http://iz3zvo.altervista.org/program-cable-yaesu-ft-7800-7900-8100-8800-8900-using-cp2102/
https://www.vr2xkp.org/2018/03/04/a-simple-usb-programming-cable-for-yaesu-ft-90r/
https://www.vr2xkp.org/2018/03/04/a-simple-usb-programming-cable-for-yaesu-ft-90r/
You can't have too many antennas...
