What you NEED TO KNOW about the DJI Digital FPV System

[@KreezeTV]

13:47 the reason the clips are out of sync is because the way the goggle dvr is encoded is to just drop the frames that the goggles don't receive and so the goggle dvr has less frames and therefore finishes sooner than the local recording. it doesn't have anything to do with the latency in real time

[@AlessandroGarabaghi]

please correct this video. this is a lot of false information.

[@ummagawdFPV]

Yes, you’re right. What happens to the goggle DVR is a result of missing “frames”. But what you experience in the goggles in real time is latency and there is a correlation. If the real time goggle view wasn’t experiencing latency, there wouldn’t be any missing frames, and the 2 clips would line up perfectly. I was trying to keep the explanation short in why I couldn’t simply show the raw DVR footage to show what the experience is like when latency occurs.

[@KreezeTV]

@@ummagawdFPV we need to get some more research on what the latency readout is when the goggles start dropping frames. it's a shame that the dvr doesn't record that. perhaps in a firmware update

[@AlessandroGarabaghi]

ummagawd no there’s a missed frame but you technically jump that frame and are then linked up with the air unit (what it’s currently latency). Lag doesn’t stack up.

[@AlessandroGarabaghi]

ummagawd there is no data for the goggles to record.... Dji could insert a black frame but they prob prefer to focus processing power else where. Digital drops packets and there fore the goggles have nothing to record, you essentially skipped that frame and catch up with the air unit

[@Gosuminer]

You actually beat Josh in thorough and relevant testing by a mile. Thank you.

[@PrawnPomotion]

Thanks for taking the time to fill in the freeze frames! Every other review mentioned that the frames would freeze but I never saw what they were talking about. When I looked at other reviews I would just think to myself that whatever they were talking about wasn’t that bad. It might have been time consuming, but it was worth it since your video is the only one I’ve seen that actually demonstrates to the audience what you’re seeing.

[@leonfpv8261]

This is a great video on how these technologies play with each other. 1. The dji will failsafe when plugged in on because it sends both control link and video link using 5.8. This sucks because you have zero chance of trying to rescue the quad. 2. With the analog receivers, we have to keep in mind Rapidfire does signal rejection. Hence its able to provide a video signal even when the dji is plugged in on it. However, this also tells us that the DJI goggles do not have signal rejection because the video locks up when analog plugs in on it. So moral of the story of a DJI pilot shows up just let them have race band and the analog guys use another band. Actually, it would be interesting to see what the dji system does if an analog signal on another band plugs in next to it. Even though the bands are different I wonder what that noise next to the goggles would do. Great video bro!!

[@ummagawdFPV]

Ahhh man you right, I should have brought up that RF has signal rejection features!

[@PowerScissor]

How does the signal rejection work? I've had someone plug in next to me on the same video channel and my Rapidfire switched to showing the video from his camera. While I didn't failsafe, I had to disarm immediately so I didn't end up over the lake we were flying by....so same result. Is that a scenario where Rapidfire should have rejected his signal...even though his quad was 200 times closer than my quad?

[@leonfpv8261]

PowerScissor if it’s the same channel and band it won’t reject it. But if it’s a neighboring channel on the same band it will reject it and try to stay locked on your channel. With analog your video can bleed onto the channels next to it, hence channel spacing when you fly with others. It also depends on the vtx being used and it’s power output.

[@dougsisk619]

Tommy, you rule. Most legit, OG person in fpv in my opinion. Thanks for making these videos.

[@krazykyle85]

This is sooooooo much better than Bardwells test. Good job on the edit

[@davidunderwood1907]

Freestyle Lifestyle you got to do some serious science to beat ole Josh Bardwell at an fpv test. Tommy like "you gonna learn something today".

[@absoloodle37]

Better than Bardwell cause he hasn’t even tested it in depth. He doesn’t have the DJI system yet.

[@heartofamericafpv5584]

with digital we will no longer yell, "VIDEO, VIDEO..." we will now join the gamers in yelling, "LAG... LAG..." lol

[@ummagawdFPV]

😂

[@edstar83]

Digital FPV Master Race.

[@PixelSheep]

So true 😂👍

[@reapergrim5324]

LAG kills LOL

[@pow9606]

With digital it gets heavy. lol

[@x-forcefpv9620]

Great job Tommy! Alot better then Bardwells test!

