You can build a cable using an FTDI USB-to-TTL adapter. Connect TX to radio RX , RX to radio TX , and Ground to radio GND . Note that you may need to use the FT_PROG utility to invert the signals depending on your adapter. 3. Drivers
screen. Here you can enter frequencies, set channel spacing (12.5/25kHz), and assign CTCSS/DCS tones. Programmable Keys tait tm8115 programming software