This project is a communication router for the Yaesu station.  It allows serial communication to four Yaesu radios from one RS232 port from the Computer. The ATMEL micro controller handles the communication between the PC and the radios and provides the RS232 to TTL conversion for the first generation PC controlled Yaesu radios. The station includes:

 

FT-736R – 144 MHz, 220 MHz, 440 MHz, and 1296 MHz transceiver

FT-737GX – HF and 50 MHz transceiver

FRG-8800 Receiver with VHF module

FRG-9600 VHF to 1 GHz Receiver

 

The ATMEL Based Radio Controller

 

 

Internal View

 

 

 

 

 

Shown with Companion Audio Switch Box

 

 

Radio Router Schematic

 

 

 

Audio Switch Box Schematic