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TOPIC: Receive Frequency appears off by +30-50hz on any band (ssb phone)

Receive Frequency appears off by +30-50hz on any band (ssb phone) 30 Dec 2021 02:33 #1

Whether I use firmware V8 or v9, or esdr2 or 3 receive Frequency sounds off. I hadn't noticed it before and it may have been always there. Just seeing if anyone else has seen a similar issue. Frequency correction has no impact when changed and written.

Thx
Last Edit: 30 Dec 2021 02:34 by Va3cxp.
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Receive Frequency appears off by +30-50hz on any band (ssb phone) 01 Jan 2022 14:51 #2

  • kc2rgw
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I've only calibrated mine twice. When I first got it, using EESDR 2 and recently with the firmware update, it reset my calibration so I did it again.

Are you sure you are changing a significant enough digit in the calibration value? Both times I had to fish around a bit to figure out which value was closer to 1Hz or .5Hz and work from there. It has very fine adjustment range, which is great.

Once calibrated it is stable as I work a fair amount of digital mode, so I would notice it.
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Receive Frequency appears off by +30-50hz on any band (ssb phone) 02 Jan 2022 20:20 #3

Yes, the max change you can make is +/- 0.1. Any changes written doesn't appear to make a difference. Wonder if that settings does anything for non-digital modes.
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Receive Frequency appears off by +30-50hz on any band (ssb phone) 05 Jan 2022 05:42 #4

I figured out my error. With esdr3, after writing you must press power off in esdr. Then turn on to see the changes applied. All good!
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Receive Frequency appears off by +30-50hz on any band (ssb phone) 05 Jan 2022 07:46 #5

For me, the calibration was gone with the version EESDR3 Alpha 10.0 and I could not write the recalibrated values back to the TRX board with this version. I then installed EESDR2 again, calibrated it there and saved it to the TRX. Then I installed EESDR3 again and everything was fine.

Apparently, writing back to the device is now possible with version Alpha 0.11.
I use an MB1

73`Olaf
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