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Old 05-24-2010, 08:47 AM   #16
wa8yxm
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Join Date: Nov 2007
Location: Mobile, on the road
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Ok, what radio do you have?

I have a Kenwood TS-2000 and if I use the aux jack on the back to input the audio from the computer (Which is the way to do it) and use the SERIAL command (CAT command) for transmit.. It does not work (That activates the front panel microphone)

I have to use a second RS-232 converter (Prolific chips are cheap and work well here) to light the LED half of an opto-isolator I built, the Opto-transistor half takes the AUX-Jack PTT line to ground via a switch (in case I wish to disable it) and works great
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