Time reference
As is well known, modern weak-signal digital modes (such as FT8, WSPR, JT65, etc.) require…
Serial communication
Communication Communication is the heart of our hobby, but it is also a key element…
Toroids
In our ham radio world, toroids are fundamental components, yet they are often poorly understood.…
Z-match
The Z-Match is an antenna tuner known for its simple construction and for the efficiency…
Cable calculator
What wire gauge to use for 12V distribution in our radio station, or for mobile…
Polarized connectors… and not
In amateur radio, we often work in non-ideal conditions: portable stations set up in a…
Ham Package Manager
Ham Radio Package Manager was created to address a very practical need: providing amateur radio…
Waterfall
The waterfall display (or waterfall spectrogram) has become one of the most important tools in…
Digital modes interface
In the world of digital modes, two generations of transceivers coexist: modern radios, which connect…