ExpressLRS has no LQ threshold. really? (How to set up RSSI and LQ warning) 

Hey Wez, pls make new long range videos. Love your channel

@@Nici619 new one on the way as we speak ;) Should be up in a few hours :)

@@WezleyVarty thanks man, you saved my Saturday night

30km?!

This will blow your mind ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-j2GMtBFDQho.html

This will blow your mind ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-j2GMtBFDQho.html

what vallues are you getting on your bench test, Im getting like -50dbm at 1m, 10mw but everyone on an fpv discord server where telling me that its terrible resutls, one person was even getting -2dbm

@@potater6163 Did you soled the issue?

thats impressive

Nah Frsky wouldnt have failsafed Like w.e. it is youre running😂. Jp.. I say that because you dont say what it is you failsafed on....🤪

With DJI, it's not possible to display RSSI dBm or LQ. You have to pick one, assign it to the aux channel, and use it only. You will still know that "RSSI" is actually "LQ" but you can't see both and you can't see them in correct units.

@@JoshuaBardwell Was hoping you had or knew of a solution. Thanks for the fast answer!

You could however use logical switches in combination with special functions on your radio to give siglow and sigcrit when 1RSS telemetry is < -98db. And crit at like -102 but that's pushing it.

@@JoshuaBardwell I am not clear on how to get any aux channel to show up in DJI OSD, nor how to have OpenTX react/alarm to ELRS LQ or RSSI dBm. My closest guess is that "assign it to the aux channel" is a Crossfire LUA ability, not an ELRS LUA ability.

@@ed_halley If you use the modified version of betaflight that replaces the craft name with the warning text string. Then you can set specific warnings when the RSSI and/or LQ or RSSIdbm go below a certain value. Then you setup OSD warnings to display and these will show up in your screen as a warning. Another way is to setup in your radio in the telemetry tab so that you can create audio warning for singal low and/or signal critical. You will need to play with settings until you are happy. Everyone recommends to place the ELRS to lowest possible power level to help find a floor for the area you fly in to make sure everything works correctly. Then you readjust power levels to normal and you are set.

No you don't need to do that with expresslrs. Betaflight will read lq and RSSI from the telemetry automatically.

LQ tends to stay high until SNR gets low then crater rapidly. So knowing you have strong RSSI is useful. Also why I say any time LQ starts to drop at all youshoukd pay attention.

Once you get to the RSSI dbm limit, LQ drops like a brick with ELRS so you'd failsafe if you didn't look at LQ for a few seconds. - High LQ & low RSSI = getting to the end of the range - Lower LQ & High RSSI = noisy RF environment - Low LQ & Low RSSI = you're about to failsafe. Also: LQ of 10 with 500Hz packet rate is like LQ of 100 with 50Hz crossfire 🤣 I know it's not that simple but still: 50 packets a second. There's no comparing the two when it comes to LQ.

Do it quick before your radio melts.

@@thejeffhendrix You're not meant to turn the microwave on 🤣

now you tell me

It's really better to use RSSI dBm and the X:YY form of lq. They give more useful information about the link. If you really want to make it like old style crossfire, aux11 and aux11 are lq and RSSI. Set one of them as the RSSI aux channel and then use RSSI in your OSD instead of RSSI dBm and lq.

Yes. Nothing has changed in that respect.

Yeah, for RC signal I'd prefer to have my radio warn me rather than OSD flashing 'cause then I can have a voice warning (and it works even if I'm flying LOS).

@@Vousie if you're failsafing los you aren't flying los

@@samsam18200 Well, I had a (dodgy) radio receiver that sometimes failsafed at 200m... Very easy to see a large-ish quad at 200m. 🙄 Antenna placement/fragile antennas can also be an issue. All I'm saying is it's 100% possible to get a failsafe at *any* distance. Especially if using "normal" links like FrSky.

I don't think you can use ELRS with the DJI controller of that's what you're asking.

@@JoshuaBardwell sorry should of explained more, I mean how can you get lq in the dji goggles osd

It will not switch rfmode. Elrs doesn't do that.

Yeah, you should! It's way better then R9 in my humble opinion

Just did that. The process is tedious but it definitely saved me hundreds of bucks from buying a radio that supports ACCESS...

Yes, you should!!! Or, even better, buy new! OK, you'll need about 70 bucks but... RX is way smaller than R9! Updating is way easier (and I don't know for how long would Frsky hardware be able to update). "Binding" is a non-existing word in the ELRS world! (you set up RX and TX and as soon as you power up, they will bind!!!

Imo as owner of ancient turnigy 9xr non pro the only thing keeping me with R9 accst is this radio, but still R9 accst 25mw lbt have never failed me, my fpv link is still limitation. The main thing being offered by elrs seems to be ability to turn down smoothing of rc signal, which should quite easily remove few ms of latency.

