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TOPIC: ExpertRC with RPI 3 NANO has offset waterfall

ExpertRC with RPI 3 NANO has offset waterfall 25 Jul 2017 14:50 #1

  • KTaylor
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Hi, I have used the RPI 3 image for NANO and it loads up and works OK.
When I connect to it via a web browser on port 80 it works without fault.
However when I use the latest ExpertRC software (1.1.3 RC12) and connect to RPI3 it initially
starts perfectly with the Filter line centered on the frequency and the waterfall in sync on the carrier.
However as soon as I move the frequency by clicking on another signal the Frequency can
be set correctly but the waterfall is shifted by 1.9-2.0 Khz from the center carrier of any AM signal
If I close ExpertRC at this point and relaunch it, it start again with the new frequency and waterfall
synchronized in the center of the display but any change in band or frequency again results in the waterfall offset
from the selected frequency.
This persists until I close and reopen the software.
It's as if it has the SSB offset applied or a RIT applied but I see no way of changing this.
Anyone able to validate this issue and suggest a solution ?
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ExpertRC with RPI 3 NANO has offset waterfall 25 Jul 2017 15:22 #2

  • KTaylor
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UPDATE: I have discovered if you leave the filter line at the center of the waterfall and scroll the frequency
digits with the mouse it always has the correct waterfall position (when in center of waterfall display).
As soon as you click a signal left or right of the waterfall center position the offset occurs between the received
frequency and the waterfall center of that frequency.
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ExpertRC with RPI 3 NANO has offset waterfall 26 Jul 2017 07:11 #3

  • Rome
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Hi,
Thank you for your input. We aware of this issue, it pertains to ColibriNANO receiver if you use it via the ExpertRC and tune frequency with the mouse click.
It will be solved in the new remote software until the end of September.
Роман, Roman
Expert Electronics
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