[@emilianozapatta5978]

Tommy EXCELLENT REVIEW. REALLY EXCELLENT. I have been flying the DJI system for a week. Installed in one kwad sofar. Like you I have a BIG quiver of kwads ...my thoughts ...there is NO COMPARISON between DJI and Analog. TWO DIFFERENT ANIMALS. Get the DJI for the VISUAL EXPERIENCE. In close or long distance cruising it is brilliant. colors clarity detail ...brilliant. If you have to compare analog OR DJI you are missing the boat. If you are freaking out about $$ you are missing the boat. If you want to experience an amazing brilliant visual experience (which is not perfect ...yet) get the DJI ...

[@davidunderwood1907]

Please keep making high quality super informative videos testing our conscerns. I feel like you read us and rapidly reply. Thanks man.

[@sgabyss]

OMG! Tommy! you're amazing for taking the time to edit in the freeze frames to the DVR video... man that must have taken some serious time and effort. I really appreciate it. Thank you.

[@hateeternalmaver]

Nothing to add, all questions answered. Well done, Tommy. Thanks!

[@g-rod5199]

Awesome video and comparison!! Thank you for taking the time to show is the Actual footage of what you see with the freeze frame!

[@grumps316]

Tommy maybe one other test to consider. Although I assume most people would make use of purchasing the DJI radio, we still not have seen test with utilizing another radio such as a FRSKY RX and TX (control) in conjunction with the DJI Air unit and Goggles (just Video). Thank you and others for always testing new products and giving the community the rundown on them. Much Respect Pare!

[@sl66ggehrubt]

As most radios are 900mhz, 1.3 or 2.4, it will not interfere with 5.8, in theory. Spread spectrum should also cope better with all interference. I'm surprised DJI didn't go spread spectrum. Their lightbridge system uses spread spectrum across two bands.

[@MrTimmyGT]

What is this DGI you speak of?

[@shawnzfpv]

Haha - I do that all the time too. Call it DGI I mean.

[@djbis]

lmao, he has always said DeeGeeEye. I want to clown him for it, but at this point I just find it endearing. It's just Tommy being Tommy. lol.

[@Krumboh]

😂

[@upplsuckimcool16]

DEFINITELY do a video where you put this on your dog!!! FPV DOG!?!?!? DUDE that's the greatest idea I've heard for a while about anything!

[@RoosterGardens]

Best and most honest review I've seen yet, Thanks Tommy!

[@pkvillager]

Good tests! I'm glad I'm using Crossfire, I might lose video but I wont failsafe, but I fly solo so no worries for me.

[@jittersfpv6872]

Good job with the testing, it actually helped with some decisions we were having in the group!!

[@christophergay48]

Thanks for the price comparison. Looks like the DJI system would be better as a stand alone video system. But still more than I want to spend.

[@rickc7151]

Absolutely fantastic video and superb edit. Well done

[@ugpfpv361]

Holy cr@$, 28:25 minutes alright get my popcorn ready...lol always looking forward to your vids👍

[@PrawnPomotion]

I don’t do much flying with other people, but would alternating between RH polarized and LH polarized antennas help increase the separation between video feeds? Person 1 sets up with RH vtx&vrx, person 2 sets up with LH vtx&vrx, etc. Just thinking of ways to get both systems to work together.

[@SimRacer101]

0:30 I was totally that guy at my first FPV race. It was a disaster. 3:48 I think they mean will the DJI radio and connections work with other FCs. I can’t speak for all of the but I had full functionality with iNAV in my Wing. You DO need a Flight controller if you are going to use a the DJI radio 5:07 Yes, but it will require a flight controller like iNAV if you are using the DJI radio 13:50 It’s not latency you are experiencing, it’s packet loss. I’m not the only IT nerd here I’m sure. :-) I’m surprised people are making a big deal about this. Analog does the EXACT same thing. Most goggles don’t record the dropped frames. That is one reason on Analog I use my Skyzones. They record all frames and since I always show my FPV feed and not a GoPro it makes it MUCH easier to edit. 20:32 “Channel 8 looks good” Lol, after seeing the digital though that is hard to say. 22:50 It’s to bad the radio isn’t still using a spread spectrum even if the video feed can’t. If you are a racer you should be using a separate system for control for sure.

