was written in the early to mid-1990s by a team of experienced VHF/UHF DXers and equipment developers... Read more
DM-5R — BaoFeng’s FIRST DMR Digital Radio & The FIRST DUAL BAND DMR Digital Radio! Crystal Clear Sound Quality The BaoFeng DM-5R featu... Read more
ARRL Member Had Role in Promising RF Treatment Device for Alzheimer’s ARRL member Eric Knight, KB1EHE, played a role in the development of an RF-based... Read more
The Daily Mail reports that 22-year-old Radoslaw Karwacki received the recent amateur radio Slow Scan Television (SSTV) transmissions from the ISS Rad... Read more
This is a high performance Antenna Analyser, designed particularly for ham radio. The Japanese quality shows through. We will have it back in stock sh... Read more
The K1N Navassa Island DXpedition wrapped up on schedule early on Sunday, February 15. While some seekers went away empty handed — even after hours of... Read more
With the National Hurricane Center (NHC) expecting Tropical Storm Isaias to become a hurricane again later today and make landfall this evening, the H... Read more
CubicSDR is a cross-platform Software-Defined Radio application which allows you to navigate the radio spectrum and demodulate any signals you might d... Read more
The second week of the World Radiocommunication Conference reports on the status of two issues affecting the amateur satellite service. In a report wr... Read more
PROJECT: CROSS BAND REPEATER WITH 2 BTECH MOBILES Read more
Dog Park Software is pleased to announce that version 6.20 of MacLoggerDX has been released. What’s New in this version: * Requires OS X 10.9+.... Read more
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New ! OM Power OM2200HF Amplifier 2.2 Kw
‘The VHF/UHF DX Book’, 2017 Replica Edition, is now available for free download
Baofeng DM-5R DMR Radio Test and Review
ARRL Member Had Role in Promising RF Treatment Device for Alzheimer’s
ISS Ham Radio SSTV in UK Press
COMET CAA 500 Antenna Analyser Review
K1N Navassa Island DXpedition is Ham Radio History
Hurricane Watch Net Reactivates as Hurricane Warning Posted for the Carolinas
CubicSDR v0.2.0 has been released
IARU update regarding Amateur Satellite allocations
PROJECT: CROSS BAND REPEATER WITH 2 BTECH MOBILES
MacLoggerDX Version 6.20 Released
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