RemoteQTH - Band decoder with another TRX control output for Arduino
https://remoteqth.com/arduino-band-decoder.phpAllows you to read the frequency or band data from your transceiver and switch output relay(s) by the defined rules . Another feature allows you to send frequency to another Icom or Kenwood transceiver (synchronize tuning). Suitable for switching antennas, RX/TX filters, PA, transverters...