Thanks very much for taking the time to re-do this video, Ian. And for putting up with all the noise (pun intended 😜) around the first video. This was great and very informative. Massively appreciate the effort and hope this helps people understand the differences between how the two systems handle their RF and what people should do to enable as smooth an experience as possible when flying with each other using mixed systems.

Great Job 👍 You are wrong at 24:35 , this noise is coming from DJI goggles not your WiFi 99% of the time I'm flying on R3 and I get strong interference from DJI go back to 23:37 and you can see the 4 spikes from goggles on R3 frequency and you can see this too at 26:40 R3 and R1 THIS is very annoying for analog

I will second that!!

I'll 3rd that lol Hello from Canada 🇨🇦 P.S. I love all you guys. Thank you

Yea I have redone the races at a little more distance. The original traces were basically on top of each other.

Thank you!

What was the resolution bandwidth used for scan?

Yes.

The FPV has no gps though. It won’t have coordinates. It’s certainly odd though.

@@MadRC Right, okay. And it is a passive system, getting the exact telemetry that the aircraft is transmitting. I still believe the burst of power could be used in such a way. Aeroscope is just one of many tracking systems in operation, not to mention the so called mitigation side of things.

I did reply, I’ll post it here shortly for you.

That’s not actually the WiFi in this it’s a constant spread of local, short is being in a faraday cage turning it’s off totally is not possible.

@@MadRC I'm not sure if there's a mis type or I just don't understand, what is constant spread of local? Thanks one more time for these kinds of videos, they are the exact same thing I'd be checking out with a spectrum analyzer like that. And taking the time to check for things like high power boot ups under literally every possible configuration is just icing on the cake. Short of having a DJI tech explain why and how they do these things this is best info possible.

​@@MadRC You said in the video that it's just your own wifi router scanning across the band...

Not really with DJI. What’s got the least chance of WiFi on really more than anything.

FCC 700mw is on the Vista and Airunit. 1200mw is on goggle only.

@@MadRC just found your video on this topic that explains it really well. Thank you for being such a reliable source of information. I'm in the states, hence my confusion about the number of steps required.

Ohh - and by the way: Thank you so much for all the work you put in to provide us with such valuable information!

No it stays in the same place even when you move into the top of it what I have see.

It’s a number of WiFi routers including others in other property near me and wireless CCTV systems. It causes no real affect on the video or the tests ffs.

@@MadRC Then it's other people's wifi not your own wifi, which is what you implied with "my local wifi". And it certainly has a very real effect one the video: We're looking for interference such as random spikes created by either fpv system. So constantly seeing random spikes turn up and just being told "yeah, just trust me it doesn't matter" is a bit problematic. Sometimes it's difficult to get a test in a clean area. So note that you did the best you could and leave it there. Don't pretend like it has no effect on the video. Also, no need to get upset 🙄 Everyone needs to know how to handle constructive criticism. Deleting and re-making a video every time anyone gives you any is not a good way to handle it.

The axis values here are not important. The scale has been chosen to show the carrier difference best Brit they bare no importance to the data here. The frequency is channel 8 on both again not relevant to what’s being shown.

@@MadRC anybody with any insight into these programs would like to know the values that are present on the screen and to sense the dBm jumps and simply get an overview of the margins / values being displayed. it is such a little thing to change your scaling so your viewers can read the values that the program says and make an overview themself. DJI's digital protocol ain't noisy, its actually a quite clean digital protocol, with a way more square digital floor then HDzero's protocol, that almost looks like a mixmatch I don't have any air units, I can test and also been analyzing the RF power values on my VTXs and TXs..and even on analog, it's also extremely clear if you put it on an RF power meter with adequate refresh rate, so you can sense spikes.. you will see a significant spike at startup.. as far as I can tell quite normal, at least on the analog VTXs i have tested with RF power meter on my laptop. IF your spectrum explorer /analyzer is somewhat accurate then plug it in directly and check the wattage on the DJI and HDZero..(though use attenuators if its overdo your device-dBm rating) but you sadly not sure how your connected and if you just winding it, or your have a direct SMA line to the VTXs and remove all the variable that can play a factor.. antenna. distance, connections, noise, angle etc etc.. as there is a massive difference between HDzero's 25mW peakfloor, and the DJIs 25mW floor.. and if they are directly connected then you can obviously conclude they are not both 25mW.. the HDZero so-called stabile 25mW floor is way way higher 9:40 then DJIs so-called 25mW floor 10:20.. so if you made an arrangement where its apples to apples.. it goes without saying they are NOT AT EQUAL 25mW values..(its like more then 2´two full segment number jumps on your left dBm axis)

@@MadRC The horizontal axis values at any rate are 100% important. It would be nice to actually be able to *read* what frequencies the various spikes are on, rather than having to wait and hope you read it out for us at some point. Also, this thing of repeatedly taking the video down and reuploading a new version is rubbish. If one segment's graphs are being misinterpreted, just upload a new video with a redo of that segment, and put a pinned comment in the original video linking to it 🙄 No-one likes having information just randomly disappear.