DJI and analog CAN fly together. Stop FPV interference!

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00:00:00 - Interference: the biggest problem in FPV
00:01:06 - What is interference
00:02:16 - What does interference look like?
00:06:20 - Three conditions that cause interference
00:07:34 - Frequency means channels
00:10:27 - Real-world example: R1 vs. R8 at 25 mW
00:11:15 - Real-world example: R8 vs. R8
00:12:18 - Have I earned your support today?
00:13:26 - Avoid DJI 8 / Raceband 6
00:14:39 - Use R8 / DJI 7 to avoid WiFi
00:15:52 - Best practices for channel allocation
00:19:02 - Proximity: closer means more interference
00:21:02 - Real-world example: effect of proximity
00:21:32 - Real-world example: my quad is flying far away
00:22:19 - Real-world interference between DJI and analog
00:25:38 - Best practices for Proximity
00:26:49 - The biggest mistake DJI / Walksnail pilots make
00:28:00 - Everybody should reduce output power
00:28:54 - Doesn't pit-mode fix all this?
00:29:32 - Best practices for output power
00:30:47 - What do you care most about?

Опубликовано:

6 июн 2024

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Комментарии : 262

@ZorrotorFPV Год назад

Three weeks ago in Manizales, Colombia, we held a race and we had HDZero, Analog and DJI pilots flying at the same time. Yes, we know that in MultiGP USA nobody can't race with DJI but we didn't forbid them or made them buy analog stuff, we were like "Hey, come on, just fly with us" and that's all, it was cool. We raced HDZero R1, Analog R2, DJI 6 and Analog R8 200mW. The racetrack was 60m2 and it worked well :)

@visser677 Год назад

Been a lone wolf pilot for 5 yrs now, anyone else?

@ClareFPV Год назад

Me, 2 and a half years

@RandomMiscShit Год назад

Never flown with anyone.. trying to.l but no luck so far

@MattrOfTyme Год назад

yep lol doing fpv since 2015 never flown with anyone .🤷‍♂️ and never have been able to try dji fpv 💸

@thfpv4974 Год назад

2 years now

@justfly7730 Год назад

Yep...

@DanielZerem Год назад

there is this app for Android called FPV Video channel sorter. Basically you add pilots and bands that each pilot can tune in and it will give suggestions for each pilot which channel to use and have maximum frequency separation.

@AleksworxFPV Год назад

That seemed genuine. I’m that dji guy, it’s all I have. And so the others just make it easy by taking turns and making sure we’re vocal about plugging in things mid flight. Van Nuys has a great rc place called Apollo IX, and the regulars there will surely make you feel like you can hang, regardless of what you bring. Bring a full heart and an open mind. And beer. Shout out to Mike and the boys.

@cskasp Год назад

Still need to come through!! I’ve been solo for years now

@TRONCATFPV Год назад

I was literally just doing research on this last night. modded a cinewhoop that has a digital and an analog VTX to test penetration through houses and was curious what channels would interfere the least with each other. This video is on point! 👌

@drippyash7376 Год назад

I love your dronebuilds

@TRONCATFPV Год назад

@@drippyash7376 haha thank ya! Glad they've helped 🙌🙌

@flushfpv Год назад

Thanks jb. I been flying solo for about 11/2 yrs. Just recently met some new piolets that have been doing the same thing. All newbies. We always were confused about what to do. Now I can show them this weekend the rite way. Awesome jb. And thanks agian. Flushfpv.

@wesley4713 Год назад

Thanks JB for bringing it back to the basics that many forget - or just dont know yet.

@volkergoe Год назад

Thanks for taking the time and putting the legwork in to make this common knowledge! I regularly fly in a mixed group (dji/analog/hd0) and we have no problems up to 6 pilots. On the other hand everytime I visit racing fields I have to argue about the possibility of mixed flying and some people literally jump off the flight line when they realize there is a guy with a naked Vista in his switchback ;-)

@SpexFPV Год назад

Worthy of note that HDZero also has F2 and F4 frequencies available for IMD6 frequency allocation (R1,R2,F2,F4,R7,R8).