[@riggermortisfpv526]

Im stoked that HD FPV is coming....Im going to wait a bit longer before jumping on that bandwagon. Thanks for taking the time to do all this testing and make this video to share with all of us. Have a good one man, Im off to rip in the yard :)

[@Retset]

Living in the UK, I'd be limited to 25mw anyway. That, and the fact I already own an analogue system is pretty much the killer for me. I will be interested to see what Byte Frost actually is/does when announced.

[@grandmaster-grouch]

RetsetVX you said it mister! Hello to our fpv brothers over the pond! From California. Hip hip! Horray!✌️♥️🤙🥂

[@FastgixxerLV]

Awesome job Tommy! Looks like I can wait a little longer before getting into it.

[@carrboro_chapelhillfpv2442]

We will not allow this system on our line as, they would be the only ones to fly. If we get several DJI fpv flyers then it would be ok, I would like to see how well it does on our perma-fpv course. The price is not a problem when you break it down and you are just starting out. in fact, i think it saves so much wireing that i think its a great idea.

[@graphicdragon]

The failsafe issue with DJI radio is a good reason to use your own radio and RTX.

[@AlessandroGarabaghi]

graphicdragon it’s can be, but if someone stomps on your video while your flying out of los on analog your pretty guaranteed a crash, the Dji system will enable your fail safe setting (his looked like cut). I have mine on rescue mode and it engages that.

[@graphicdragon]

@@AlessandroGarabaghi Worse case for now though would be... for racing and "flying with friends", all have to be either digital or analog while plugged in. I think we can live with that.

[@AlessandroGarabaghi]

graphicdragon the system never claimed to work well with analog. It actually states in the manual to avoid flying with analog.

[@graphicdragon]

@@AlessandroGarabaghi Good point. Thanks.

[@peterzingler6221]

The control link is 5.8 also so I would definitely spare it

[@primitivefpv6660]

Bro that transition at 19:54 scared the shit out of me hahahaha

[@grandmaster-grouch]

PRIMITIVE FPV you will grow out of that fear bud. Once you understand the actual performance of your gear you get the freedom to fly. But until then stay low and stay close. Cheers

[@primitivefpv6660]

Haha If you trust your gear you havent been flying very long

[@StefanoCostaFly]

Hi there, did the same test last week with people powering up analog 20 cms from me and was ok and I was further away. Same channel 5.....did it with Strepto

[@kylehammond]

13:49 The delay between the two recordings is caused by an accumulation of dropped frames during recording causing desync, it is not representative of the latency while flying. In fact, your goggle recording is ahead of your air module recording...

[@BADBILLY]

Are the 2 clips (Air Unit Recording + Goggle Recording) the same exact FPS? EIther its dropping frames and not catching up, or FPS seams off?

[@jana171]

Feels like A full disclosure video you did right there Tommy, Thanks, awesome work ! For me, having bought no FPV hardware at all at this point, I think I might opt for the DJI system once I'm done crashing drones just flying LOS in my backyard :-)

[@hyperhelis4313]

Best review that ive seen! Thank you for taking the time to lay it out👊

[@BlueHornetFPV]

Great video bro! Good to see live testing with it. Can't stop drooling over the goggle feed though. 🤤🤤🤤 I'm pretty well over analogue, and seriously can't wait for hd to be dialed in. Cheers Tommy! First like! 🤫 woot woot

[@grandmaster-grouch]

My conclusion: Get dgi system. Only for solo flights. Keep my system with the homies. Cuz you know flying in a pack is more fun than flying with hd. Yeeee buddy! Great video bud. Thank you so much for the effort spent in Production. As soon as i secure my bonus. (Yes im working a dope job now unlike the last time we chopped it up) you will see me join your petrion and all that good stuff #bravo #muchisimo #encore

[@BuuFPV]

I do agree that DJI should have "Analog" as an option to switch from Digital to Analog, this will be perfect fpv goggles ever.

