HELLENIC RADIO AMATEUR STATION
S V 2 D W G
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HELLENIC RADIO AMATEUR STATION
S V 2 D W G |
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Soundcard Interface Circuit
Circuit for connecting PTT, CW, and CAT (RXD and TXD) lines to the computer can be as follows
It is a "hardware" keying via RTS or DTR line of a serial port.
LPT port interface