@felixtorres1010 Год назад

"Yeah I'm flying. I'm having such a good time." @ 21:44. 🤣🤣🤣🤣

@MCsCreations Год назад

Fantastic work, Joshua! Thanks a bunch for all the effort and testing! 😃 Weirdly, here I get less interference around band F channel 4... I really don't know why. Anyway, stay safe there with your family! 🖖😊

@MagicFPV Год назад

Very thorough video excellently explained. This would have saved me hours of research before I ran an FPV festival a year ago. I will be sharing this 👍

@mattsmith4843 Год назад

This is one of those videos i wish you did years sooner. Mad at you for taking so long, but happy you did this. funny how I could have used this a few months ago. Seeing those patterns are very important. thanks JB

@Ryet9 Год назад

"FPV Video Channel Interference Best Practices" Joshua Bardwell 5 years ago

@mattsmith4843 Год назад

@@Ryet9 that one is only analog dude

@MichaelRaveh Год назад

Thank you Joshua. Excellent detailed video on a painful subject to analog flyers at a RC airport. Especially with new DJI pilots who don't know better.

@aviphysics Год назад

The chart incorrectly lists Sharkbyte as being different from R1-8. HDZero/SB are now exactly the same as R1-8 and F2/4. This error on this chart has created a lot of confusion with new users and is super annoying. BTW, the group I fly with just does analog low (R1-4) and DJI high (DJI 5-8). This isn't perfect, but it gets everyone in the air.

@stevee7029 Год назад

Fantastic core information for any flight line, Joshua! This video will serve as an essential reference for years to come. Thank you, sir!

@litovillarin7525 Год назад

This is great! Thanks for your time and effort in doing this research. Hoping for a table showing the combination especially on analog and dji.

@reworkfpv7359 Год назад

Excellent information JB!

@J-J-S-S Год назад

Ty from Spain for share your knowledge!!

@FlyZoneFpv Год назад

Right on Jb . This was great 👍🏻

@ericlopez8182 Год назад

You’re awesome! Thank you for sharing your knowledge.

@HalfChrome Год назад

This is an excellent video. Thanks for making it

@aaronbengston3059 Год назад

Awesome video as always my dude!

@BikeGuyFPV Год назад

Also having a real pit on your quad is very useful along with having low power on disarm set-up on your quads.

@spikester Год назад

This is good technical content, fresh stuff like your 2000 rates video, keep going even though I know its hard on youtube to keep new content you have it down.

@Anzyclos Год назад

This. People need to see this. Way too many 50Mb/s DJI pilots at 1200mW and say that they're on channel whatever and we shouldn't be impacted, allthough 3 other pilots now are falling out of the air.

@KOrnhOliO1 Год назад

Awesome video, JB, Thanks! :)

@andreaspap Год назад

Thanks for the amazing video. I was following all these advice's but i had to collect information from so many other people. I think this is the fist video have everything all in one

@DankCloudzFPV 11 месяцев назад

Excellent information! I'll be sharing this. I fly analog and so it's easy to get blasted.

@TheDro Год назад

When I was first learning about how the signals worked I tried putting analog w gopro on a digital quad with air unit. I couldnt understand why i couldnt get it to work how i wanted even though the channels were far from each other. it was mainly that the receiver was right next to the goggles. it was so frustrating but make more sense now that i understand it better.

@orionmec Год назад

Thanks Joshua, I don't fly with anyone at this time but I want to so this was pretty eye-opening.

@DiraPictures Год назад

🫶Joshua, you are such a great leader to soooo much people who learn all this. Thank you so much that you share your knowledge 🙏 greetings from Germany. Here are 3-5 channels wich bringing continuous content to this. But non of them are going so deep. And i bet they all learned much from you in the past. Sorry for my bad english.

@RCRitterFPV Год назад

I must commend you for a great job doing these test. very thorough and informative. this is the JB Goodness Bravo Sir.

@fpvskuilly2882 Год назад

Joshua I love you! You are my idol XD. This video is pure gold.

@Crashtopher Год назад

This vidja was needed and appreciated.

