literally just got my crossfire rssi wokring, im like whys it so low? This video comes on autoplay and i hear your voice in the other room talking about my exact issue. What a hero
I'm soooo glad you made a video about this. I literally just got crossfire yesterday and I thought I had done something wrong somehow! This is a huge relief!
I can't tell you what calculation Crossfire is doing when it outputs RSSI on an aux channel - you'll have to ask TBS about this. When Betaflight gets the RSSI directly from the CRSF link statistics frame it's supplied as dBm with a documented range of -130 to 0. Betaflight scales this range from 0 to 100% and that's the RSSI value presented.
Those of us using DJI can't just ignore the weird RSSI behavior and use LQ. Only the selected RSSI channel, or default RSSI (when channel selection is disabled) goes into the MSP telemetry stream that DJI uses to display on the OSD I went the disabled RSSI channel route, and set the RSSI scaling factor in the cli to 125% which makes the new lower values seem a little more normal. FWIW, LQ is great at telling you if you're battling external RFI but at the true limit of range it may drop rather abruptly. I prefer the more gradual fall-off of Rf RSSI and find it more useful for detecting issues with Tx or Rx antennas or connectors (will see low RSSI from the moment of launch, rather than a sudden drop in LQ a few hundred feet out).
This is interesting. I’ve got LQ working on DJI by selecting LQ on the RX and RSSI on betaflight OSD, but like you say it can be at 100 and them drop very suddenly, I do prefer a more gradual falloff so I can more easily gauge if I should consider turning around or gaining altitude. How did you apply the change you mention?
daemn42 As a fellow DJI user, I have been struggling to get lq displayed in my OSD. How exactly did you set it up in order to get that data? Thank you in advance.
Sorry Charlie As a fellow DJI user, I have been struggling to get lq displayed in my OSD. How exactly did you set it up in order to get that data? Thank you in advance.
im also glad you made this video, i started to get really confused about all the different rssi values, but since i had my first fail-save with crossfire after flying not more then half a km (although it was quite close to a cellphone antenna tower) after flashing the new firmware on it, im not convinced its actually the same reception as before (cuz i flew there before and never had any issues and also i was glad GPS rescue worked and the quad came back to me). about half a year ago i came to the conclusion that lq is more important then all the other values but i still left them in the osd just out of curiosity and when i did my record-distance-flight (5.34km as of now) the values stayed fairly consistent and in a range that id expect but then other times they seem to jump around randomly even if im much closer and also pretty much direct los, so .... also im starting to get very annoyed about the tango 2 telling me "sensor lost" ALL THE TIME and Ive wrote tbs about it and the only response was an explanation of what that meant (it loses signal with one or more telemetry sensors due to the fact that telemetry on the nano rx is only sent at very low tx powers) and the only solution to the problem i found so far is changing the wav file to an empty one, but that's not really a solution... even though crossfire is (in my humble opinion) far superior then anything else on the market, that's somewhat decently priced, im starting to get a bit pissed of by all the annoyances it caused me the last couple of months.
hey @Omegron, about your "sensor lost" problem, I think it may be related to the "telemetry lost" problem wich is solved by changing a transistor in your taranis. Crossfire now send with their transmitter the piece you have to install on the mother board of the taranis. Here a tuto about it : www.wearefpv.fr/tuto-crossfire-taranis-qx7-20180726/ (sorry it's in french but that's for sure you can find many in english). But maybe you've already done that and your problem comes from something else... And about your failsafe near a cellphone antenna, it happened to me too ! At less than 200m away. I suppose we should avoid flying around those.
I have the same problem. Did you find out which sensor it should be or is it a general telemetry problem? After I attached all antennas vertically it got a little better, but now it says telemetry lost / telemetry recovered. This short-range error is known, read the description of the Diamond antenna.
Well, i sure dont hope i have to tinker with my fairly new tbs tango 2 and back when i used the taranis x9d+ with the crsf module i never had this issue (because i didnt use telemetry at all😅) And no i dont know wich sensor this causes but it would be lovely to be able to turn telemetry sensors on and off individually. Or at least disable the alarm without having to change .wav files
@@omegron6000 In openTX you can disable single sensors, but need to know which one. A friend asked me yesterday why his GPS is constantly losing satellites. Although he now has the latest and best spectrum receiver with strong telemetry transmission power 🤦♂️. We have very small problems compared. That's why I haven't tried "force Telemetry" yet, but maybe that will help. I guess that the sensor does not disappear but that it is simply no longer possible to transfer all values.
Thank you Joshua! I had to change channel on NANO from 8 to 12. I can't give up the other switches. I tried 12channels before and I don't remember seeing any latency issue. Again, thanks a lot! I can now see LQ via RSSI value. You're the man! 💪
Every time I have a random issue with my quad, I do a Google search and invariably, Joshua Bardwell has already answered it. Thank God for you, Joshua Bardwell.
People have been telling me R9 sucks because crossfire has 99% rssi forever and R9 drops off in a few hundred feet, and I'm an idiot for choosing R9. I understand the difference between LQ and RSSI, but the majority of CF fanbois I try to explain it to seem unable to admit that both system work the same, but CF shows link quality while r9 shows actual rssi. I will be posting many links to this video in the future. R9 still has it's issues, changing protocols being at the top of the list, but nice to see someone smarter than me finally explain the rssi/lq situation. Great video as always Josh, keep up the good work.
Unfortunately Frsky can't seem to fix their firmware bugs though and R9 still has all kinds of frame rate problems (drops, duplicates, random timing, etc.) which messes up RC smoothing and feedforward. So there's still that. And it's really just crappy firmware as the underlying chipset is the same as in Crossfire.
