[Elecraft] Digital Modes and K3S

[Steve Lund]

I had a few similar problems when starting up my new Win7Pro PC today.

Check to make sure that the Mark frequency is the same on the K3 and MMTTY.
The defaults are not the same. And make sure that the TX Mark frequency is
the same as the RX frequency.

If you are using VOX make sure that it is on - got caught by that one.

Make sure that the PC line out is not muted.

Steve, K6UM


On Thu, Sep 17, 2015 at 2:05 AM, Jim Brown <jim at audiosystemsgroup.com>
wrote:

> On Wed,9/16/2015 2:20 PM, Bob McGraw - K4TAX wrote:
>
>> Are you in USB mode or TX Data mode on the radio?
>>
>
> Rich is talking about RTTY, which the K3 transmits LSB. On Elecraft
> radios, use AFSK-A or FSK-D for RTTY, which, I believe, also bypasses the
> COMP, and sets EQ to a fixed high pass filter with a cutoff in the range of
> 300 Hz.
>
> For all other data modes, use DATA-A, which puts you in USB mode, with
> COMP off and EQ bypassed or in HPF mode.
>
> Also, the K3 runs ALL digital modes including RTTY just fine with VOX.
> I've never used FSK or PTT. Simplifies things a lot.
>
> Rich -- have you turned on the MON so you can hear the audio fed to the
> TX? Do you hear anything? Are you using VOX or PTT? If VOX, play with VOX
> GAIN (single push menu) and audio gain (in all digital modes, the Mic Gain
> becomes Line In gain).
>
> Do you see any indication of ALC? You should, and 4-5 bars is where you
> want to be. Crank VOX and Line In gain. I've got K3s, not K3S, so can't
> help with USB issues. BUT -- is it possible Windoze is messing with your
> USB port assignments and/or audio switching?
>
> OH -- one other thought. RTTY Baud rate must match in the radio and the
> computer. Long Push the AFX knob (Data Mode) to see and cycle through the
> RTTY rates.
>
> These are all things I've had happen to me. :)
>
> 73, Jim K9YC
>
>
>
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