[k3ng] built his own automatic antenna tuner. First, it measures the SWR of the line by using a tandem match coupler. This device allows the forward and reflected signals on the line to be extracted.

Antenna tuning at HF frequencies is something that radio amateurs learn as part of their licence exam, and then hone over their time operating. A few basic instruments and an LC network antenna ...

Ham Radio Deluxe and Rig Control API Server Compatible. (Arduino Due or Teensy) This will allow the tuner to control any radio, regardless of the brand or communication protocol. Allowing to switch ...

A homemade antenna tuner can increase the frequency range and transmitting power of your CB radio. The tuner matches the impedance, or resistance to electrical flow, of the antenna to the radio, ...

Yaesu FC-1000 / FC-800 started with buying a Yaesu Automatic Antenna Tuner FC-1000 w/o control unit ... I wrote a python script with slider and radio buttons. Best band settings were programmed to ...