@@BruceLuckcuck I have not experienced these problems, I'm pretty sure that they are due to the slightly less user friendly nature of R9, but it works for me. Crossfire is also a fine choice and I begrudge no one for choosing it.
@@stevecorwonski385 Then you clearly haven't looked at a blackbox log to see what it's doing to your radio channels and feedforward and the resulting motor spikes they cause. Not a "Crossfire is better" comment, just a R9 has crappy firmware comment. And they've been unable (or unwilling) to improve it even with the Betaflight devs pushing and trying to help them.
Why? If your using CRSF you never need to worry about rssi again. Lol just busting your chops. It’s freaking awesome huh? I have it on my OSD but I don’t really look ever. I lose video well before I ever loose signal. I run 100&500 mw on a full size TX and go 2+ miles out on 600mw VTX
Thank heavens you addressed this. I was up til the sun rose!!! All night thinking it was a vtx table issue. Oddly enough when i load smart audio for tbs 2.0 it wont load. So i had to add channels manually..... Love ya brother hope the fams doing well
just was about to go to the field its 11.00 am in the morning , but this very important video drops. now lets learn this , will headover to the field next week .
Think it was pre 4.2 that Crossfire has a component of RSSI LQ on the UART output so you dont need the channel output RSSI. It wasnt even 4.2 that did this but like 4.0 or 4.1. Seems like the RSSI value was lower sooner like you noted in this video. I am now using all 3 values for RSSI values up together. But the 4.2 changes screwing with LQ makes me want to just stick to 4.1
Just got a crossfire micro tx starter kit. Got everything set up, mounted etc...watched all your videos and cant figure out my issue. When I first plug in my quad, i'll have 2/100 and 50ish rssi. After a few seconds of just sitting there, it goes to 1/100 with 30-35 rssi. Tried a different rx, higher power, different antenna, checked the region and freq...all appears to be correct. I have yet to fly with it this way because I feel I'll failsafe in less than 100 yards! I updated the tx, rx, and even struggled through an open tx update. Nothing has helped. I also took the module apart to make sure the ufl was still intact. Did I get a bad unit??? Little frustrated. Never had crossfire before and so far ive got a pretty bad first impression of it
Btw I think they have to fix something with alert message. Sometimes I got a blinky ( for less than 1 sec) alarm message in the center for link quality, also if it never went to 1:***.
Yes. Reupload any font and Lq will appear. However there is a catch. You have to reupload the font with the battery plugged in, otherwise it won't update properly. So: 1. Plug in the battery 2. Connect the USB and flash the font. 3. Call JB from the future for an update :)
My first 3 years of FPV I used TBS stacks with the TBS OSD and I found that I rarely look even at the LQ as the power output was my safety blanket .Most of the time I am on 10mw and I am set to 500 dynamic so if it shoots up to 500mw then I pay attention to the numbers but that is not a regular occurance as it rarely passes 25 . The thing that confuses me is I swapped a couple of my stacks and have them on Betaflight 4.2 and with only the stack changed I now hit 1:70 very frequently whereas in the same area with the TBS OSD it never went below 296% . Its like it reads the telemetry different but it unsettles me so I went back to the good old 99 on a couple of them and still have 2 quads on TBS stacks . I did just buy a Unify Evo and am loving that it gives me the 300% scale and my power output but maybe its just because its what I am used to . I wish Betaflight were able to implement output power in the OSD but I wont tell you what the reply I got was in the betaflight group . Nice video .Its good to have this for people to see
@@deltageek7177 But that is what the TBS Core does also and yet there are still massive differences in the numbers I see . Same with the Unify EVO it reads the same as the Core so there is definitely a difference between how TBS devices and Betaflight 4.2 reads that telemetry . This is why I would love Betaflight to implement the power output in the OSD as it tells a bigger story in a much more simple way . For me at least using dynamic power
I hate how the new way because in the corner of my eye I cannot tell when I go from 50hz to 150hz. Normally the number would vary down from 300 to 200, but now it always looks the same.
No it’s not like that... my LQ used to vary and go to numbers like 268 and so fourth. But now it will sit between either 2:90-100 or 1:60-100 the number doesn’t move around
Hmmm. Mine was 99% until recently. Now it's like 38% to 59%. Maybe a damaged antenna? I didn't make any betaflight or radio changes. It just started reading low and now I'm afraid to go more than 100 feet away because it gets down to the 30% area.
I believe that the link stats frame that feeds the telemetry values from the RX gets RSSI directly from sx1272. The difference could be the due to the difference in power output between the rx and tx. Anecdotally, I think it's fair to assume that the RSSI from transmit mode on the RX device on the quad would be lower, as it transmits at 40mw at all times. The transmitter module, which has much higher output value and likely a stronger RSSI for further distances because of its increased power output. Depending on how the telemetry frames are being scheduled/transmitted around within the blackbox of the crossfire firmware, it could be that the TX module is displaying the RSSI signal, as received from the RX and vice versa.
The expression you were looking for is "inverse square law", Joshua? 🤔 I don't know if it's the case, but since it is for the amount of light you get for a certain distance from the Sun, let's say... It would make sense.
Very nice explanation, but I'm still a bit unsure about what you said at about 12:02. Okay, so I've fell down from mode 2 to mode 1. Will LQ then show me 1:X where X is the number in percent which you said should be above about 70? Excuse me for the ill informed question, but I just got my Tango 2, and I haven't really installed my RX yet (just connected it) - and I've never used Crossfire before. Is the X number the "total link qual" across all three modes, or can I expect to have a full range from 0-100 in each mode? As in, what will X be, at the time I drop from 2 to 1 and 1 to 0? Thanks, dude.
