Automatic Antenna Switch Controller for Kenwood (and Yaesu?) with Arduino

Tested with the Kenwood TS-590SG. Reads data from CAT, switches antennas automatically. Supports ten bands and two antennas per band. Each time there is an automatic antenna changeover, the device sounds a confirmation in Morse code indicating the newly selected antenna, for example: “160”, “20A”, “20B”, “15”, “12” etc. Selecting the other antenna for the…