When satellite tracking was done by hand
Amateur satellite communications have always been a frontier activity, ever since Oscar-1 was launched into…
Satellite
components
linux
Time reference
As is well known, modern weak-signal digital modes (such as FT8, WSPR, JT65, etc.) require…
ports
serial
Serial communication
Communication Communication is the heart of our hobby, but it is also a key element…
antenna
components
Toroids
In our ham radio world, toroids are fundamental components, yet they are often poorly understood.…
accessories
antenna
Z-match
The Z-Match is an antenna tuner known for its simple construction and for the efficiency…
hack
power supply
Cable calculator
What wire gauge to use for 12V distribution in our radio station, or for mobile…
hack
power supply
Polarized connectors… and not
In amateur radio, we often work in non-ideal conditions: portable stations set up in a…
linux
Ham Package Manager
Ham Radio Package Manager was created to address a very practical need: providing amateur radio…
Technology
Waterfall
The waterfall display (or waterfall spectrogram) has become one of the most important tools in…