Make the pan/waterfall frequency follow the slice frequency

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  • Updated 6 months ago
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Hi there,

how can I make the pan/waterfall/panafall frequency change when I change the slice frequency to a value outside the displayed range?

If I use the SmartCAT logging window to manually enter a frequency (FA....) outside the display range of the panafall the panafall moves to this point. But using Wireshark I can't figure out what is causing this..

The reason for this question is that using my xCAT with WSJT-X on the Mac when changing the band via WSJT-X only the slice moves but the panafall stays where it was. I might be dreaming but I think at some point/with some SmartSDR release this behaviour started (before the panafall would change as well)..

I hope someone could give me a hint for this..

Thanks and 73
Mario, DL3LSM
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Mario - DL3LSM

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Posted 6 months ago

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Photo of Eric - KE5DTO

Eric - KE5DTO, Official Rep

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Official Response
When you send a 'slice tune' command, you can send an optional 'autopan=0|1' on the end.  If autopan is not sent, it is assumed to be on (1).  When autopan is on, if the Slice is tuned outside the bandwidth of the Panadapter, the Panadapter center frequency will be set to the Slice frequency.

SmartSDR CAT uses this to ensure that if you send a CAT command that tunes a Slice off screen, that the Panadapter will follow.  SmartSDR for Windows uses a similar algorithm implemented in the client to do edge tuning (the Panadapter will move once the Slice reaches the 10% edge of the bandwidth shown).