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FrSkyRC / RF_Feedback_Group

Regarding to the RF issues.
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Latest TDISRM bugs collected #13

Open rwijnhov opened 6 months ago

rwijnhov commented 6 months ago

Hi i saw you ask for more information on github, i have put them in one thread. There are 2 bugs with the latest TDISRM radio or rx firmware: 1- 2.4ghz telemetry still shows when rx is switched off--> After you turn the transmitter completely off and back on it'll work. But when you make any receiver adjustment through the transmitter and then turn the receiver off, you'll get that problem until you shut down the transmitter. So somehow the 2.4 telemetry connection hangs

2- I am on flex firmware. No matter if i set telemetry to 25mw it is always locked to 25mw and RSSI and VFR 900 is of the telemetry channel instead of the full power channel. I am on 868 flex firmware and tested with servo test mode on rx: -100mw, 25mw telemetry setting on. All sensors lost and vfr and rssi low an gone at x meter, servo kept moving for 2 the range of x -100mw, 25mw telemetry setting off. All sensors lost and vfr and rssi low an gone at x meter, servo kept moving for 2 the range of x -500mw, 25mw telemetry setting off. All sensors lost and vfr and rssi low an gone at x meter, servo kept moving for 4* the range of x

I rebound the rx everytime after changing power output. So to make it clear on all settings telemetry, vfr and rssi numbers went down at the same spot. So 2 issues: 2.1- Telemetry is always locked on 25mw 2.2- RSSi and VFR only say something about the 900 telemetry channel not about the rx/tx channel so it is not usefull to check your 900 reception

SmartTommy commented 6 months ago

we test with the X18(ethos 1.5.6,TD_ISRM 2.2.6) and TDR10 (1.0.12),

  1. We did not find the problem you described，could you show us video?
  2. could you tell us what is your Rx?
rwijnhov commented 6 months ago

Hi you want a video of what? And it is hard to make a video of the the fact that rssi and vfr is 0 while the connection is still there. Since i am moving away and someone else has to stay with rx to tell me if there is still connection while the radio says it is down. I testet this with tdr18 and tdr10.

cheers, Ruben

SmartTommy commented 6 months ago

Hi you want a video of what? And it is hard to make a video of the the fact that rssi and vfr is 0 while the connection is still there. Since i am moving away and someone else has to stay with rx to tell me if there is still connection while the radio says it is down. I testet this with tdr18 and tdr10.

cheers, Ruben

1- 2.4ghz telemetry still shows when rx is switched off--> After you turn the transmitter completely off and back on it'll work. But when you make any receiver adjustment through the transmitter and then turn the receiver off, you'll get that problem until you shut down the transmitter. So somehow the 2.4 telemetry connection hangs

------ could you show us this a video?

rwijnhov commented 6 months ago

Hi I will make one this weekend.

rwijnhov commented 5 months ago

I haven't been able to trigger it so havent been able to make a video of it. But it is not only TD on D8 I experienced the same issue. Als someone else just reported the same issue https://github.com/FrSkyRC/RF_Feedback_Group/issues/9

Jedsters commented 5 months ago

As @rwijnhov says, I've had the same problem twice with a TD SR10 latest firmware and X20S 1.5.6. I struggle to recreate too as it's not clear what causes it. @rwijnhov you think that it was making a rx adjustment which caused it, that's interesting, it was while I was setting up the rx that I had the problems too so that's what I'd been thinking. I'm not sure if it is one of the scripts or something I did in one of the scripts, but exactly the same, the 2.4G signal didn't appear to drop when the rx was turned off. I've just tried reversing a gyro channel and then performing a self check, however neither of those appeared to cause the problem.

I've attached photos showing the problem in FrSkyRC/RF_Feedback_Group#9 which were taken after the rx had been turned off for over a minute. If I can recreate on demand I'll make a video too, although I'm not sure what more information a video will provide over the photos I've supplied already showing in telemetry what is going on.

There is a problem here and I don't understand how it can be RF issue as tagged if the rx isn't even turned on. Ethos must detect that the 900M signal has been lost, but either doesn't appear to keep checking the 2.4G signal or as suggested above, maybe something freezes. But not all the time.

Obviously not detecting signal loss is rather concerning.

Thanks

Jedsters commented 5 months ago

Someone else has reported the same for point 1 above in FrSkyRC/RF_Feedback_Group#9. Again, suggesting it is something to do with setting up or changing the rx settings rather than in general use. Definitely a problem here, but tricky to narrow down.

rwijnhov commented 5 months ago

I had it last week again after flying for 10 minutes, didn't fiddle with any settings.

Jedsters commented 5 months ago

That's not good. You don't want to get into the habit of having to force the tx off as you know one day you'll force the tx off when the rx is still on. We need to ensure any power models have failsafe set correctly, just in case. But this does need to be fixed.

rwijnhov commented 2 months ago

Not stale still not solved