[@invisibleaznDJ]

I think some people are still conflating what essentially amounts to "packet loss" with "response times" . Also, on the same subject. Showing the stuttering in the goggle feed is a better representation of whatthe pillot is seeing live. Those videos on other channels, just showing one video being slower then another, doesn't really represent what you see in the goggles like Tommy has shown. The stuttering is bad. but if the video feed lagged like is being represented in some of these videos on other channels the kwad would be unflyably. As you can see Ummagwad still maintains control. There is more to this and I expect DJI will explain further

[@Sonderskov1981]

Continuing down the path of just getting into FPV with the DJI digital system, What drone should i get seeing a lot of people arn't to happy about fitting the Air unite into the frames and the fact that it runs 4s lipos, everybody probably want the best Acro / Race drone setup ?

[@mrcheng6797]

yeah, so happy for this resolute

[@samlovefpv249]

Thanks for the update. I'm still gonna get it, like you said it looks great. What frame do you have the dji air box installed in

[@BKMorpheus]

Thanks for the great video. A lot of useful information and perfect on point, very entertaining.

[@miguelolivencia4202]

Good review tommy you explain all that we need to known so thank u 🤘🏼💪🏼👹

[@HoundDogMech]

Now the way I understand this s that if your buddy's are all analog they screw up our system so you can't fly with them when racing correct? But if you are using it to fly fixed wing shooting air to air it should be great if you are alone and no analog systems turn on.

[@shahfpvjuzflylah2415]

Awesome review!! All questions answered!! Sticking with analog for now😎

[@kevinjei]

Any disadvantage if i dont use the dji controller? Planning to pair the dji goggles and air unit with my taranis 9xd se, hope someone answers my question.

[@sensemusicofficial]

you might also have tried testing different power ranges for the DJI? is it selectable ? say from 25mw 200mw 500mw 700mw? it may have made a big difference to the analogue interference..

[@slartibartphast7160]

Best thumbnail of the year

[@slingitsideways]

Drews failsafed also while flying bando. Maybe worth asking him if anyone was on analog around him at the time. Even though this video sums it up, it would rule out the possibility you have a dodgy unit.

[@elis51501]

Tommy your awesome:) I like your personality/ honesty so much, I’ve been in the fpv for 2,5 hrs and can pilot my quads adequately, i’m just saying if we lived near by I know we would be fpv friends:)

[@pcm2638]

good vid could we see install vid how this fits in differnt quad thanks again for helping us out

[@_4alex4_55]

Damm you really improved your Game!🔥

[@sjoer]

That desync in the video is not latency, it is the missed frames! Latency is the time it takes the image to go from the camera to your screen, so input > encoder > transport > decoder > output

[@bricktopfpv7573]

I had that a few weeks ago. I fly alone on a spot without any wifi interference (out of nowhere). Someone come to my place and want to do some pictures of the Spot (with a cam). I said no problem, but while i flying he pluged in a Mavic Air. He was 10-15 meters away and i got heavy white lines like you got at 19:20, but not with black pixels, just full white bars (4-5 all over the screen). I could still fly and land. I think when you fly the DJI FPV and someone plug Mavic or some cheap wifi drone (Toys or other brands), they can knock you out of the sky. Maybe you can test this next time (no need for a Video, when you can answer here it would be great). Sorry for my english. Greetings from germany, and fly safe ;-)

[@VinceIrie]

Another awesome video my dude!! 🔥🔥🔥

[@johncarold]

Hi Tommy Thanks again for the information on the DJI system. I love this picture it's the best I have seen. I don't know if I was going to get it, I thought maybe a RC Wing would be fun for this system. I just don't see putting it in all my quads but maybe I should do one. I just don't see getting version 1 let them figure out all the bugs and then purchase it. Thanks again for the information. Have a nice weekend.

[@utspish]

You can also save on a gopro with HD fpv

[@niarkozzy]

And also save some weight, and stop the massacre of the soon-to-be-extinct gopro brackets.

[@FlyingFun.]

Nice info in this video thanks. Definitely food for thought, if I was starting from scratch I would get it I think. Having already got a ton of gear on analogue it's a hard sell, BUT I don't think I will be buying new analogue goggles so if I break my goggles and need new ones I would possibly buy this and a seperate analogue Rx.

[@jvdejesus05]

Woah! This one's a long one but very informative.. Thanks for all the efforts in doing this video.. Cheers!

[@grandmaster-grouch]

Jeffrey de Jesus why do you like short videos?

[@debbie09090]

The digital interfering with the analogue looked flyable but I wonder what it would be like if there were two or more people flying on digital?

