Various configurations of the Z Match Tuner are tested for power efficiency over a wide range of antenna load conditions
Combined with Miniature Tuning Gang Capacitors, a toroidal core inductor is a means to assemble a compact Z Match assembly for Low Power (QRP) use.
Near Vertical Incidence Skywave propagation is a form of radio wave propagation used on the MF and HF bands to provide radio communications and broadcasting coverage over short distances, especially where the terrain contains obstacles.
Using a simple calculation, measure the distance between Earth and the Moon with the help of a local amateur radio station
What happens in impedance space when the various popular matching networks (antenna tuners) are adjusted
Antique radios for sale, RadioAttic publish private antique radios offered by indipendent advertisers and collectors
DX Pedition to St Helena 10-80 meters bands SSB RTTY FT8 CW by G0VDE