MDA IS Is anyone using this wave? Keep your nose to the finals Use your senses to detect trouble in your ham radio transceiver.
MDA RO Roman Piksaykin A simple WSPR beacon with GPS time reference Several days ago I tested a WSPR beacon which operates on 40 meter shortwave band. I had managed to devise it completely on the Raspberry…
MDA SCI DO Dominic White Propagation of 7MHz signals & ionospheric refraction I’ve long been interested in the physics of RF, but never had a chance to play with it until recently. This post covers my experiments with…