[@jdogflipper7997]

debbie09090 the DJI system is built to fly with other DJI goggles, you can fly up to 8 different DJI goggles with no interference

[@IanBeaty]

Thanks for showing us how everything interacts. Great job testing.

[@sandersassen]

Excellent content again Tommy!

[@sssssssss4258]

Please, what is the best Dron race? The journey time and distance are very large. where can I find it

[@steameier8590]

3:05 sorry, I dont understand that, how can the HDMI live Signal received without the dji googles?

[@skins6007]

Great video thank you for answering one of my main questions. (Do you need to use their radio, no 👍) Would it be possible to see another video with dji goggles and camera combined with taranis and crossfire? This should remove the “failsafe” situation if someone plugs in close to you..... or maybe it won’t??????

[@dennishassler97]

How can I use the Air Unit with a 6s system? Because the Input Voltage of the Air Unit is between 7,4 V - 17,6 V.

[@ummagawdFPV]

you'd need to use a voltage regulator to drop it down

[@FueledByTime.]

Guys, I am new to the hobby. I bought a QX7 and my very first frame with all the required components for analog fpv just before DJI released that digital fpv thing. But as I don't have the goggles yet, I am thinking of buying the ones from DJI with the camera and the air unit. But before I do that, do you know how it works to bind the Taranis to the air unit? I would love to see a tutorial because I guess it might be quite complicated for a newbie like me.

[@tiagotiagot]

Can the DJI radio be used on sims?

[@airs2k]

Thanks for all the information....I'm knew to all this.....seen someone in another channel in New Zealand running at 25MW and his range was very limited.....want to be able to fly my drone long distance. And after watching most of your video.....I will not fly this long distance.....

[@jamair31]

Wish you guys would do a hd to hd comparison on how the interfere with one another. 2 DJi’s

[@grandmaster-grouch]

JammerFPV i have a little experience on this and they work fine together. I believe dgi spent a lot of work on this.

[@David__]

Thanks for sharing Tommy!

[@RobertTheFriscoSchmid]

I am confused, isn't what you call latency the time of dropped frames between goggles and airuniy which isn't actual latency?

[@propellerkopf7155]

Good review... But where is the Fatshark byte Frost one? 😬

[@elliothuh669]

I made an fpv vid at this location about a month ago. It is a great spot. Sowers middle school.

[@bryd7203]

Awesome test. Very interesting results. Appreciate the video.

[@burgerlord1297]

great video. analog is fine for me. when i get in the zone i wont notice if its in hd or in gameboy quality all i care about is not crashing or fail safing on a roof

[@scottmarshall6766]

Nice breakdown. I'm still fighting the urge, as in the Credit Card trigger finger is still itchy.... Even with all the negatives, I am thinking it would be so nice to be able to have a "special occasion" setup. I can justify the price for that, and I fly alone, or we take turns when I fly with friends, so the interference isn't a big problem. The other issues I could deal with as well, no matter what setup you fly, you have to know it's character and fly it accordingly. The big stumbling block for me is "is this going to ruin all my other quads??" I'm totally NOT joking here, if this ruins the experience for me with the rest of my collection (12-20 quads depending on maintenance situation), I'm going to be disappointed. That being said, I know I gotta try it. I'm going to wait until Fatshark breaks theirs out if I can, but I really think I gotta get one nice flying HD setup and see where it takes me. Thanks for answering the questions (Diopter was a big deal for me) and digging into a lot of the practical considerations for us hobby fliers. I'd expect there are a lot of us who would like a "Saturday afternoon cruisin" setup for fun flying, and aren't looking for a "get the footage regardless of broken parts count" hardcore setup. Looking forward to the next installment of your experience with the system.

[@HellaCopter]

It’s like clockwork dude that’s soo crazy those failsafes are no bueno! idk man maybe my crappy analog is still the way to go even though it’s immersive I’m not sold Bardwell said never look at these goggles in person because it will sway you I’m just gonna wait a year and see how this all plays out

[@senorflo4178]

Need an all star race with the dji fpv system. You all have one x get th crew together

[@grandmaster-grouch]

Senor Flo sounds easy enough? Lol wrong! But i agree

[@GLXYFPV]

nice vid mate and great detail!!!

[@PIDtoolbox]

Great review of some important considerations.