@fredperry3063 Год назад

Great video. I hope it becomes your most watched one.

@harrisonbowie829 Год назад

I was at the park saw a guy flying I walked out to talk fpv and learn.I saw his drone fall.He when to get it and packed up but didn't want to talk.And now to day you told me why.Thank you.

@stqr5115 Год назад

Awesome, thanks!

@Fly_High_FPV Год назад

Super helpful video that all pilots should master 🙌 I've got a question about DJI interference tho. We typically fly 2 pilots on DJI 1200mw 50mbps on 1 and 3. We'll be fine flying together for hours, the same 2 people, the same spot, the same quads. Then all of a sudden, we'll both have a slideshow of lag. The screen will still say 22-29ms delay, but we both feel it and immediately have to land and switch to 25mbps to be flyable again. I understand DJI also has a sync pulse on R6 that I think is used for telemetry, and my current hypothesis is they stop taking turns and talk over each other. Anyway, curious if you can explain the behavior

@WKfpv Год назад

In my experience, I've flown with DJI pilots, all very knowledgeable, I myself been flying for 7 years. We know what we're doing. And still, it may happen one day all good, excellently range, excellent video. And the other, I see those horizontal lines all the time. It's annoying.

@HDBoy Год назад

Thank you for this helpful video 💯👻👍 Happy fly to everyone!

@testpilotian3188 Год назад

Our clubs policy to analogue v DJI digital is to put all the analogue on the lower end of the frequency and the digital on the upper end of it. Analogue vtxs start at its lowest frequency and move up to their chosen frequency, with DJI the system switches on in the public channel at the top end of the frequency and moves down to its chosen frequency. We also have other rules such as: everybody switches on together (at 5-10 second intervals) Our takeoff/landing area is about 25 foot away (much to the annoyance of the fixed wing pilots who think the two should be the same). Nobody uses pit mode or auto temp control (as switching from low power to full power kicked analogue out the air regardless of the frequency) Everybody sits at least 2 meters apart. Nobody powers up if “off sequence” (I.e. if you don’t get powered up in the power up zone, you wait for the next flight). Since we’ve implemented these rules, nobody has taken anybody else out of the air.

@volkergoe Год назад

That sounds pretty German to me ;-) but as long as it works I won't complain!

@califpv Год назад

Goggles 2 and 03 air unit don't do this boot up to channel 8-thimg anymy

@terryjohnson2619 Год назад

I think you have been watching our race meets, we just had our State Champions which Thomas Bitmatta won. Racing head to head with 7 Dji pilots and a heap of analogue pilots

@truey90s Год назад

I'm surprised they haven't developed a FHSS (frequency hopping spread spectrum) for video transmitters system like they use on radio transmitters

@dhanaanggoro1417 Год назад

Thanks!

@nitronut1723 Год назад

What a fantastic well made video. I will try to follow these tips. This video took a lot of effort to make. Glad I'm a Patreon, my money is put to good use with Bardwell at the helm.

@shockruk Год назад

I'm that Walksnail guy on the flightline. Well, I actually did learn something today lol

@PaulSokolov Год назад

Great tutorial. Any band scanners on the market? If I want to scan the field before flight -- (is it reasonable)

@re_rolls9858 Год назад

Hey JB I picked up your frame, and I’m building my first quad. It seems like the arms are able to move a very small amount even with the wedges in. I sent a quick email about it the other day with a video is this something I should be concerned about? It seems very minor but I’m curious about vibration.

@proximityfpv1722 Год назад

joined your patreon :) been flying 6 years so... Thx!

@jlarson42 Год назад

Very informative and helpful video. For now I mostly fly by myself. Periodically I'll fly with my son in law. But I retire soon which brings the potential of flying with others, this info gives me the tools I need to not be "That guy." 🤓

@Editer38738 Год назад

Great vid

@jobrache6405 Год назад

Can't even afford one drone, but I love the sport and the show. Thanks for the info josh

@willbachman5919 Год назад

Christmas is coming 😉

@mr.grub_438 Год назад

Are you going to make a video about the Cetus x because I am trying to get into fpv what are your thoughts

@1eightrcracing Год назад

Hay Josh I have a dji mavic pro 2 and am having trouble getting replacement batteries any idea as to what can be done with this drone as far as cannibalizing it for an fpv drone?