Hey Joshua, love your content has helped me alot. Have a question. Ive followed steps and ive done it several times. But i dont get LQ on OSD but it does show on OSD beta flight screen... what can i do to get this value on my goggles screen?? Thankss
@@jordanb6029 I need help haha I only see RSSI even though I've set my Tango 2 on LQ on Channel 12 I got the dji Goggles. LQ shows up on Betaflight OSD enabled but it doesn't show up on my goggles only RSSI. So is my RSSI my LQ since I have the dji goggles???
I never understood the purpose of the combined "RSSI/LQ" mode, it's just a broken and meaningless number - Just pick one or the other. (And I fully agree with your conclusion, just use LQ and ignore RSSI - It doesn't add anything over LQ.)
Hey Joshua, thank you for the video got most of my questions answered, but am getting into TBS with tracer as my 1st XF system, and the LQ on OSD shows 1:100 when quad on desk, is that because tracer has a constant latency mode ?
My rssi seems to start out at around 65 to 70 but drops rather quick to 45 to 55 but a ¼ mile out will get down to 25 to 35 depending on orientation of my quad. That worries me.
Enhorabuena por tu canal es muy bueno! Oye como subo la potencia rssi ? Yo ahora la tengo entre 50 y 60 😢 y se me va la telemetria al pilotar a 10 mtrs
Can you use both the crossfire RSSI and the analog RSSI on an aux channel? Want to see in the goggles and the other I like to use as a warmer/colder device to find my drone by having the value played over the speaker
Hi ! Joshua i have a question for you , (Because your the best at it ) i ´ m a big fan of the crossfire system because of it reliability and Link quality but my question is, i want to fly my mfd crosswind 1950 mm ( big plane) with a eagle tree vector flight controller in sbus so it means i will need at least 4-5 outputs for 3 caméras( vidéo switcher ) plus a feyutech 3 d gimbal and navigation lights so , what would be the best crossfire receiver with enough outputs for long range fright the diversity one or others . NThanks joshua
That's why my RSSI % on R-XSR and XM failsafe at like 40 to 45 . And my R9 failsafe under 12 RSSI . I always have to fly out and find average failsafe value. Makes a lot of walking with R9.. damn R9 took 300 meters with trees inbetween. I used LQ just give heads up before failsafe. If drops at all getting ready to failsafe. Goes quick. Doesn't really work. Now I got crossfire in the mail
It’s been a year since I played with RSSI on my first Taranis, just can’t believe how quickly things have changed. With my second Taranis I’m running crsfshot on iNav and for literally the whole day I was struggling with two RSSI links under the receiver tab. I still used the old way to setup so RSSI didn’t even work. Now I’m going to disable RSSI on iNav to see what happens.
You forgot to tell us to change the BF Font to have a nice LQ Icon instead of that ugly "(" 😅😘 And I was sooo hoping you tell us the best way to have LQ in the DJI FPV Goggles' OSD 😭 For now I had to go back to the old Aux Channel method to display some sort of LQ Percentage in the DJI OSD. Best regards from France
Thanks for the great vid! So DJI FPV users still need to broadcast LQ via AUX channel and use that as RSSI so DJI will show it? Is there a way to set LQ as RSSI so it doesn’t occupy an AUX channel?
Did a bit of testing around how CRSF 150hz forced performs on the track... Was a bit surprised at how fast the LQ drops at what would be considered very close range (around 50 meters). It's a tough tradeoff, as 150hz mode was marketed toward racers (as a low latency link), however you compromise the quality of your RC data from the large number of packets that get dropped. On 50hz, the link is much stronger, but at a much higher stick to quad latency. Here's a quick test showing CRSF on the right, and ExpressLRS on the left. CRSF was on 150hz at 100mw, and ExpressLRS was on 250hz at 40mW: ua-cam.com/video/3yA_3R2F_XI/v-deo.html
Being from the UK I hope I can speak for all of us when I say NO apology necessary JB for flipping us off, after all, we have to put up with you pronouncing "aluminium" wrong all the time lol Great info about ( LQ ) very interesting
So there's something I guess I don't understand. Because of the asymmetrical Tx power of the Crossfire TX Micro (up to 1w) and the nano Rx (I believe only 10mw) it seems to me that you will lose telemetry long before your LQ falls to RFMD 1 and 70% LQ and in fact I've been trying to test this and that's what I find. I was simply trying to see of my audible warnings in my radio were working but those logical switches never get tripped before I lose telemetry. I guess using the telemetry in your OpenTX radio isn't very useful for that reason.
Maybe you can help me.I finished my first build! Squirt V2.1 and I can’t see the lq, warning and artificial horizon onto DJI OSD. I can see the rssi, model name, and battery voltage. I am using a crossfire nano, and bf 4.1.2..Thanks. And you are awesome!
Hey Joshua. Old video so I don’t expect you to reply but would be great if you did. I have just got the new radiomaster boxer in elrs 2.4 and wanted to know how you setup RSSI/LQ like this for that setup. Is it the same?
Wow man I've been wondering about that rssi and lq lower values...I did already know about those two lq numbers but my rssi shows up as half as soon as I take off..has me really spooked I'm. Like 100 meters away and 40 rssi what gives. Thanks for this one.
