DJI Open Letter – DJI Repair This – sUAS Information

Individuals are shedding their drones over this subject so at present 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 relating to the DJI O3 points with DJI Goggles 3.

Pricey DJI, 

I’m writing to spotlight and share data on what I imagine is a essential security subject 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 problem the place, within the occasion of sign loss on O3 when used with Goggles 3 the FPV dwell feed is not going to re-establish the hyperlink till the O3 air unit has acquired a disarm command through MSP show port. 

The Subject In Element 

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

Within the occasion of shedding video sign you may 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 client 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 is not going to reconnect to the DJI Goggles 3 except you disarm the air unit through MSP displayport command. 

This implies even a momentary lack of sign will imply you may now not fly and the one strategy 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 strategy to reestablish the hyperlink is to try to land and disarm the O3 air unit.

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

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

● This bug is simply occurring with O3 air models together with DJI Goggles 3, DJ O3 air models used with Goggles 2,Goggles Integra and DJI FPV Goggles V2 aren’t 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 Guide 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 necessary word is that when the O3 Air Unit isn’t armed through 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 supplies full RF energy when used with a legitimate arming command. 

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

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

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

As we speak it seems to be the case that the DJI O3 Air Unit when used with DJI Goggles 3 isn’t offering the same old excessive degree of reliability we’re used to from DJI O3 because it does with the opposite DJI Goggles. 

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

Different Suggestions 

Lastly, whereas these aren’t associated to the above subject, I wish to take this chance to lift consciousness of some performance that may very well be improved in DJI O3 that will enormously profit the group and enhance DJI’s use in these situations.. 

DJI O3 Low Energy Mode 

DJI O3 Low Energy Mode doesn’t work in the identical method because the Authentic DJI FPV Air Unit and the Air Unit Lite ie Caddx Vista and Runcam Hyperlink. WIth the sooner air models you might fly with out a flight controller offering an arming command and you might get full RF energy by turning off Low Energy Mode. 

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

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

We might 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 accessible, this works with Betaflight nonetheless Inav and Ardupilot have a extra complicated set of wants for icons and fonts as a result of wider performance accessible. This makes utilizing O3 with Inav and others a massively extra restricted expertise and for a lot of this can be a barrier from utilizing DJI O3 with these programs. 

It could be very useful to the group if DJI launched the power to make use of customized font packs like different digital FPV programs enable akin to HDZero and Avatar HD so customers can get the total 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 accessible on the unique FPV system. 

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

DJI O3 Sign Loss Sluggish Restoration 

Whereas this subject is just like the primary subject above, it’s not instantly 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 typically. 

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

Lastly I wish to thanks for taking this suggestions onboard. 

I’m very happy to offer any help or present additional technical element the place wanted. 

Kindest Regards 

Ian Lewis 

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