. While the radio has a 2-pin accessory port, only the larger 3.5mm jack is used for programming.
Remember the golden rules:
Always start by reading the radio:
The CS-F4000 software comes in different versions (e.g., 1.1, 1.2, 2.0). Use version 2.0+ for Windows 10/11 compatibility. Older versions may only run on Windows XP/7 in 32-bit mode.