Question about CTG Auto T-Switch
I too had a similar issue, I found this:
For the TS570, the audio input on ACC2 is ONLY active when the TNC PTT line is connected to ground. This also disables the front panel microphone input (and the digital storage unit). There is another PTT line on the ACC2 connector which is essentially paralleled with the microphone switch. This is useful for a footswitch when running SSB contest style, but cannot be used for PSK input through ACC2. The RS232 interface can be used to turn on the transmitter for regular microphone audio, but not for ACC2 input audio.
The bottom line is, in order to use the ACC2 audio input for psk, you MUST use the ACC2 TNC PTT signal to transmit. The microphone PTT, the front panel "transmit" button, and the RS232 transmit command will not work.
Posted on Sep 25, 2010
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Posted on Jan 02, 2017
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