@williamlosch Год назад

This video reminds me of something i've been thinking about a lot lately. Recently, on my first FPV gig I was flying over water some of the time. During one battery, my video got stomped (looked just like when dji transmits/plugs in) thankfully I was over dirt in the parking lot and could safely disarm. But it scared me so bad & made me want to implement gps for position hold or RTH on my "cine" rigs. This is something that would be so useful in fpv and is often overlooked imo. Would I be limited to inav + GPS module to implement this?

@goldlucifer Год назад

beta flight has gps rescue function check it out

@Shauny_D Год назад

Can you post a link to that frequency chart?

@JIPPERR_1 Год назад

I learned something today 👍

@kallepetter Год назад

Great topic and very educational as usual. Do you have any idea why DJI calls Ch 8 Public? Before this video I thought it meant that is safe to start on and goggles are just listening. Apparently I guessed wrong. So what du the mean by the Public label?

@bertbeinaaf8314 Год назад

Is there a way to find out if a VTX outputs more power on lower frequencies?

@JoshuaBardwell Год назад

Buy the immersionrc power meter.

@gavakshitverma615 Год назад

What about flying with mavics and dji fpv? Should R8 works perfectly? Thanks for the help!

@erickoshinsky9374 Год назад

You put a lot of work into this video - Thank you. I got some answers to things I'd been wondering about. One thing I'm still curious about is whether band/channel choice makes any difference in video reception/quality (in analog). I typically fly B4 (analog) as I fly solo mostly. Is there any reason to change to R#?

@JoshuaBardwell Год назад

R8 avoids WiFi. Also, some vTX output more power on lower frequency, so in some cases you get more range on R1.

@RCRitterFPV Год назад

@@JoshuaBardwell I learned the R8 trick after I kept knocking my wife out of conference calls when I'd plug in... she: high powered executive, working from home on conference call with London times... me: want to play with my tinywhoop... Plug in... Her: god damn the internet just went out... can you fix it??? me: unplug whoop her: THANK YOU!!!! Best IT person ever....

@erickoshinsky9374 Год назад

@@JoshuaBardwell Thanks for the info.. You learned me something today.

@junkthe Год назад

Yeah, it's sooo goood to be true. And then Done!

@richardamiss7000 Год назад

That one DJI pilot who keeps accidentally flying on DJI public channel 8 and then gets mad when you knock him out.

@davidsaintonge6232 Год назад

Thats a great video. What about the suggestions of channels made by Oscar Liang for flying with multiple people and avoiding harmonics by using different bands? The page is called: "5.8GHz FPV Channels & Frequency Chart (Analogue & Digital)" I would have loved to hear about that.

@charly94xry34 9 месяцев назад

does the dji o3 work the same as the vistas?

@JekleFPV Год назад

So, to avoid trouble, everybody should fly analog or HDzero and simply don’t use the same channel as anybody else. That way: no issues and spectators can access any feed 😜

@GeordieMilne Год назад

"Yah I'm flying! I'm having such a good time!" As Bardwell runs around; Bowhahah 😂 Great information, thanks for putting this video together!

@Novau.u 3 месяца назад

I was flying r6 with some friends who have dji and nobody warned me that they were going to demolish my signal luckily he swapped off quickly and all was good so glad i did research on it cus I didnt know about dji defaulting to r6 (dji8)

@shadofpv Год назад

Been flying with other pilots on dji with my analogue gear for years now, just ask the dji pilots to go on 25megabit at the other end of the channels that you are :')

@timlong7289 Год назад

That obviously took a fair bit of research and experience - but its really complicated and likely will not be remembered on the day. Can it be boiled down into a sort of pre-flight checklist? I fly analog and so far always solo, because here in UK there just aren't that many pilots in my area. I do use a pre-flight checklist though, to make sure I'm complying with all the rules and flying safely. If this could be condensed into a "cue card" that I can keep in my kit, then when that day comes that I meet another pilot, we will have a handy quick reference.