This video is so fucking timely..Thank you..If you look at my FB you will see this was driving me crazy. Finally today gave up and switched all my quads to just LQ in OSD cause I coudln't stand seeing RSSI being so off from the normal 99 and I didn't understand it. LOL Also is why the RSSI value is different. It's in the release notes..the way that the 'RSSI dBm' value is tracked in the firmware has changed to use actual dBM value in a range of -130 to 0, instead of the previous version's 130 to 0 range. This means that if a custom setting for osd_rssi_dbm_alarm is used, this will have to be changed to be the inversion of its previous value (e.g. 60 becomes -60) (#9550);
Hi. i have just purchased the crossfire nano, think it is the same as micro v2, so do not have to put rssi on an aux channel, but i cannot set the lq option in my dji goggles even though selected on the osd, so rssi value only or nothing, not keen on the the low rssi values everyone seems to be getting with the newer crossfire modules. i had to re adjust the scale for my r9 in the cli to match osd rssi, but that was easy as the telemetry scale was easy to match by looking at the rssi reading on the telemetry screen on the radio, but on crossfire this just reads 99 all the time and does not move. for any suggestions welcome. thanks.
@@sakfpv8444 I think I'm going to stay on this version. At least until they fix all the bugs on the other ones. Another thing that I don't like is how they seem to have simplified tuning. Which is mostly a good thing but I feel like people won't learn as much about tuning their quads if all they gotta do is move a slider and it automatically adjusts the pids and filters. Its a cool feature but I'd prefer to go through all the axis and filters myself in order to learn more about it.
Hey Josh I don't think there is anything wrong with the RSSI value. You had the quad behind you on a table but not sure where your TX is. In dynamic power mode, your TX is most likely at 10mw, so if your quad is behind you and your transmitter is on your desk with you and the antenna is pointed in the opposite direction, you will most likely get a low RSSI percentage value. This was the case with me. When I set the power to 500mw it went right to 99. Also, antenna signal polarization plays a big factor. If your quad antenna is laying horizontal(which it most likely is on a 5" freestyle) and your TX antenna is vertical, you will lose some RSSI. You'll see the difference when you twist your radio to match the same antenna orientation then back to being perpendicular to one another.
![☀ Тесты ExpressLRS. Фристайл / Задержки / Дальность + аналитика [Happymodel ExpressLRS]](/img/n.gif)
literally just got my crossfire rssi wokring, im like whys it so low? This video comes on autoplay and i hear your voice in the other room talking about my exact issue. What a hero
google algorithm knows you well.... a little too well.
Damn! No LQ on DJI yet. I just got crossfire and was looking forward to 99% RSSI forever.
I'm soooo glad you made a video about this. I literally just got crossfire yesterday and I thought I had done something wrong somehow! This is a huge relief!
What was yours showing? I was showing 40-60 rssi even up close lol
@@TheBigRat770 same here
Flying In Braille FPV Do you still fly with RSSI on on your OSD or just LQ?
@@TheBigRat770 just lq otherwise I get false warnings.
@@flyinginbraillefpv1819 Thank you!🤙
What am amazing WSU to describe RSSI vs LQ. Never heard a more apt description than the concert and quiet room. Nailed it
2:18 shoutout to the bug flying in the background.
JB made the fly from breaking bad into a real thing!
I can't tell you what calculation Crossfire is doing when it outputs RSSI on an aux channel - you'll have to ask TBS about this. When Betaflight gets the RSSI directly from the CRSF link statistics frame it's supplied as dBm with a documented range of -130 to 0. Betaflight scales this range from 0 to 100% and that's the RSSI value presented.
Too bad you can't reply with helpful information like this without blowing up on a 13 year old on Facebook.
Everytime I'm having a question about FPV theres a video from you answering it. So great, thanks so much!
Those of us using DJI can't just ignore the weird RSSI behavior and use LQ. Only the selected RSSI channel, or default RSSI (when channel selection is disabled) goes into the MSP telemetry stream that DJI uses to display on the OSD I went the disabled RSSI channel route, and set the RSSI scaling factor in the cli to 125% which makes the new lower values seem a little more normal.
FWIW, LQ is great at telling you if you're battling external RFI but at the true limit of range it may drop rather abruptly. I prefer the more gradual fall-off of Rf RSSI and find it more useful for detecting issues with Tx or Rx antennas or connectors (will see low RSSI from the moment of launch, rather than a sudden drop in LQ a few hundred feet out).
This is interesting. I’ve got LQ working on DJI by selecting LQ on the RX and RSSI on betaflight OSD, but like you say it can be at 100 and them drop very suddenly, I do prefer a more gradual falloff so I can more easily gauge if I should consider turning around or gaining altitude. How did you apply the change you mention?
daemn42 As a fellow DJI user, I have been struggling to get lq displayed in my OSD. How exactly did you set it up in order to get that data? Thank you in advance.
@@ConnectWithCain I think that's a question for @Sorry Charlie above, who says he got it working. I use RSSI, and prefer it over LQ.
Sorry Charlie As a fellow DJI user, I have been struggling to get lq displayed in my OSD. How exactly did you set it up in order to get that data? Thank you in advance.
daemn42 Your right! Thank you
You always have the video and info I need. Thanks for being so thorough and informative. I’ve learned SO much from your content.
im also glad you made this video, i started to get really confused about all the different rssi values, but since i had my first fail-save with crossfire after flying not more then half a km (although it was quite close to a cellphone antenna tower) after flashing the new firmware on it, im not convinced its actually the same reception as before (cuz i flew there before and never had any issues and also i was glad GPS rescue worked and the quad came back to me).
about half a year ago i came to the conclusion that lq is more important then all the other values but i still left them in the osd just out of curiosity and when i did my record-distance-flight (5.34km as of now) the values stayed fairly consistent and in a range that id expect but then other times they seem to jump around randomly even if im much closer and also pretty much direct los, so ....
also im starting to get very annoyed about the tango 2 telling me "sensor lost" ALL THE TIME and Ive wrote tbs about it and the only response was an explanation of what that meant (it loses signal with one or more telemetry sensors due to the fact that telemetry on the nano rx is only sent at very low tx powers) and the only solution to the problem i found so far is changing the wav file to an empty one, but that's not really a solution...
even though crossfire is (in my humble opinion) far superior then anything else on the market, that's somewhat decently priced, im starting to get a bit pissed of by all the annoyances it caused me the last couple of months.
hey @Omegron, about your "sensor lost" problem, I think it may be related to the "telemetry lost" problem wich is solved by changing a transistor in your taranis. Crossfire now send with their transmitter the piece you have to install on the mother board of the taranis. Here a tuto about it : www.wearefpv.fr/tuto-crossfire-taranis-qx7-20180726/ (sorry it's in french but that's for sure you can find many in english). But maybe you've already done that and your problem comes from something else...
