OcuSync 2.0, O3 & O3+ clarifications?
- Thread starter Jonathan Burnett
- Start date
Suren
Well-Known Member
JohnC
Well-Known Member
After watching some comparisons, I don't think the main reason to get the RC Pro is the difference in transmission. Currently, I think the difference, if any, is negligible. I'm not sure if that will, or can, change with future firmware upgrades.
RocketBrew
Well-Known Member
For me, the primary reason for using the RC Pro is that it is more functional and feels better in my hands when flying, compared to the toy-like standard controller.
I have been using iPad Minis (4 & 5) with my Phantoms for years, and do not like the small screen. I may have to rig up a holder to mount a screen from the HDMI output (which defeats the all-in-one concept).
It is very disappointing not to have a decent controller to use with my iPad Mini 5...
I have been using iPad Minis (4 & 5) with my Phantoms for years, and do not like the small screen. I may have to rig up a holder to mount a screen from the HDMI output (which defeats the all-in-one concept).
It is very disappointing not to have a decent controller to use with my iPad Mini 5...
The added functionality is huge.
The standard controller is no where near the level needed for a prosumer drone like this. It's a HUGE issue, imo.
They really should come out with a mid level controller that has extra buttons, wheels, a customizable d-pad like switch, and a half press button for photos. I really don't know what they were thinking other than $$$.
globetrotterdrone
Well-Known Member
Still this bandwith issue is somehow not explained (as also mentioned in the comments) and therefore think it's not the true reason:
Transmission quality
And why the heck is the RC Pro not compatible with the Air 2S?
That doesn't make sense at all, but if DJI just willingly intends so.
Transmission quality
- M2P: 1080p/30 12 MBit/s with SC
- Air 2S: 1080p/30 12 MBit/s with SC (and addtional 10 ms latency)
- M3: 1080p/60 low latency
And why the heck is the RC Pro not compatible with the Air 2S?
That doesn't make sense at all, but if DJI just willingly intends so.
I would argue longer range means stronger penetration for trees at least. But someone smarter here with that stuff could correct me.
JohnC
Well-Known Member
Its all to do with progress! This guy explains it well, I believe he designs RF systems or repairs them, either way he has but this together to explain.
globetrotterdrone
Well-Known Member
I watched that video of course before and especially asked the question to him in the comments with no reply yet.
Fact is, what he also explained in detail: the SC has the capability to run Air 2S but says, it's not working well (tried it with a friend's drone, never had a problem). It's SDR and while DJI implements P1 and S1 here and there, the only reason for the SC not working with the M3 may be indeed the bandwith needed for 1080p/60 low latency. That however could be solved with a reduced transmission of 1080p/30 12 MBit/s I guess, like the predecessors use. You remember, it's all SDR.
So the question is, why he suspects a bandwith limit with the Air 2S already (using the same transmitting quality) in special. Is it really based on the chips, is it sloppy software development ... But probably only DJI really knows ... or maybe not and they are just as confused as consumers with their back and forth in compatibility.
JohnC
Well-Known Member
The whole Ocusync thing is very confusing IMO as they refer to the video transmission & the control/telemetry as Occusync ‘the overall system’ but they implement different versions of it at the same time! O2 for telemetry and control and O3+ for the video return.I watched that video of course before and especially asked the question to him in the comments with no reply yet.
Fact is, what he also explained in detail: the SC has the capability to run Air 2S but says, it's not working well (tried it with a friend's drone, never had a problem). It's SDR and while DJI implements P1 and S1 here and there, the only reason for the SC not working with the M3 may be indeed the bandwith needed for 1080p/60 low latency. That however could be solved with a reduced transmission of 1080p/30 12 MBit/s I guess, like the predecessors use. You remember, it's all SDR.
So the question is, why he suspects a bandwith limit with the Air 2S already (using the same transmitting quality) in special. Is it really based on the chips, is it sloppy software development ... But probably only DJI really knows ... or maybe not and they are just as confused as consumers with their back and forth in compatibility.
I did a bit of testing with a RC213 from my Mini 2, it changes firmware when changing from Mini 2 to M3 & again when switching back, so in theory, there should be no reason why a similar firmware change routine could be added to the RCP to allow other aircraft support. It would be very handy if the RCP would support legacy drones, but if a firmware change is required each time it won’t be very practical.
I also suspect they have their hands full getting the January release ready while at the same time fixing reported bugs, so its probably not high on the ‘to do’ list.
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A bit off topic, but I've noticed that between O2 and O3+, video has been given priority over control. At least button control/photo control/etc.
When flying O2, everything goes at once. But with O3+, it seems like they're cutting off certain features and dedicating that bandwidth to video. At least that's the impression I get.
Also, do we know if the video feed is at a different frame rate? It seems much smoother and more fluid than it does with O2 and the M2P. Some of that can certainly be attributed to the increased speed of the drone, but that's certainly not the whole story.
Interesting that they're using FPV as the test bed for their transmission technology.
When flying O2, everything goes at once. But with O3+, it seems like they're cutting off certain features and dedicating that bandwidth to video. At least that's the impression I get.
Also, do we know if the video feed is at a different frame rate? It seems much smoother and more fluid than it does with O2 and the M2P. Some of that can certainly be attributed to the increased speed of the drone, but that's certainly not the whole story.
Interesting that they're using FPV as the test bed for their transmission technology.
globetrotterdrone
Well-Known Member
Can you clarify the "flying backwards after a certain point" part? I'm intrigued.
dr6583
Member
With the latest firmwares, the RC-N1 will now receive a little "update" when linking it to a drone. It tells the RC-N1 which protocol to use, O2, O3, or O3+, depending on the aircraft. That hasn't always been the case, until recently. I flew my A2S with my RC-N1 today for the 1st time since it is O3 capable, and I got considerably more distance than before flying in the same area. A mile and a half, with plenty of interference around...
Attachments
You'll get even more with the RC-Pro, because it offers 4x the power output over the RC-N1.
Works fine with mine, but mine was purchased for the M3, rather than bought in the discounted A2S Combo bundle for only $550, since they didn't include the RC-N1 controller. Was yours part of that bundle? It's likely a FW update miscue. The hardware is identical. It just needed a FW update to make it dual compatible, and then it runs a small FW patch each time you change from the A2S to the M3 and back again. The other bug was changing the drone overwrites the settings for the C1 and C2 buttons back to their defaults.
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