@JoshuaBardwell Год назад

Yes. There are sections in the video named "best practices". That's the checklist.

@PeterPetermann Год назад

in europe R7 & R8 are not only outside of whats used for wifi, they are also outside of whats legal to be used.

@tychoschutte9940 Год назад

Can you do a revieuw of the insta360 one rs please?

@geordil Год назад

23:58 - vtxs on far separated channels. 24:38 - vtxs on the same channel. Was that interference with them on the same channel or highly separated channels? edit: Okay I watched it a few times, and I see where the transition happens. Just wasn't clear from the dialogue.

@RickLaBanca Год назад

Do the digital vtx all have the betaflight option to be at lowest power till armed like analog?

@skree_fpv436 Год назад

Not in Betaflight but DJI has an option in the goggles that you can toggle on/off that will keep the vtx at low power until armed.

@Clickmaster5k Год назад

There problems have already been solved years ago for control links. Tracks and flying fields used to have frequency charts. Now we have frequency hopping and things like that. Can any of this be applied to VTXs?

@JoshuaBardwell Год назад

The problem is that video links require much more bandwidth than control links. Digital video links use spread-spectrum and really make the most of the available bandwidth, but at the end of the day there's only so much you can squeeze into the spectrum.

@TorontoFPV Год назад

Thanks jb! I'm mostly a lonely pilot

@DesyncFPV 10 месяцев назад

I got lucky the other day i guess....i flew on 800 analog with r polarization on band 5 right next to analog on band 3 w 400 right polarization and dji on band 1 w left polarization and we were all right next to eachother and i even chased my dji buddy around...new to fpv and im learning there is soo much more to learn and edit after watching i guess we got it right

@tigfpv3821 Год назад

It’s kinda a bummer 4 of us on analog all sitting together and 1 lone dji in the woods n he’s a good guy just my opinion, any word on orqa digital? Thanks :)

@digitaltitan Год назад

Joshua, the spectrum analyzer on my rapidfire shows DJI using channels 1 & 2 for 50Mbps. Am I wrong?

@JoshuaBardwell Год назад

The 50 Mbps channels are twice as wide as 25 Mbps so I think you're right.

@RCDUDEFPV Год назад

Thumbs up JB, Great advice

@Dairy_Air Год назад

Thanks for your time. Here's a comment, a like, and a subscribe.

@Grim_fpv Год назад

Been to events where there has been 3 on Dji and 3 on analog in the air at the same time.

@soundscrispy Год назад

For future videos, it would be nice to see a picture-in-picture view of in goggles and the field of you walking about.

@georgeaura Год назад

Would just each person using different circular polarized antennas help any like if there is 2 pilots one uses one and the other uses the other?

@JoshuaBardwell Год назад

If there are less than 3 or 4 pilots, it's not necessary to go to this length. If you want 6 or 8 pilots, then using alternating polarization can make a difference.

@tymoteuszkazubski2755 Год назад

If you are in a space with limited multipathing (no large metal objects nearby) it will help, assuming you are using antennas that maintain circular polarisation well, as LHCP signal entering RHCP antennae will experience destructive interference equal to removing circular component from the signal (typically circularly polarised antennas don't maintain perfect circularity especially off plane). As each reflection switches polarity of the signal LHCP to RHCP and vice versa in heavy multipathing you will be receiving odd numbered reflected signals.

@lowies1dubbing Год назад

I think bandpass filtering should be applied in the receivers to avoid any form of interference. Even powerful weather radar also gives this effect internally in the receiver. I hope dji and walksnail have applied this. So if a powerful signal comes in, all electronics can be completely disrupted. I understand that WiFi equipment has a bandpass filter. But I doubt whether this is also the case with analog fpv equipment.🙄

@JoshuaBardwell Год назад

They all have a bandpass filter. That's how they tune to a given channel. But the front end amplifier is before the filter and it can be overwhelmed by a powerful signal of any frequency. This causes it to reduce its gain, meaning your signal goes away and now the interfering signal is seen.

