We all suspected / knew it was Caddx who were going to be taking over the manufacture of the DJI Air Unit, and they have just announced that product which is called the Caddx Air Unit (Micro Version).

The Caddx Air Unit itself looks to be identical and the same size as the original DJI Air Unit, but the camera is clearly smaller which is probably what the "Micro Version" label applies to. There are no details on whether the camera is a 720p or 1080p camera, but to be on par with the original DJI Camera it needs to be 1080p. There is speculation that this could just be the Caddx Nebula Pro (720p) camera in a different body, but there are no further details yet so we can only wait to find out.

Great... the only aspect they should have improved is the same as the previous one! 

Let's see the spec sheet... i wanna be surprised! 

The Caddx Air Unit will be the exact same hardware as the original DJI Air Unit, just manufactured by Caddx instead of DJI. It will also be running the same firmware as the DJI Air Unit was. So we will still get the "Slow SD Card" firmware bug in the new Caddx Air Unit, unless DJI bother to pull their finger out and actually do something about that, but it's not looking hopeful right now.

DJI were going to discontinue the Air Unit until the 11th hour when they then decided to hand over licensing rights to Caddx to just continue manufacturing the same original unit after there was an uproar about it being discontinued. There has been no time, money or inclination by DJI to make any improvements to the Ait Unit itself. Caddx have simply just added their own camera to it. Let's hope that camera isn't inferior to the original DJI Camera. The price of the Caddx manufactured Air Unit has increased by $10 to $189.99 . Hopefully that price increase doesn't include a worse camera.

Yeah that whole "Slow SD Card" error is really killing me lately. Can't seem to make it stop, even after buying more new cards of the recommended ilk. Drat! Was chasing one of the new E-flite Dracos yesterday and got pretty close to it a couple times (for me anyway) but the clip is corrupted. Even though I manually started and stopped the record and did not see the error whilst flying.

At least there is a sign of relief for the folks who are already on DJI and were worried about continuity of the FPV system.

In its current form the DJI system is still light years ahead of others in this space.

Neither of the following reviewers have the new Caddx Air Unit, but they share their findings and thoughts. According to Gal Kremer's research, the new Caddx "Micro" Camera has the  same specs as the original DJI Camera, but in a standard form factor for quad frames compared to the DJI Camera (19mm wide instead of 20mm). Whether the quality will be as good as the DJI Camera is still yet to be seen.

Available for pre-order now with an estimated shipping date of 10th May (dont take my word for this):  

https://caddxfpv.com/collections/caddxfp...-pre-order

(27-Apr-2021, 10:02 PM)Bajora Wrote: Yeah that whole "Slow SD Card" error is really killing me lately. Can't seem to make it stop, even after buying more new cards of the recommended ilk. Drat! Was chasing one of the new E-flite Dracos yesterday and got pretty close to it a couple times (for me anyway) but the clip is corrupted. Even though I manually started and stopped the record and did not see the error whilst flying.

Not sure if anyone has tried this- but if you are on a MacBook try mounting you micro sd to it and then go to disc utility to do an "erase" there. While in the erase section go to security and do most secure. I have had your issue with CFFast cards and high speed recording on Canon 1dx's. It fixes it every time on those cards.

(08-May-2021, 02:19 PM)JPOV Wrote: Not sure if anyone has tried this- but if you are on a MacBook try mounting you micro sd to it and then go to disc utility to do an "erase" there. While in the erase section go to security and do most secure. I have had your issue with CFFast cards and high speed recording on Canon 1dx's. It fixes it every time on those cards.

The issue on the Air Units is nothing to do with the SD card or how it is formatted. People are using high quality high speed cards and they still get the Slow SD Card issues, and/or the recording on the Air Unit just randomly stops part way through a flight. This issues doesn't happen with the recording to the goggles. It is just with the onboard Air Unit recording.

It's a firmware bug in the Air Unit that DJI need to fix which wasn't present until firmware version v01.00.05.00 got released. The problem then persisted in firmware version v01.00.06.00 (i.e. not fixed) and that was the last firmware DJI released for the DJI FPV System (almost a year ago), so it remains an issue and probably will do forever now because DJI seem to have no interest in continuing to further develop or address any known issues the standalone FPV system. Thus the reason that DJI have now handed over manufacture and support to Caddx, but Caddx have no ability to change the hardware or firmware. All they can actually do is to manufacture units to the existing design specification and sell them.

You can roll back to firmware version v01.00.04.00 and the Slow SD Card problem disappears, but you then lose any features and fixes that were added after that release such as custom Betaflight OSD and a number of important fixes such as a screen freeze issue which you certainly don't want happening. So we are unfortunately stuck with the random / intermittent Slow SD Card issue and it will be pot luck if you get usable flight footage from the onboard Air Unit recording.

Ian posted some photos of the new "Caddx" Air Unit over on RCG (HERE and HERE). It turns out that it's exactly the same as the original DJI Air Unit and still even has the DJI branding on it. It seems that the MMCX connectors are still recessed like on the original so no changes there which means the rendered image just made it look that way.

The only Caddx branded item is the camera.

AS far as the "slow SD card" error thing, I tired disabling the "Auto Record with Armed" feature and have been manually hitting the start/stop record button on my goggles. SO far, in a couple dozen flights of doing it that way, the error has only occurred once.

Here's a side-by-side comparison of the DJI vs "Caddx" Air Unit, and side-by-side footage of the original DJI Camera vs the new Caddx Camera...

Dunno if it was mentioned in any of the videos linked above, but the "new" camera is actually Nebula Pro on a slightly smaller PCB. Original just screws onto the back of a plastic case so is 19x19mm board, and new one fits inside the alu holder, but all the components are identical and layout is almost the same.

Here's a pic comparing "Caddx Air Unit Micro" cam, Nebula Pro and the og DJI cam:

So all of this still makes sense with what we were seeing when DJI announced these changes.

Till date DJI do have an AirUnit listed for sale on their website but no camera: https://store.dji.com/category/dji-fpv?f...u_products

So all Caddx is doing is adding their re-packaged/re-cased Nebula Pro camera to the bundle along with the original AU from DJI.

Have we figured out if the Nebula Pro outputs 1080p for AU recording, or if it's 720p upscaled?