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zBitX offset waterfall passband

 

I picked up a zBitX at FDIM, but am just now getting it going as I had a backlog of storm-related stuff to deal with on the farm when I got home. So far it seems amazing. I have scanned the manual and have been reading postings, but this issue doesn't seem to be covered anywhere. In the photo below I am listening to 7.255 LSB and the signals are loud and strong and you can see the waterfall trace, but the red line for the carrier point is about 1500hz above the frequency, so the signal trace is offset in the indicated pass band. Is there a way to adjust the waterfall? Also, is there a way to increase the contrast for signals on the waterfall? Those there are nowhere near the intensity shown on other SDR devices, or maybe it is because the background shows a higher noise level?
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=Vic=
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More anomalies. I connected the zBitX to an HDMI monitor/keyboard/mouse and now when looking on that screen the LSB signal on 7250 is correctly shown in the passband, while the zBitX screen is still offset, but the frequencies at the top of the HDMI display show the signal as being 7275, not the 7250 shown in the frequency display. What am I doing wrong here?
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=Vic=
 

There are a number of issues that need to be?resolved... Open a issue with anything you find at:?


On Thu, May 22, 2025 at 2:35?PM Vic WA4THR via <vhklein=[email protected]> wrote:
More anomalies. I connected the zBitX to an HDMI monitor/keyboard/mouse and now when looking on that screen the LSB signal on 7250 is correctly shown in the passband, while the zBitX screen is still offset, but the frequencies at the top of the HDMI display show the signal as being 7275, not the 7250 shown in the frequency display. What am I doing wrong here?
?
=Vic=
 

On Thu, May 22, 2025 at 08:35 PM, Vic WA4THR wrote:
More anomalies. I connected the zBitX to an HDMI monitor/keyboard/mouse and now when looking on that screen the LSB signal on 7250 is correctly shown in the passband, while the zBitX screen is still offset, but the frequencies at the top of the HDMI display show the signal as being 7275, not the 7250 shown in the frequency display. What am I doing wrong here?
On the zbitx, the RIT switch is in the ON position, is this intentional?
--
Gyula HA3HZ
 

I think the RIT got turned on in the second photo (off in the 1st) as I was playing around trying to fix that display offset error. It made no difference.
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However, I did get the odd frequency fixed in the second photo. Connecting via sbitx.local and adjusting tuning seemed to get everything aligned on the display for the correct frequency on the HDMI screen matching the frequency tuned to, but the offset which only appears on the zBitX screen remains. I also got VNC connected, but I am having problems with that mode other than viewing.
 

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