Voice keyer Interface by G4AXX
This voice-keyer-interface connects between a Yaesu FT1000MP and a PC's sound card & COM port. It can be used as a voice-keyer with Contest Voice Blaster and as a voice-keyer and CW-keyer with Writelog.
Opto-couplers and screened audio transformers are used to isolate the connection between the sound card and the MP. The RS232 interface is not isolated, it connects directly from the PC to the CAT port. The PTT and audio in and out on the DVS2 connector on the rear of the MP are used.
In SSB mode using Writelog there is a switch on the Voice Keyer to put the MP into either "Record" or "Play" mode. CVB does this automatically from the COM port on on the DTR line.
In CW mode with Writelog, configure SETUP|PORTS, select "CW on a COM port", and tick the box selecting "All mode PTT on CW port RTS".
Click on a thumbnail below to see a larger picture