Mike,
I know it does not fix it, but why not use DTR for PTT - or for data
modes, you can use VOX or better yet PTT via CAT command - just turn
that on in your software application. A data mode software that I am
familiar with have provision for PTT via CAT command and I think that is
the cleanest solution.
It sounds a bit like the RTS signal is 'stuck on' at the output of the
internal USB to RS-232 adapter chip in your K3S.
Consult with the Elecraft support and tech folks after the 1st of the
year. They are running with only a skeleton staff until then.
73,
Don W3FPR
On 12/27/2018 8:58 AM, Mike Greenway wrote:
I have had my K3S about 6 months and working with WSJT and DX Lab have used it
with serial data for radio control plus RTS PTT with USB audio. I have tried
several times to convert to just USB alone but I am always stymied when
choosing RTS for PTT. I can use USB for Data and Audio fine but it is when
trying to choose RTS is where the problem arises. The radio goes into transmit
when RTS is selected as PTT. I can select DTR for PTT and everything works
good but normally by convention DTR is used in keying on CW. I have gone
through the USB.SAFE and UNSAFE variations. I disconnected all data cables,
USB, RS232 and ACC Plug and still when I select RTS for PTT the radio goes into
transmit. I have tried that with SAFE and USB.SAFE set. Again DTR for PTT
works fine. All revisions are loaded and USB is selected under RS232 setting.
Any suggestions.
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