WSJTX Weird shift on different bands

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WSJTX Weird shift on different bands

n7qnm
I'm certain I'm doing something stupid, clearly I don't understand the
SSB/data shifting going on; but, I can't seem to figure this out.

 

I'm running a K3 with a SignaLink USB connected to the rear-panel and WJSTX,
primarily for FT8 (although see below).     WSJTX is set for "Ham Radio
Deluxe" rig control, VOX ptt and Data mode.

 

On 40m (Dial freq 7.074),  20m (14.074), and 10M (28.074) FT8, this works
great.   Lots of decodes and lots of QSOs.   On my P3, the passband is to
the "right of center" and the signals are right in the middle of the
passband.

 

HOWEVER, on 15M (21.074), 17M and 12M - with this setup,  I get NO decodes,
and on the P3, I see the passband in the CENTER of the display, and the
signals are all to the right of the passband.  I manually switch the radio
to USB (from data), then the P3 passband shifts to the right and I start
getting decodes; but can't transmit, since the audio source for the K3
switches from LINE to MIC.

 

Help????

 

73 de N7QNM

Clay

 

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Re: WSJTX Weird shift on different bands

Joe Subich, W4TV-4

> HOWEVER, on 15M (21.074), 17M and 12M - with this setup,  I get NO
> decodes, and on the P3, I see the passband in the CENTER of the
> display, and the signals are all to the right of the passband.
Check your data sub-mode (DATA MD) *one each band*.  The sub-mode
is stored *per band* and it would appear that yours is set to
AFSK_A (LSB centered on the dial frequency) instead of DATA_A (USB).

It is likely that the sub-mode on 15, 17, 12 is incorrect (probably
because your logging/data program set it to AFSK_A when you last
operated RTTY on those bands).

73,

    ... Joe, W4TV


On 2020-11-16 12:02 PM, [hidden email] wrote:

> I'm certain I'm doing something stupid, clearly I don't understand the
> SSB/data shifting going on; but, I can't seem to figure this out.
>
>  
>
> I'm running a K3 with a SignaLink USB connected to the rear-panel and WJSTX,
> primarily for FT8 (although see below).     WSJTX is set for "Ham Radio
> Deluxe" rig control, VOX ptt and Data mode.
>
>  
>
> On 40m (Dial freq 7.074),  20m (14.074), and 10M (28.074) FT8, this works
> great.   Lots of decodes and lots of QSOs.   On my P3, the passband is to
> the "right of center" and the signals are right in the middle of the
> passband.
>
>  
>
> HOWEVER, on 15M (21.074), 17M and 12M - with this setup,  I get NO decodes,
> and on the P3, I see the passband in the CENTER of the display, and the
> signals are all to the right of the passband.  I manually switch the radio
> to USB (from data), then the P3 passband shifts to the right and I start
> getting decodes; but can't transmit, since the audio source for the K3
> switches from LINE to MIC.
>
>  
>
> Help????
>
>  
>
> 73 de N7QNM
>
> Clay
>
>  

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