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Topic: Rx IQ auto correction problem (Read 1963 times)
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F4HTX
schon länger dabei
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Posts: 66
Scotty, energize...
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Rx IQ auto correction problem
« on: 01. July 2018, 09:34:54 »
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Dear Friends,
I noticed for some times that I was able to listen to strong ghost images of any signal, on any bands.
I didn't pay much attention, and think about some transmod problem, and as I was overhelmed by pro for the past months, I didn't investigate further. But as it puzzles me, I took time to pinpoint the problem.
Finally, I got the same behaviour on two mchf and one OVI-40/mchfRF : the Rx IQ auto correction menu just doesn't work anymore.
After a dichotomic downgrade the problem seems to emerge in the 2.9.10. The Rx IQ auto correction works in 2.9.9, not anymore in the following releases.
Did I missed something or am I the only one to experience this ?
Best regards,
François
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F4HTX
schon länger dabei
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Posts: 66
Scotty, energize...
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Re:Rx IQ auto correction problem
« Reply #2 on: 01. July 2018, 16:49:32 »
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Hello Andreas,
Thanks for the tips and infos.
Unfortunately, I am unable to propose a reproductible sequence which lead to this Rx ghost. But strangely it appears on the two mchf working overhere, and also on the OVI-40-UI.
On one of the mchf (cpu #413h) I did multiple time the following and wasn’t able to re-activate the auto Rx IQ (manual didn’t work either)
- Loading Defaults (F1 F3 F5)
- erasing eeprom.
(On the OVI, load defaults an erase eeprom fixed the problem)
Wondering (still) about version, I re-downgraded to 2.9.10 and 2.9.9 but got different behaviour than my first email…
Upgrading again to 2.9.42, load defaults, erase eeprom and this time Rx IQ correction is working. Great. I will be paying attention to that in the next weeks to see if it’s stable.
In the process, I lost my config, so I’ll have to redo the commissioning, not a problem but I am sorry if the config file might have been useful to you.
I still have the second mchf to fix, I’ll be more careful with the config file.
Thanks again for helping, Best Regards,
François
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If this is present you fo not have any mirror suppression. Just goto "Touchscreen via menu" and activate "restart codec".
