Updated support for APRS and location-based modes.
Locate EPROM sockets U1 and U3 on the front left of the board. pk232mbx software updated
But the original PC‑compatible software — PK‑232 for DOS , Procomm Plus scripts , and HyperTerminal kludges — has aged poorly. Modern Windows 11 and macOS systems don’t speak serial the old way, and USB‑to‑serial adapters often mangle timing. Yet the PK‑232 refuses to fade away. Why? Because a vibrant, if niche, software update movement has emerged. Updated support for APRS and location-based modes