And about your failsafe near a cellphone antenna, it happened to me too ! At less than 200m away. I suppose we should avoid flying around those.
I have the same problem. Did you find out which sensor it should be or is it a general telemetry problem? After I attached all antennas vertically it got a little better, but now it says telemetry lost / telemetry recovered. This short-range error is known, read the description of the Diamond antenna.
Well, i sure dont hope i have to tinker with my fairly new tbs tango 2 and back when i used the taranis x9d+ with the crsf module i never had this issue (because i didnt use telemetry at all😅)
And no i dont know wich sensor this causes but it would be lovely to be able to turn telemetry sensors on and off individually. Or at least disable the alarm without having to change .wav files
@@omegron6000 In openTX you can disable single sensors, but need to know which one. A friend asked me yesterday why his GPS is constantly losing satellites.
Although he now has the latest and best spectrum receiver with strong telemetry transmission power 🤦♂️. We have very small problems compared.
That's why I haven't tried "force Telemetry" yet, but maybe that will help. I guess that the sensor does not disappear but that it is simply no longer possible to transfer all values.
@@BBFPV thanks for the info (didnt know i could do that), ill try disabling different sensors and see wich one causes the issue.
So confusing as I am still getting used to Crossfire... but I think you helped simplify it for me and I know what to watch for now. Thanks JB.
Thanks for this Joshua because it blew my mind 🤯 spent good few hours hunting that 99
Listen to that radio for low RF alarm , turn round come back 👍🏻
Thank you Joshua! I had to change channel on NANO from 8 to 12. I can't give up the other switches. I tried 12channels before and I don't remember seeing any latency issue. Again, thanks a lot! I can now see LQ via RSSI value. You're the man! 💪
Every time I have a random issue with my quad, I do a Google search and invariably, Joshua Bardwell has already answered it. Thank God for you, Joshua Bardwell.
Searched the whole day for easy answers about the LQ, thank you for this video 😊😊
People have been telling me R9 sucks because crossfire has 99% rssi forever and R9 drops off in a few hundred feet, and I'm an idiot for choosing R9. I understand the difference between LQ and RSSI, but the majority of CF fanbois I try to explain it to seem unable to admit that both system work the same, but CF shows link quality while r9 shows actual rssi. I will be posting many links to this video in the future. R9 still has it's issues, changing protocols being at the top of the list, but nice to see someone smarter than me finally explain the rssi/lq situation. Great video as always Josh, keep up the good work.
they both work, r9 is just way less easy, user friendly, and less American than r9, plus frSky does typical chinese shady stuff
Unfortunately Frsky can't seem to fix their firmware bugs though and R9 still has all kinds of frame rate problems (drops, duplicates, random timing, etc.) which messes up RC smoothing and feedforward. So there's still that. And it's really just crappy firmware as the underlying chipset is the same as in Crossfire.
@@M.TTT. I'm fairly sure crossfire is not made in america, and Trappy is Swiss, so how exactly is crossfire more American than R9?
@@BruceLuckcuck I have not experienced these problems, I'm pretty sure that they are due to the slightly less user friendly nature of R9, but it works for me. Crossfire is also a fine choice and I begrudge no one for choosing it.
@@stevecorwonski385 Then you clearly haven't looked at a blackbox log to see what it's doing to your radio channels and feedforward and the resulting motor spikes they cause. Not a "Crossfire is better" comment, just a R9 has crappy firmware comment. And they've been unable (or unwilling) to improve it even with the Betaflight devs pushing and trying to help them.
I became a Patreon with this video!
You see Joshua you are an expert adjunct to this hobby and we can’t live without you.
Thank you so much. I thought something was wrong with my crossfire. You're the best!
Wow I just went to crossfire and this really helped me alot cause im mostly using rssi right now.
Why? If your using CRSF you never need to worry about rssi again. Lol just busting your chops. It’s freaking awesome huh? I have it on my OSD but I don’t really look ever. I lose video well before I ever loose signal. I run 100&500 mw on a full size TX and go 2+ miles out on 600mw VTX
Thank heavens you addressed this. I was up til the sun rose!!! All night thinking it was a vtx table issue. Oddly enough when i load smart audio for tbs 2.0 it wont load. So i had to add channels manually..... Love ya brother hope the fams doing well
Good info on something that shouldn't be this confusing....thank you.
Thank mate! You finally answer to all the question I had about lq and rssi in Bf 4.2. I feel much safer flying my quad now 🙏🚀
Late here again but wow you're awesome. Glad you're still doing this after all this time.
just was about to go to the field its 11.00 am in the morning , but this very important video drops. now lets learn this , will headover to the field next week .
Thank you for all the effort you put in helping people!
Just another random thing I needed help with. Thanks per usual Joshua.
Thanks for all the tips, Joshua! 😊
Stay safe there with your family! 🖖😊
Thank you for this video. My crossfire has always displayed like this. This has been big help👍👍👍
Just getting into crossfire & this video will help me out. It seems all confusing but hopefully I'll figure it all out. Excellent review Joshua!!