You can't solder back an antenna wire like that. It's coaxial wire. Once it breaks, it's very difficult to repair correctly. You should replace the antenna. You can buy spare antennas for any 2.4 GHz ELRS receiver and most likely they will all be compatible. I suggest the Happymodel antennas or you can also use IRC Ghost antennas.

@@JoshuaBardwell ah dang it just looked like a solid wire to me it broke on the T section but if I missed the internal element in my inspection no wonder it’s still acting up! Thanks for the reply! I wish I put this Rx/antenna to use when I bought it literally never been flown would’ve returned lol >.< I’m used to Frsky style antennas so these T shaped antennas are new to me, I might look at the Ghost antennas I feel like id trust their build quality more than Jumper / betafpv at this point.

What packet rate mode you're in.

250mhz packet rate

7 is 250 so 8 must be 500 and 9 is 1000.

DJI OSD can only display RSSI not lq. You can substitute lq as rssi though.

Are you using Betaflight 4.2 or an earlier release?

@@JoshuaBardwell 4.1.sth

If you try to make it -98 tell BF 98 and it will make it negative.

I believe not in betaflight. But if LQ is given as a telemetry sensor then you can set that up on the radio to activate an aux for gps rescue. But any reason you’d want that?

ELRS carries lq and rssi as aux 11 and 12. You could tie GPS rescue to that aux channel.

@@gautamkrishna7421 Agreed - when I have a quad with RTH functionality, I'd rather just let it return if it actually failsafes. It's only with non-RTH-capable quads that you'd wanna deal with it earlier.

@Joshua Bardwell shweet! And from the man himself! I was crawling the web for thst exact! Answer, now I can go to sleep. Thanks JB! Running two of your qav frames FTW!

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That's pretty common with an ep1 and t style or even dipole antenna and in line with what I see with my ep1's.. JB is talking about the tiny smd antenna on an ep2. I generally get high -40's to low -50's on my ep2's at 1 meter 10mw. I don't even get a little nervous flying until LQ hits and hangs around 50% with dbm in the high-90's. Months of flying ELRS daily with exactly zero fail safes flying ep1 and ep2 recivers, module set at 500hz 100mw..

@@shultz42 T-Antenna on the TX side - NO EP1

@@DM4DS Ah, I thought you meant the receiver side.

For what it's worth, the -45 number given to me by Alessandro was for the ceramic antenna, but I was unable to reproduce it.

@@JoshuaBardwell The ELRS wiki says -30 to -40 for 2.4ghz, and -20 for 900. For the EP2s apparently you should be in the -40 to -60 range because of the "ceramic" antenna according to the ELRS devs I talked to. FWIW I get -50 +/- 3 db on my DIY 2.4 TX and an EP2.

That's what the ELRS devs recommend. Bear in mind RSSI fluctuates a lot especially if you don't have a diversity receiver. But the truth is that's just what they recommend.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sYafWt-c7dQ.html

@@JoshuaBardwell thanks mate i'm going to try it with expreslrs

At 1 meter with 100 mW yes that seems low to me.

That depends on your Hz and your output power. If you're running 500 Hz at like 250 mW, that's about right.

@@JoshuaBardwell i use 200 hz and 10 mw, with 100 its a little better but not that much, i have micro failsafe and after 650 meters, failsafe, that can't be normal, i run it on 915mhz?

@@JoshuaBardwell my snr is when my tx and rx is 1 meter away from each other 4 dbm, what could be the problem? that is probably the reason for my bad lq

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-s4EcxopG-Qo.html&ab_channel=JoshuaBardwell

You aren't getting telemetry from the FC to the receiver. Make sure telemetry feature is enabled in Configuration tab.

@@JoshuaBardwell thanks as always for your time… the problem is the Betafpv AIO F4 built in ELRS you cant flash to newer version yet 🤦🏻‍♂️

It would be nice if someone finds a way to protect the antenna and shares it... Right?

@@MCsCreations have a 3D printer? Search thingiverse with EP2, you'll find some TPU mounts and covers. Me, I just use clear heat shrink over the antenna and secure the receiver inside the frame. I haven't damaged an antenna yet, maybe I need to crash harder:)

Mine too. Tried to solder it back on and it only held up for a week and I got -90 db and higher while flying again. I had some frsky antennas and I cut off the connector of one, peeled back the ground soldered it onto the ground pad, peeled back the silicone and soldered on the antenna wire. Works great

ha ha

😅every time I fly it’s a Rotor Risko 😁

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Well yeah, you're flying at 5 times the packet rate of crossfire. LQ will be a bit more sensitive as it's the percentage of received packets as opposed to sent packets. If you have 2% loss on crossfire (98 LQ), your quad is receiving 49 packets a second. On ELRS 250Hz, receiving 49 packets is only 20 LQ. I wonder if you get the same fluctuation on 50Hz.

@@hofa you’re absolutely right. I hadn’t thought about this. I will try both ends of the spectrum, 50Hz and 500Hz and report back :)

@@STEDDiEFPVand?