DAX channel changing by itself

  • 1
  • Problem
  • Updated 2 years ago
  • Not a Problem
  • (Edited)
I just upgraded my 6700 to v2. The upgrade went smoothly but now I've noticed a problem.

I have 4 slices open all DIGU and 4 occurrences of WSJT-X for FT8. Each slice is a different band and the DAX is set to 1 for A 2 for B 3 for C and 4 for D. Each WSJT-X is set accordingly with the first DAX 1 the second DAX 2 , etc.

Today I noticed a problem on the second WSJT-X which was initially set to 17 meters but I had changed it to 15 meters. I saw a lot of activity on 15 and sent replies but never got an answer. This continued for a while until I noticed that while the WSJT-X was set to 15 meters the activity I was seeing was really taking place on 20 meters because the instances of WSJT-X was specifying a specific DAX channel. I checked SDR and sure enough the DAX channel for the slice had changed by itself to 3 which was the DAX setting for slice C and 20 meters.

I experimented with this and saw that sometimes when I changed the band on a slice via SSDR the DAX would stay the same and sometimes it would change. I would think that the DAX channel would be tied to the slice and not the band

Has anyone else experienced this?

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Pat N6PAT

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Posted 2 years ago

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Tim - W4TME, Customer Experience Manager

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It is band persistence.  This behavior is by design.  

From the SmartSDR Software User's Guide...

Persistence, always enabled on your Signature Series radio, remembers settings from band to band without your direct action so that when you return to a band your settings are restored. 

DAX is included in Slice persistence.
(Edited)
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Pat N6PAT

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Why does this only happen when the band is changed via SSDR? If I change the band via WSJT-X the DAX always remains the same which I would expect it to do and want it to do.
(Edited)
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Tim - W4TME, Customer Experience Manager

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Because CAT does not do a band change using the BAND function, it initiates the change by a direct frequency entry of the slice.
(Edited)