Thank you so much I've been searching for this answer for months now. I finally understand. Thank you
Let us know when you get that fly 8:44
I skipped to 8:44 just to see that. Thank you. I'll continue watching now
Great explanation of a tricky subject Mr B...🤔🤔🤔😀🇬🇧🇬🇧🇬🇧
Thanks for posting this. I always wondered what LQ was good to go
Think it was pre 4.2 that Crossfire has a component of RSSI LQ on the UART output so you dont need the channel output RSSI. It wasnt even 4.2 that did this but like 4.0 or 4.1.
Seems like the RSSI value was lower sooner like you noted in this video.
I am now using all 3 values for RSSI values up together. But the 4.2 changes screwing with LQ makes me want to just stick to 4.1
Just wanna say thank you Joshua...THANK YOU!
thank you mr bardwell
Just got a crossfire micro tx starter kit. Got everything set up, mounted etc...watched all your videos and cant figure out my issue.
When I first plug in my quad, i'll have 2/100 and 50ish rssi. After a few seconds of just sitting there, it goes to 1/100 with 30-35 rssi. Tried a different rx, higher power, different antenna, checked the region and freq...all appears to be correct. I have yet to fly with it this way because I feel I'll failsafe in less than 100 yards! I updated the tx, rx, and even struggled through an open tx update. Nothing has helped. I also took the module apart to make sure the ufl was still intact. Did I get a bad unit??? Little frustrated. Never had crossfire before and so far ive got a pretty bad first impression of it
Btw I think they have to fix something with alert message. Sometimes I got a blinky ( for less than 1 sec) alarm message in the center for link quality, also if it never went to 1:***.
Joshua, I think you need to upload the latest default font for 4.2 and that "(" will change to "LQ"
Hmmmmmm but the 2:100 is the same right?
Never mind. Kept watching the video.
I was just about to say this. Re-upload the font and the "(" will be "lq" again
@@JoshuaBardwell Yeah, the numbers are the same and the readout is correct. It's just the font for the new symbol they're using in 4.2
Yes. Reupload any font and Lq will appear. However there is a catch. You have to reupload the font with the battery plugged in, otherwise it won't update properly.
So: 1. Plug in the battery
2. Connect the USB and flash the font.
3. Call JB from the future for an update :)
Thank you! I was thinking there was something seriously wrong with my Crossfire upgrade having come from FrSky XM+ RSSI% values.
My first 3 years of FPV I used TBS stacks with the TBS OSD and I found that I rarely look even at the LQ as the power output was my safety blanket .Most of the time I am on 10mw and I am set to 500 dynamic so if it shoots up to 500mw then I pay attention to the numbers but that is not a regular occurance as it rarely passes 25 . The thing that confuses me is I swapped a couple of my stacks and have them on Betaflight 4.2 and with only the stack changed I now hit 1:70 very frequently whereas in the same area with the TBS OSD it never went below 296% . Its like it reads the telemetry different but it unsettles me so I went back to the good old 99 on a couple of them and still have 2 quads on TBS stacks . I did just buy a Unify Evo and am loving that it gives me the 300% scale and my power output but maybe its just because its what I am used to . I wish Betaflight were able to implement output power in the OSD but I wont tell you what the reply I got was in the betaflight group . Nice video .Its good to have this for people to see
Betaflight just reports the number provided to it by the RX, nothing more nothing less.
@@deltageek7177 But that is what the TBS Core does also and yet there are still massive differences in the numbers I see . Same with the Unify EVO it reads the same as the Core so there is definitely a difference between how TBS devices and Betaflight 4.2 reads that telemetry . This is why I would love Betaflight to implement the power output in the OSD as it tells a bigger story in a much more simple way . For me at least using dynamic power
I hate how the new way because in the corner of my eye I cannot tell when I go from 50hz to 150hz. Normally the number would vary down from 300 to 200, but now it always looks the same.
So 300 to 200 looks different but 2:100 1:100 doesn't? Mmkay.
No it’s not like that... my LQ used to vary and go to numbers like 268 and so fourth. But now it will sit between either 2:90-100 or 1:60-100 the number doesn’t move around
I also liked tot 0 tot 300 methode much more.
Someone batch processed their end of video call to action, great job :D
Super well-explained, JB. Thanks so much for this video!
Hmmm. Mine was 99% until recently. Now it's like 38% to 59%. Maybe a damaged antenna? I didn't make any betaflight or radio changes. It just started reading low and now I'm afraid to go more than 100 feet away because it gets down to the 30% area.
I believe that the link stats frame that feeds the telemetry values from the RX gets RSSI directly from sx1272. The difference could be the due to the difference in power output between the rx and tx. Anecdotally, I think it's fair to assume that the RSSI from transmit mode on the RX device on the quad would be lower, as it transmits at 40mw at all times. The transmitter module, which has much higher output value and likely a stronger RSSI for further distances because of its increased power output. Depending on how the telemetry frames are being scheduled/transmitted around within the blackbox of the crossfire firmware, it could be that the TX module is displaying the RSSI signal, as received from the RX and vice versa.
The expression you were looking for is "inverse square law", Joshua? 🤔
I don't know if it's the case, but since it is for the amount of light you get for a certain distance from the Sun, let's say... It would make sense.
Could you do a simlar video for TBS tracer?
Very nice explanation, but I'm still a bit unsure about what you said at about 12:02. Okay, so I've fell down from mode 2 to mode 1. Will LQ then show me 1:X where X is the number in percent which you said should be above about 70? Excuse me for the ill informed question, but I just got my Tango 2, and I haven't really installed my RX yet (just connected it) - and I've never used Crossfire before. Is the X number the "total link qual" across all three modes, or can I expect to have a full range from 0-100 in each mode? As in, what will X be, at the time I drop from 2 to 1 and 1 to 0? Thanks, dude.
