[Elecraft] Fldigi & K3S USB, Windows 10 setup

[Silverwater]

To Don W3FPR,
>From Howard 4x1zz,
Tnx for your explanation concerning connecting Fldigi and the K3s's USB
Audio Codec soundcard, it certainly simplified the matter. I did manage to
get it working just before receiving your response and now with your
explanation I reread past forum discussions and various manuals and put
certain doubts to rest. 
The USB Audio Codec showed as an available soundcard… no problem here. My
guess is that the driver was previously installed when I used the K3
Utility's terminal mode (de Elecraft). 
My problem was solved when I checked off (chose) "PTT via Hamlib command"
(under Fldigi Configuration/RIG/Hamlib) AND no other option was checked off.
Previously I tried (unsuccessfully) many different combinations of RTS, DTR
and VOX settings. Now with the above "PTT via Hamlib command" checked & the
PPT-KEY is set to OFF-OFF (under DATA A)… and all is working fine. You did
mention that I can use these other PTT options but I will need more of an
understanding before implementing these "other" PTT methods.
Since my goal was Hellschreiber (Feld Hell) I knew to use DATA A (I've read
that compression & TX/RX equalization are turned off in DATA A). I am also
aware the DATA A parameters need to be setup for each band. 
I set the bandwidth wide for receiving. (At a later date I'll experiment
with CW and Fldigi, but for now I do not have a use for it… except
curiosity). I didn't see that the filters & bandwidth settings defaults to a
narrow width (as you mentioned)… I've only experienced the DATA A
remembering my last settings… but I'll look out for this. 
I did not adjust the LINE OUT (LIN OUT) level and kept it at the default
setting of NOR 10. There is a warning (in the manual) that levels above 10
might overdrive the soundcard and other bad side effects. With some
experience I'll understand better how to monitor the signal using the PC via
the proper background/signal color in the FLdigi waterfall that you
mentioned.
The TX Test mode is a good and convenient feature, I've used it during this
setup and in the past. I set the soundcard's output level, via the computer
so that the ALC level showed 4 bars with the fifth flickering… the level
happened to be 75%. 
Yes, if a cable is plugged into the LINE IN jack on the back of the K3S, the
K3S's soundcard will not see the USB's input, even if opposite end of the
cable is not attached to the computer.
I made my first QSO on this mode, FELD HELL (Hellschreiber), to Canada
(14.074 MHz)… exciting is an understatement!
Thank you DON, W3FPR for assistance, patience, valuable time and kindness. 
Sincerely, Howard 4x1zz 




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