[@Hellmuthsilva]

Very nice video what frame did you use to install air unit? Do you believe that DJI will come out with new goggles that are smaller?

[@fueledfuryfpv]

Hi Tommy, great video on the dji system. If you were using your own radio and receiver with the dji hd vtx and not with the dji radio and receiver would it still be possible to fly hd and not failsafe or lose video if the analog and hd channels were at opposite ends? (Even if you plug the analog qwad in next to you.)

[@crackedink]

great breakdown mate

[@PowerScissor]

With HD, you should just be able to point the camera at your monitor and fly your SIM. Just 25ms more lag.

[@blackrazid-fpv2922]

Tommy/ummagawd i would love to see how and if the failsafe happens if you redo this test, but dont use their controll link (u use ur crossfire/frsky/whatever non dji) , maybe the fpv/controll system just shutsdown due to the controll system got knocked out, I am just curious :)

[@Guilefpv]

Another reason why you should stick to 900mhz or 2.4ghz control link, so you don't get instant FS. If your friend plugs in and you start getting freeze frame or high latency, quickly change your goggle channels to a clean band and it will change the vtx channel simultaneously.

[@toddspeck9415]

Excellent testing!

[@ARI3S]

Great video Tommy. Question - why does the 915mhz (I’m guessing CRSF) control link on the “non” DJI quad just failsafe the DJI 5.725-5.850GHz control link system? 🤔

[@killadrones9432]

its because everything is on 5.8 control and video

[@ARI3S]

Killa Drones they are 2 very different frequency spectrums. This should definitely not be happening. Power output on the CRSF has to be noted in this video for “data” purposes. If it is set to full power and not dynamic then that would “maybe” have an impact. And that depends on the TX module that Tommy was using whether it be the micro (full 250mw) or full sized (1W). It is definitely something worth exploring 👍

[@pesm99]

It’s the 5.8 vtx and not the 915Mhz tx of the non-DJI quad that is killing the DJI control link.

[@ARI3S]

I did think about that, but dismissed it because of the power outputs. But I’ll ask anyway, why is 600mw killing 700mw?

[@volkmarschulz7317]

Hi nice video. I'll stick with crossfire for control. BTW: Are you working on a new HD frame for the dji fpv air unit?

[@truefpvblood158]

Super informative .... Thank you!

[@Leemaw]

Superb!...TY for that

[@AhmadFPV]

hello, thanks for the review, it was really in details. if you compare crossfire vs dji controller which one you pick? I don't wanna fly far away I want to fly behind trees and buildings. keep in mind Dji is limited to video signal range! what do you think?

[@ummagawdFPV]

Get crossfire

[@Bobby_Strange]

How well does DJI work with DJI? 8 in the air? 4?

[@grandmaster-grouch]

Dustin M yes!

[@JeromeDemers]

Thanks for great test, please note that this is 600-700mW transmission, that it a lot of power!! You could do the same test with 25mW. Also not everyone fly at 800mW.

[@emilianozapatta5978]

RE Occusinc DJI System (Red and Black) DID have analog and digital. BUT it is not compatible with this ...

[@protonus]

I use the Goggles RE (what you're referring to as red/black) as my primary FPV goggles, and I love them. For their digital link to Occusync Air though, they use a mix of 2.4 GHz and 5.8 GHz, it's the same system in the Phantom 4 etc. The new FPV Air is only 5.8 GHz which is why it's not compatible. It's a shame though, if it was compatible I'd have bought several FPV Air units already.

[@bernhard8540]

the picture is great but I'm sticking with analog at least until they get digital locked down and perfected alot more than it is right now thats for sure I move pretty quick as well with my freestyle and there is still an issue with the latency to some extent.

[@kVarfpv]

Hi Tommy~ think you'll be doing a review of the Fatshark Bytefrost anytime soon? I'm told it's using basically an uncompressed Analogue HD signal so I'm wondering if someone with influence can get a group to test out the interference like how Rotor Riot just did with the DJI unit...so far the byte frost looks good but I have a feeling it's just taking up too much bandwidth...

[@hoverbotfpv1425]

When the clips are way off could it be the air unit writing the hd to disk causing delay? Not the sd card but the DJI DSP recording? As long as it saves file delay then is not as much a factor as long as goggles are low latency. Our brains adapt like with static we never see until we playback or goggle recordings.