Absolute so funny that you uploaded this video....I literally did this like 2 weeks ago, wasn't sure what made me do it.
Thank you for exsisting Joshua
Hey Joshua, love your content has helped me alot. Have a question. Ive followed steps and ive done it several times. But i dont get LQ on OSD but it does show on OSD beta flight screen... what can i do to get this value on my goggles screen?? Thankss
did you solve the problem? I also see in betaflight OSD but I can not see it on DJI goggles OSD :(
@@MrOlisko1980 do you still need help?
@@jordanb6029 is it possible to see LQ?
@@jordanb6029 I need help haha I only see RSSI even though I've set my Tango 2 on LQ on Channel 12 I got the dji Goggles. LQ shows up on Betaflight OSD enabled but it doesn't show up on my goggles only RSSI.
So is my RSSI my LQ since I have the dji goggles???
I never understood the purpose of the combined "RSSI/LQ" mode, it's just a broken and meaningless number - Just pick one or the other. (And I fully agree with your conclusion, just use LQ and ignore RSSI - It doesn't add anything over LQ.)
This video helped so much, thanks Josh.👍
Cheers JB. Most helpful!!
Bless you JB!
Hey Joshua, thank you for the video got most of my questions answered, but am getting into TBS with tracer as my 1st XF system, and the LQ on OSD shows 1:100 when quad on desk, is that because tracer has a constant latency mode ?
Exactly. Tracer is always in rfmode 1.
@@JoshuaBardwell thanks for the conformation!!
guessing this applies to ExpressLRS as well since it works on the CSRF protocol
Expresslrs puts lq and rssi on aux channels 11 and 12. It's not the same as crossfire.
My crossfire has been like this since I started using it, on every quad I ever put it in.
Same, been hovering around 60-70 and no failsafe yet
@@proz71ful19 yea seen a video. Guy was close at 60s. Went like a mile still at 50s 60s
My rssi seems to start out at around 65 to 70 but drops rather quick to 45 to 55 but a ¼ mile out will get down to 25 to 35 depending on orientation of my quad. That worries me.
@@DVJiMATT Test it a safer way.. leave the quad in the car front windshield and walk out a 1/2 a mile see what our rssi it drops out at
@@DVJiMATT Mine consistently drops out between 40 and 50 on an RXSR , x9 lite s.
I make it 150 meters lol
Enhorabuena por tu canal es muy bueno! Oye como subo la potencia rssi ? Yo ahora la tengo entre 50 y 60 😢 y se me va la telemetria al pilotar a 10 mtrs
Can you use both the crossfire RSSI and the analog RSSI on an aux channel? Want to see in the goggles and the other I like to use as a warmer/colder device to find my drone by having the value played over the speaker
Hi ! Joshua i have a question for you , (Because your the best at it ) i ´ m a big fan of the crossfire system because of it reliability and Link quality but my question is, i want to fly my mfd crosswind 1950 mm ( big plane) with a eagle tree vector flight controller in sbus so it means i will need at least 4-5 outputs for 3 caméras( vidéo switcher ) plus a feyutech 3 d gimbal and navigation lights so , what would be the best crossfire receiver with enough outputs for long range fright the diversity one or others . NThanks joshua
Thank you JB!
One new thing is that since BF4.1 with FRSKY receivers, I now have link quality warnings. Everywhere on the internet (awful
That's why my RSSI % on R-XSR and XM failsafe at like 40 to 45 . And my R9 failsafe under 12 RSSI . I always have to fly out and find average failsafe value. Makes a lot of walking with R9.. damn R9 took 300 meters with trees inbetween. I used LQ just give heads up before failsafe. If drops at all getting ready to failsafe. Goes quick. Doesn't really work. Now I got crossfire in the mail
Frickin great video Joshua! Helped out a lot!
It’s been a year since I played with RSSI on my first Taranis, just can’t believe how quickly things have changed. With my second Taranis I’m running crsfshot on iNav and for literally the whole day I was struggling with two RSSI links under the receiver tab. I still used the old way to setup so RSSI didn’t even work. Now I’m going to disable RSSI on iNav to see what happens.
You forgot to tell us to change the BF Font to have a nice LQ Icon instead of that ugly "(" 😅😘 And I was sooo hoping you tell us the best way to have LQ in the DJI FPV Goggles' OSD 😭 For now I had to go back to the old Aux Channel method to display some sort of LQ Percentage in the DJI OSD. Best regards from France
Sorry about that. The fix is to reupload the font using the Font Manager button in the OSD tab. ua-cam.com/video/3GDK02sOtsY/v-deo.html
@@JoshuaBardwell ❤️
2:100 LQ forever!!!!!!!
No... :-)
This is awesome! Thanks Josh!
Thanks for the great vid! So DJI FPV users still need to broadcast LQ via AUX channel and use that as RSSI so DJI will show it? Is there a way to set LQ as RSSI so it doesn’t occupy an AUX channel?
For now you need to use an aux channel if you use DJI.
Did a bit of testing around how CRSF 150hz forced performs on the track... Was a bit surprised at how fast the LQ drops at what would be considered very close range (around 50 meters). It's a tough tradeoff, as 150hz mode was marketed toward racers (as a low latency link), however you compromise the quality of your RC data from the large number of packets that get dropped. On 50hz, the link is much stronger, but at a much higher stick to quad latency. Here's a quick test showing CRSF on the right, and ExpressLRS on the left. CRSF was on 150hz at 100mw, and ExpressLRS was on 250hz at 40mW: ua-cam.com/video/3yA_3R2F_XI/v-deo.html
Thank you! I learned something today! and I dig the end of the video.
