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DB4PLE
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Re:Receiving strong sigs 12.KHZ
« Reply #15 on: 21. July 2018, 20:53:58 »

Hi Chuck,

essentially, what you are saying/seeing is: two UI boards in combination with two different RF boards show the same problem.
1. The problem could be in the schematics (unlikely), but in this case others should be able reproduce this.
2. It could be in the software in general, (unlikely), but in this case others should be able reproduce this.
3. It could be in the software in combination with some settings, in this case others should be able reproduce this if they have the same settings.

So for now number 3 is more likely than the other scenarios (apart from some broken / wrong components on the boards) and more easily reproducable, please download and send the settings here or in a Github issue, please use the backup tool, see here https://github.com/df8oe/UHSDR/wiki/Backup-and-Restore#backup--restore-on-external-computer-since-2919.





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WD8BXS
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Re:Receiving strong sigs 12.KHZ
« Reply #16 on: 21. July 2018, 23:23:16 »

I just found out that this problem started with 2.9.16 firmware.

I loaded 2.9.15 and all is well.

THERE IS A FIRMWARE  ISSUE!

73,
Chuck
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DF8OE
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Re:Receiving strong sigs 12.KHZ
« Reply #17 on: 22. July 2018, 05:43:46 »

Quote:
THERE IS A FIRMWARE  ISSUE!

If this would be right it would be mandatory that every mcHF would have this problem - but it is not so!

Maybe you do have a scrambled configuration.

It would be great if you do make a backup of this configuration via USB and PC before you proceed. This would help us to identify such scrambled settings during power on cycle.

Please try newest firmware and run mcHF with a clean (== default) configuration. Feedback is welcome.

vy 73
Andreas
« Last Edit: 22. July 2018, 12:53:51 by DF8OE » Logged

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Re:Receiving strong sigs 12.KHZ
« Reply #18 on: 22. July 2018, 19:06:54 »

OK, I reset the EEprom, I set to defaults, I loaded 2.9.43, and all seems to be working OK now!!!

Both radios are OK right now.
I will do calibration on both and see what happens.

Thanks, so Far!

73,
Chuck
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #19 on: 22. July 2018, 21:52:53 »

All seems OK now that I have cleared the EEprom and reset to defaults, loaded new firmware 2.9.43,  and calibrated.
Very confusing, but there must have been something that corrupted the info. Maybe I should do the EEprom reset before doing anything the next time!!

Thanks for putting up with me.

Very 73,
Chuck WD8BXS
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DF8OE
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #20 on: 23. July 2018, 04:43:09 »

Please can you attach the old (scrambled) setting zipped to your next reply? We have programmed possibility to store configurations exactly because we need informations to hunt such "strange things". Without such a scrambeld configuration there is no chance to step on.

There is a routine in firmware which tests each seting at starting up. But it seems there are some possibilities for scrambled values to pass this routine. I would not call this "a bug" - but you see there is something that can be improved. But only with your help and contribution...

If we do not get this contribution you possibly must again and again reset your configuration and setup every setting new

vy 73
Andreas
« Last Edit: 23. July 2018, 04:50:14 by DF8OE » Logged

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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #21 on: 24. July 2018, 05:46:04 »

Hello Friends,

This is excactly what I encountered recently. I first thought it was a xslate problem, but it was exactly as Chuck described (see the Rx IQ auto correction problem topic  in UHSDR Firmware). Downgrading the firmware also did the trick, but  not the same versions.

The problem solved after a full reset and I unfortunately lost my settings in the process, but I have two more TRX with the problem (one mchf, one OVI/mchf RF).

Before performing reset, I will do some measurements with RF generator and this time salvage the settings file.

As soon as the QRM pro slow down a little...

Best Regards,

François
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #22 on: 24. July 2018, 07:34:12 »

It would be great if we could save a setting where the issue exists. I never have had seen it here.

vy 73
Andreas
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #23 on: 28. July 2018, 15:27:19 »

Hi Andreas,

This is the config file from a v0.6 mchf  (cpu 413h, BL4.0.0, FW 2.9.46) which exhibits the problem discussed here.

I will post another config file from an OVI40 soon. Sorry, I forgot, I had reseted this unit last week...

Hope this will help to pinpoint this unexpected behaviour.

73's

François
 uhsdr_config.json.zip
« Last Edit: 28. July 2018, 15:39:18 by F4HTX »
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #24 on: 28. July 2018, 15:45:43 »

Many thanks for your contribution! The problem is not easy - we have already seen it is not one simple setting but a combination of settings (which all will be in their range - seen from only their range). Maybe we can work it out with configs which do show the issue.

vy 73
Andreas
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #25 on: 28. July 2018, 16:03:08 »

Hi Andreas,

Yes, this is a tricky problem. I will freeze this mchf until we fix it. So don't hesitate to ask me for any testing.

If necessary, I might sent it to Germany too, not complicated.

Best Regards,

François
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #26 on: 28. July 2018, 16:08:26 »

Hi François,

with the config json file we are able to reproduce the problem on every mcHF. So we do not need hardware - but luck and time to investigate  . Thanks for your offer - not neccessary in this case.

vy 73
Andreas
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #27 on: 02. August 2018, 15:51:42 »

Hi Andreas,

As promised, please find attached a second Config File from another mchf with the same signal ghosts. I hope this will help to pinpoint the troublemaker.

73's

François
 uhsdr_config_2.json.zip
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #28 on: 02. August 2018, 16:30:46 »

Hi François,

many thanks. I have stored it and will have a look by time. Actually I am working hard on RF schematics and PCBs so I will not work on this next day / weeks, but it is important to have as many as possible configs with the bad settings...

vy 73
Andreas
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Re:[solved] Receiving strong sigs 12.KHZ
« Reply #29 on: 28. August 2018, 21:21:24 »

Just did a radio, that had the 12khz problem, reset and problem went away.
Went through the calibrate and now the issue is back.

Here is the config file for you to look at.
 wd8bxs12khz.zip
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