[Elecraft] k3S usb software silenced sidetone and no rf out

Rick WA6NHC wa6nhc at gmail.com
Sun Mar 18 11:54:56 EDT 2018


With the homebrew circuit (opto-isolator X 3, one each for PTT, Data/FSK 
and CW) I'm using, I chose to take the CW keying directly to the key 
port of the K3 (in parallel with the hand key, plus there are paddles).  
That allows me to leave Config: PTT Off-Off.

This has worked really well, except the OS wake up still keys the 
transmitter during the discovery phase of boot up.  That apparently 
can't be avoided (so I put the TX in test mode, if I'm in the shack).  I 
use real serial ports as USB has more problems in QRO RF.

This works in HRD and MMTTY.  For FT8, I have to switch from FSK D (or 
AFSK A) to Data A (or just use AFSK for RTTY and leave it alone).

That cat still gets skinned and 'normal' is overrated.  ;-)

73,
Rick nhc


On 3/18/2018 8:21 AM, Joe Subich, W4TV wrote:
>
> Note: the normal configuration for CW and PTT when using the RS-232
> *or* USB virtual port with most software is PTT on RTS and CW on DTR.
> For the K3/K3S that is CONFIG:PTT-KEY = rtS-dtR



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