@sams9716 Год назад

There needs to be more split style analog cameras for analog.

@Editer38738 Год назад

Will power lines interfere with fpv dji digital? I keep falling outta the sky when I fly over this set of power lines?

@willbachman5919 Год назад

There could be some kind of mobile data thing maybe

@kurtzFPV Год назад

Does anyone know if interference can occur between DJI camera drones and DJI FPV? I more often run into this situation than other FPV fliers.

@fpvcruzer Год назад

I was just wondering about this! Sounds like from your experience it does.

@bigeasymohlere1 Год назад

Me and my buddy, only one. And trying to plan a day we’re both free is rare

@sandersassen Год назад

/methinks someone plugged in on Joshua recently and he's just venting some frustration! :D

@chadhamilton1059 Год назад

All this talk about output power and frequency reminded me about ham radio licenses. So my question is do I need a ham radio license to fly at higher output power in the US? Or do I even need one at all?

@JoshuaBardwell Год назад

To use an analog video transmitter, the FCC expects you to have a ham license. For Part 15 certified systems like the DJI FPV system, you don't need one.

@chadhamilton1059 Год назад

Thanks

@user-fc3sr9bo1r 10 месяцев назад

Analog will be around for long time because in a hobby that is considered one of the most expensive on the planet as long as there is a market for cheaper equipment, they will keep cranking it out.

@MadBear196 Год назад

I always use E4 or E8 and never have problems flying with friends that have both digital and analog, because those channels are completely out of the range

@hergamm_9219 Год назад

hey! this video talks a lot about how DJI stomps analog, but what about the other way around? does analog stomp on dji? if so, to what extent?

@JoshuaBardwell Год назад

Yes it can interfere but DJI in general is better at staying flyable in the presence of interference.

@hergamm_9219 Год назад

@@JoshuaBardwell ok thx! I just switched from dji to analog for financial reasons, my fpv friends (all using dji) are now complaining that they will get interference from me xD I'll be sure to send them this video, so informative! thx !

@daveopie1234 Год назад

My drone "friends" (maybe soon to be former drone friends) will power up to change channels with a drone that was using DJI1200mw 50Mb channel 2 when they were flying previously, if they find out I'm on channel 3 (which is DJI 25Mb channel 3 because I'm trying to be nice to others who are flying with me). That's a conflict. I'm tried of crashing so I don't fly with them often any more.

@JoshuaBardwell Год назад

You just can't fly with people like this. It's a shame.

@PetrolMediaInc Год назад

I don’t know why this keeps coming up? Of people check signals and digital flies at 25 instead of 50 it’s not a problem. We had a mixer of 8 pilots in the air analog and digital.

@JD-FPV Год назад

We currently run all three systems on raceday as demonstrated in the link: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IFe0VGH9lJk.html our requirement is that all pilots be able to get on the assigned channel and be picked up by dvr and timing, no special heats or reserved channels, we use the IMD6 set. Best case for protecting pilots from interference from the DJI goggle is both physical seperation, and we use a metal wall for added shielding. We found the timing gets much more reliable with another metal shield blocking the DJI goggle LOS frrom the timing devide (8-wa laprf). Our DVR is done by hdzero events rx's (for analogue and HDZ) and raspberry pi running cosmostreamer (for DJI) It can definitely be done, but it generally is a lot more work for the race director to keep it all running, timing still not perfect, and DJI DVR can play up with usb's not seated or pilots not having the thermal protection disabled in the goggle. The analogue pilot in the heat at the timestamp had a damaged vtx from memory hence the bad interference, and our Events rx's are close to the DJI seats. Generally the pilots have better signal than the DVR

@sonythan Год назад

The issue about digital is the protocol still owned by the company that do not want to share it. I hope someday there will be a community that create somekind open source and free to use.

@RomainCavallini Год назад

Oh, you mean, you can maybe use HDZero?

@sonythan Год назад

@@RomainCavallini thank you for the information. But actually i hope that some kind of opentx or edgetx for digital video transmission. So any brand or manufacture can create the product for it. Or betaflight, ardupilot, cleanflight, inav and so on. 😊