DJI Open Letter – DJI Repair This – sUAS Information

Persons are dropping their drones over this problem so at this time I’m publishing this open letter to DJI on all of the contact e-mail addresses, social account I’ve together with their public relations concerning the DJI O3 points with DJI Goggles 3.

Pricey DJI, 

I’m writing to spotlight and share info on what I consider is a crucial security problem with the DJI O3 Digital FPV Air Unit when utilized in mixture with the brand new DJI Goggles 3. 

Myself and members of the fpv group have found a difficulty the place, within the occasion of sign loss on O3 when used with Goggles 3 the FPV dwell feed won’t re-establish the hyperlink till the O3 air unit has acquired a disarm command by way of MSP show port. 

The Problem In Element 

Regular DJI O2,O3 and O4 on DJI drones wi-fi system conduct is 

Within the occasion of dropping video sign you’ll be able to reconnect once more as soon as your drone or air unit comes again into vary of your goggles. 

For instance: You might fly behind an impediment and free sign, nonetheless as soon as handed the impediment O3 would reconnect and you’ll view your dwell feed once more. That is the case on DJI O3 with the DJI V2 Goggles, Goggles 2 and Goggles Integra in addition to DJI’s shopper and enterprise drones. 

Nonetheless it has been found that with DJI O3 together with DJI Goggles 3 this isn’t the case. On the Goggles 3 within the occasion of sign loss with the O3 air unit whatever the trigger the O3 air unit won’t reconnect to the DJI Goggles 3 except you disarm the air unit by way of MSP displayport command. 

This implies even a momentary lack of sign will imply you’ll be able to not fly and the one method to get better the fpv dwell view hyperlink is to disarm your drone mid-flight. That is clearly not secure and the fact is the one method to reestablish the hyperlink is to try to land and disarm the O3 air unit.

This problem occurs when the O3 air unit is used as per the producer’s directions receiving a legitimate arming command by way of MSP DisplayPort by way of Betaflight. 

I’ve carried out intensive testing on this problem and I can verify the next 

● This bug is just taking place with O3 air models together with DJI Goggles 3, DJ O3 air models used with Goggles 2,Goggles Integra and DJI FPV Goggles V2 are usually not affected. ● I’ve confirmed this conduct on each Goggles 3 firmware variations that help DJI O3, v01.00.0400 and v01.00.0300. 

● I’ve confirmed this impacts each CE and FCC customers the identical. 

● I’ve confirmed this occurred in each Auto and Handbook Channel Modes and all bandwidth modes. 

● I’ve confirmed this nonetheless occurs regardless if low decrease mode is on or off, if recording or not recording. 

An vital be aware is that when the O3 Air Unit just isn’t armed by way of MSP the connection will reconnect because it ought to always. With out MSP arming whatever the low energy mode state i.e. low energy mode on or off it really works as anticipated, nonetheless this isn’t regular working situations. DJI O3 solely gives full RF energy when used with a legitimate arming command. 

My testing has proven this problem could be very repeatable throughout a number of air models and I can replicate it 100% of the time. 

This problem is inflicting customers of O3 to crash and even in a lot of circumstances lose their drones because of this problem and it’s my opinion that this represents a security problem because the DJI O3 hyperlink doesn’t carry out reliably in regular use and desires addressing urgently.

Additional to this particular problem, for the reason that launch of Goggles 3 I’ve seen intensive studies of individuals additionally experiencing random lack of video hyperlink, in lots of circumstances fully out of the blue even at very brief vary, this problem might or will not be associated to the problem above however there does seem like a correlation between the 2. 

At this time it seems to be the case that the DJI O3 Air Unit when used with DJI Goggles 3 just isn’t offering the standard excessive degree of reliability we’re used to from DJI O3 because it does with the opposite DJI Goggles. 

I’ve offered this info within the spirit company and in hopes to assist elevate consciousness that then results in a decision as it is a very severe problem for O3 customers on DJI Goggles 3. 

Different Suggestions 

Lastly, whereas these are usually not associated to the above problem, I want to take this chance to lift consciousness of some performance that may very well be improved in DJI O3 that might drastically profit the group and enhance DJI’s use in these eventualities.. 

DJI O3 Low Energy Mode 

DJI O3 Low Energy Mode doesn’t work in the identical method because the Unique DJI FPV Air Unit and the Air Unit Lite ie Caddx Vista and Runcam Hyperlink. WIth the sooner air models you would fly with no flight controller offering an arming command and you would get full RF energy by turning off Low Energy Mode. 

Intensive testing on DJI O3 has discovered the low energy mode possibility doesn’t work the identical, In FCC areas turning off low energy mode doesn’t present full RF energy and the one method to get

full RF energy from O3 is with a flight controller offering a legitimate MSP displayport arming command. 

We’d ask if this conduct is modified to permit full RF energy always when low energy mode is turned off. 

DJI O3 Full Customized OSD. 

DJI O3 helps MSP DisplayPort nonetheless has a restricted font set obtainable, this works with Betaflight nonetheless Inav and Ardupilot have a extra advanced set of wants for icons and fonts because of the wider performance obtainable. This makes utilizing O3 with Inav and others a massively extra restricted expertise and for a lot of it is a barrier from utilizing DJI O3 with these methods. 

It could be very helpful to the group if DJI launched the power to make use of customized font packs like different digital FPV methods permit similar to HDZero and Avatar HD so customers can get the complete expertise with DJI O3. 

DJI O3 Energy Output Settings 

DJI O3 doesn’t have the choice for the person to have the ability to set their very own energy degree to cut back the RF energy output, this was obtainable on the unique FPV system. 

There are events the place customers might want to restrict the RF energy output and we might admire an choice to manually set the utmost RF energy.

DJI O3 Sign Loss Sluggish Restoration 

Whereas this problem is much like the principle problem above, it isn’t immediately associated. On all goggles used with DJI O3 air models it has been discovered it’s a lot slower to re-establish the hyperlink in comparison with the unique FPV system in sign loss. The unique DJI FPV Air Unit and Air Unit Lite would reconnect immediately as quickly because the sign was robust sufficient. O3 appears to lag considerably with lengthy vary pilots discovering it taking minutes generally. 

Request is to enhance and optimize O3 hyperlink re connection when sign is sweet sufficient. 

Lastly I want to thanks for taking this suggestions onboard. 

I’m more than pleased to offer any help or present additional technical element the place wanted. 

Kindest Regards 

Ian Lewis 

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