The friend’s radio didn’t come with a frequency display, and buying the add-on would cost more than the radio did. So [Todd] has set out to build an Arduino frequency counter for a Kenwood TS ...

Ham radio is no different. ... I do agree that it’s better to use non-ham frequencies above 50 ... times have changed from analog to digital mode so it is about ham radio where we have to accept ...

The Sierra 303B debuted circa 1974, covers a frequency range of 9 kHz–3.3 MHz, has AM/LSB/USB mode selection, a large (4 in. x 3 in.) signal meter that’s internally calibratable, selectable input ...

Ham radio operators are sounding the alarm over the latest threat to their beloved hobby—and this time, it is coming from Wall Street. A group of high-frequency trading firms is asking the ...

A dedicated group here and others across the U.S. test their emergency skills by seeing how many contacts they can make in 24 hours.