Amazing but on radio ? Witch value i must set? Rssi or lq ? And the scale? Offset and weight? Thx
I mean in discovery new sensor
Aww you made this for me! 😂🤣 Thank you!
Thank You Joshua!
thank you so much for this I was so made to get 45 RSSI on my crossfire not even a 1/4 mile
Being from the UK I hope I can speak for all of us when I say NO apology necessary JB for flipping us off, after all, we have to put up with you pronouncing "aluminium" wrong all the time lol
Great info about ( LQ ) very interesting
Can you explain this to me, i am from Germany. thx
Thanks jb! Very educational
my rssi shows less than 50 to start then drops to 30ish at 1000ft out.
FYI crossfire hype is real! happiness meter 🙏
You have just saved me. Thanks King
So there's something I guess I don't understand. Because of the asymmetrical Tx power of the Crossfire TX Micro (up to 1w) and the nano Rx (I believe only 10mw) it seems to me that you will lose telemetry long before your LQ falls to RFMD 1 and 70% LQ and in fact I've been trying to test this and that's what I find. I was simply trying to see of my audible warnings in my radio were working but those logical switches never get tripped before I lose telemetry. I guess using the telemetry in your OpenTX radio isn't very useful for that reason.
You will lose telemetry that's correct. But the lq comes from the receiver directly to the FC. So it doesn't need telemetry to display lq in the OSD.
Do we still have the RSSI or LQ put out on a channel in the RX? Since the values are directly taken from the telemetry of the rx... I guess not...
Is it the RX's RSSI, or the TX's? Is it not the cause of the difference when you go from the AUX channel to the direct read from telemetry?
Yea, why should we set RSSI/LQ on channel when we have smartaudio?
Running nightly tbs build for crossfireshot. Get radio warnings for signal
Maybe you can help me.I finished my first build! Squirt V2.1 and I can’t see the lq, warning and artificial horizon onto DJI OSD. I can see the rssi, model name, and battery voltage. I am using a crossfire nano, and bf 4.1.2..Thanks. And you are awesome!
Hey Joshua. Old video so I don’t expect you to reply but would be great if you did. I have just got the new radiomaster boxer in elrs 2.4 and wanted to know how you setup RSSI/LQ like this for that setup. Is it the same?
Wow man I've been wondering about that rssi and lq lower values...I did already know about those two lq numbers but my rssi shows up as half as soon as I take off..has me really spooked
I'm. Like 100 meters away and 40 rssi what gives. Thanks for this one.
This video is so fucking timely..Thank you..If you look at my FB you will see this was driving me crazy. Finally today gave up and switched all my quads to just LQ in OSD cause I coudln't stand seeing RSSI being so off from the normal 99 and I didn't understand it. LOL Also is why the RSSI value is different. It's in the release notes..the way that the 'RSSI dBm' value is tracked in the firmware has changed to use actual dBM value in a range of -130 to 0, instead of the previous version's 130 to 0 range. This means that if a custom setting for osd_rssi_dbm_alarm is used, this will have to be changed to be the inversion of its previous value (e.g. 60 becomes -60) (#9550);
That's dbm though. Why did percent change?
Today. Today is the day I become a patron.
Hi.
i have just purchased the crossfire nano, think it is the same as micro v2, so do not have to put rssi on an aux channel, but i cannot set the lq option in my dji goggles even though selected on the osd, so rssi value only or nothing, not keen on the the low rssi values everyone seems to be getting with the newer crossfire modules. i had to re adjust the scale for my r9 in the cli to match osd rssi, but that was easy as the telemetry scale was easy to match by looking at the rssi reading on the telemetry screen on the radio, but on crossfire this just reads 99 all the time and does not move. for any suggestions welcome. thanks.
Wow JB! What's the all up weight on that sucker? 8:44
That was a great way to explain RSSI and LQ
Always a legend! Thanks dude!
I’m still happily flying my Betaflight 3.5.7 lol. I got no intentions of updating
My 2 favorite quads have 3.5.7... I'm missing it on my 4.0 and up drones
@@sakfpv8444 I think I'm going to stay on this version. At least until they fix all the bugs on the other ones. Another thing that I don't like is how they seem to have simplified tuning. Which is mostly a good thing but I feel like people won't learn as much about tuning their quads if all they gotta do is move a slider and it automatically adjusts the pids and filters. Its a cool feature but I'd prefer to go through all the axis and filters myself in order to learn more about it.
@Joshua Bardwell From 0 to 300%, it would be more convenient to monitor and monitor
Great Video Thanks @Joshua
Everything is great. 👍🏻
Nice video. Btw joshua can i ask what is the best camera a Go pro or Insta 360 one r?
ua-cam.com/video/VuqXe9j0Jt0/v-deo.html
@@JoshuaBardwell sorry i mean go pro hero not max btw thanks nice comparison on 360 camera
Thanks again, as always. Peace
Hey Josh I don't think there is anything wrong with the RSSI value. You had the quad behind you on a table but not sure where your TX is. In dynamic power mode, your TX is most likely at 10mw, so if your quad is behind you and your transmitter is on your desk with you and the antenna is pointed in the opposite direction, you will most likely get a low RSSI percentage value. This was the case with me. When I set the power to 500mw it went right to 99. Also, antenna signal polarization plays a big factor. If your quad antenna is laying horizontal(which it most likely is on a 5" freestyle) and your TX antenna is vertical, you will lose some RSSI. You'll see the difference when you twist your radio to match the same antenna orientation then back to being perpendicular to one another.