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https://www.reichelt.de/emi-suppression ... 07635.html
https://fpv-community.de/threads/tod-de ... 12s.79885/

Good luck. Viel Erfolg

So, am I right that to have a GPS rate at 5 or 10 , I have to use U-Center to modify BN-220 and adapt rate in openXsensor sketch? No, it's easier. You can simply change this line in oXs_config_advanced.h (see 9 - GPS): #define GPS_REFRESH_RATE 5 // rate at which GPS sent new data; select between 1,...

In sketches from this thread MS5611 is enabled by default. In this case oXs will not find a GPS until the baro was found during startup. If you do not connect a MS5611 then this line in oXs_config_basic.h: #define FIRST_BARO_SENSOR_USE MS5611 // select between NO_BARO , MS5611, GY86 , BMP085 , BMP18...

255 is perfect, since it is 2.55 * 100
The ratio for factor 1 is:

Precision 0 --> 255 (Temp)
Precision 1 --> 25.5 (e.g. Current)
Precision 2 --> 2.55 (e.g. Acc)

Took me some years to find out

I want to add my last personal episode with FrSky. I'm testing my gear intensively, because I can not afford any mistakes where I fly. I've flashed v2 to have a first impression inhouse. I know what RSSI and frame loss I can expect. My first thought was, wow what a progress in link quality. At the s...

As the oldest looking in this forum I want to say, that a lot of people are very grateful, for the work some smart people are doing for the community. Without people like the OpenTX devs, Mike, mstrens, Pascal I would for sure not fly RC anymore. It is a lot of fun with you all! Keep going please.

midelic wrote: ↑Tue Jan 28, 2020 8:49 amYes I continued,and I will continue .ABout V2 if will be cracked probably will be added as 4-th protocol on my rx.

I will check merciless, if you also manipulate lost frames with your V2

RF-Interference as well as Fresnel-, Doubler-Effects can cause sudden frequency shifting, especially when tx and rx center frequencies are not well matched and the AFC (automatic frequncy correction/control) is running at the edge of its contoll range. A piper pilot ;) opened my eyes, to read and u...

It will only show up when you have started a sensor search in the telemetry tab with connected and working sensor once. You shoud see Alt and Vspd from the vario then. For vario tones you want Vspd as source.

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Another thing - I provided a link, where user, named udo tested and saw problem. And he says "The problem was detectable with any kind of TX/Rx combo"... Correct. But only on the table with high interference level and with certain RX models. I may be wrong, but when FrSky started with D16...

I believe the problem is with the new line of TX and RX probably used different hardware and different software. I would like to hear if somebody recorded the same problem with an TX with XJT module and an old X4R or X8R rx. I'm watching this issue closely from the beginning and have never seen thi...

I'm also sure the update is a trojan horse. But there are definitely lockouts and unwanted servo movements. You wrote, that TX out of tolerance can not cause this. If a CRC error can also not cause this, what else? Is it simply a firmware bug, like it was with X12 when it came out?

What is interesting for me is that not all RX or TX are affected make me believe that they used different firmware in the new product line of Tx/RX with D16/LBT protocol. I think, there is not enough data about affected RX or TX models to be sure, but it would be a good explanation for my problem, ...

My explanation of the lock out and servo deflection: https://www.rcgroups.com/forums/showpost.php?p=43675945&postcount=204 . Very diplomatic. At least the lockout is now kind of official. FrSky and Engel are still talking about servo movements only Some may wonder, how the RX knows, where to ho...

Mainly I'm interested, why my TX are not affected.I've made hundreds of testflights with openXsensor and I'm sure, I never had a single glitch with X9D/E.

OK thanks, the search continues.

If FrSky does not automatically tune RX, is this a possible cause for the watched lockouts, when TX frequency is out of tolerance? What do you think?

FWIW I've asked Pascal Langer (MPM) about the frequency tuning with FrSky. I think it is OK to publish his answer: "Re: FrSky frequency calibration The original frsky RXs don't do it. They might be tuned at manufacturing time once for all. The clone frsky RXs are doing exactly what you are sayi...

CC2500 X-tal frequency drift with temperature may happen(and happened with poor quality X-tals) and if happened it will worsen and the rx will not recover.The lockout is limited in time and rx recovered .I don't think the lockout is caused by a frequency drift. Eventually it was wrong wording, it i...

Here is another log from Juergen with a documented lockout with ACCST pre2.0. Eventually combined with an unintended roll command, if you look at the pilot's reaction with aileron (blue), but it may also be a coincidence. It took 8 months to find a pilot with an affected TX and the ability to build...

Imo they should have the chance, to get a firmware with the bugfixes only and without additional goodies. Installation of the goodies should be optional ;) Carbo, ask Graupner, Futaba. JR, and others if they give costumers an option to install goodies or not :) One smiley should be enough, to show ...

Well, agreed. But in what world users can have a choice if to have or not IP protection mechanisms? If a company is deciding to introduce one, for sure will not put it for users to vote. No company ever did that. I appreciate your balanced and open answer. One last remark: the IP protection comes i...

I'm not sure if it matters that much what I think. But do you think that majority of the users even know what is it about or care? Not too many people are sniffing RF transmissions on daily basics ;). User of genuine FrSky products will receive the upgrade, hopefully solving the problem and not int...

Anyways, I stated my points. I can relax now :). What do you think about the fact, that FrSky users who suffer from lockouts and unwanted servo movements are forced to install new firmwares with encryption between CPU and RF chip (not bug related) and manipulated LostFrame bit in SBus (also not bug...

MikeB wrote: ↑Thu Jan 23, 2020 3:38 pm Do we know if this only applies to LBT mode or does it apply to FCC as well?

It seems the answer is FCC as well. First log with V1 FCC (170317) And with V2.0.1FCC

This whole D16 thing is not convenient for FrSky (in fact I cannot imagine how some may say that FrSky made it all up just to take opportunity to brake backward compatibility - it is like shoot the leg, to cover other pain), but I believe that FrSky customers deserve to be well informed. Better tha...

Note that Hobby Porter is no longer affiliated with Jumper and have removed all Jumper stuff from sale several months ago. To be honest I couldn't care less. But must be great to their users having such a stable company standing behind their products. Presumably you have a huge financial interest i...

FWIW I want to share some LBT bind frequency measurements. First my trusted 2013 X9D, that never had any issue: LBT_bind.jpg Tuned MPM: Binding-MPM-lite-LBT(EU).png Xlite pro with lockout issues causing at least 2 heli crashes: Binding-Xlite Pro-LBT.png Cursor always placed in a way, that the "...