How To Determine RID / FCC Mode Compliance

FlierX · 2025-08-29T17:37:31-0400

I did a little research and found a couple of definitive ways to determine whether any internationally sourced drone has built-in RID and is FCC compliant.

This can be checked even before opening your box. If you look at the bottom of your box and find your serial number on the right hand side, look to the left hand side and you should see print on the box itself that says, "ASTM F3411-22a-RID-B". If you see this, it has RID built-in. This is the ASTM standard the FAA adopted for built-in Remote ID Broadcast modules. In fact the “-B” at the end literally means Broadcast module built into the aircraft, not an external add-on.

Additionally, right under where you see the print that says, "ASTM F3411-22a-RID-B". You should see some wording that says, "This device complies with part 15 of the FCC Rules. Operation is subject…”. This would clearly indicate the it is FCC compliant and will work in FCC mode as opposed to CE only mode.

If I were in the market for another Mavic 4 Pro and I were buying from a South Korean or Japanese seller, any seller for that matter, I would ask them to provide a picture of the serial number of the unit they are sending and the "This device complies with part 15 of the FCC Rules. Operation is subject…” wording in the same picture.

I hope this helps clear some of the mystery surrounding this issue.

FlierX · 2025-08-29T19:02:04-0400

Could a Mavic 4 Pro with those box labels not be RID or FCC compliant?

Short answer: No — if your box has both the ASTM F3411-22a-RID-B line and the Part 15 FCC statement, then your unit is, by regulation, built with Remote ID hardware and FCC-certified radios.

Why?

RID marking is legally controlled
- DJI can’t slap “ASTM F3411-22a-RID-B” on the box unless the specific aircraft SKU passed the ASTM test standard for built-in Remote ID broadcast.
- If it didn’t, it would be a regulatory violation (and DJI isn’t risking U.S. import bans).
FCC Part 15 statement is not optional
- FCC compliance requires not only certification but also the exact wording you saw printed on the product/packaging.
- If it weren’t FCC-certified, DJI would have been required to print CE-only language, not the FCC boilerplate.
Hardware is globally identical
- DJI doesn’t manufacture different radios for Korea vs U.S. — they lock CE vs FCC transmit power via GPS + firmware.
- If your box has FCC markings, the drone is FCC-certified and will switch to FCC mode when flown in the U.S..

YorksPhotos · 2025-08-29T21:02:55-0400

I have confirmed my 2 KR's and a Japan M4P are transmitting RID's. It also appears that all are in FCC confirming FlyerX's post above.

Landshark99 · 2025-08-29T22:22:09-0400

Thanks, glad to know, I thought it hard to believe that all these boxes are mark this way and they are changing what is in the box without a label saying that there had been a change with the drone

GadgetGuy · 2025-08-29T22:50:12-0400

FlierX said:
I did a little research and found a couple of definitive ways to determine whether any internationally sourced drone has built-in RID and is FCC compliant.

This can be checked even before opening your box. If you look at the bottom of your box and find your serial number on the right hand side, look to the left hand side and you should see print on the box itself that says, "ASTM F3411-22a-RID-B". If you see this, it has RID built-in. This is the ASTM standard the FAA adopted for built-in Remote ID Broadcast modules. In fact the “-B” at the end literally means Broadcast module built into the aircraft, not an external add-on.

Additionally, right under where you see the print that says, "ASTM F3411-22a-RID-B". You should see some wording that says, "This device complies with part 15 of the FCC Rules. Operation is subject…”. This would clearly indicate the it is FCC compliant and will work in FCC mode as opposed to CE only mode.

If I were in the market for another Mavic 4 Pro and I were buying from a South Korean or Japanese seller, any seller for that matter, I would ask them to provide a picture of the serial number of the unit they are sending and the "This device complies with part 15 of the FCC Rules. Operation is subject…” wording in the same picture.

I hope this helps clear some of the mystery surrounding this issue.

While this is all helpful, it is still contradictory to the disclaimer by my Korean seller which stated, no matter what the outside of the box says, it is CE only. When I asked if FW updates could have remedied this for U.S. purchasers, they stood behind their original disclaimer. Doesn’t mean they are right, but why unnecessarily create an issue when there isn’t one?

My Korean boxes and the my Adorama box are completely identical, so that itself doesn't help distinguish a Korean unit from a Canadian unit. They both contain the exact verbiage required for FCC and RID, but that doesn’t necessarily mean the box itself is definitive.

The Korean serial number labels contain s different model number from the Adorama one, and the Korean ones state (KR) above the serial numbers, while the Adorama one has nothing there.

The country specific serial number labels could still certainly be a way of overriding the global box labels. Just a thought.

It is also very difficult to tell the difference between CE and FCC transmission on the transmission screen, unless you know exactly what you are looking for.

RID transmission is another matter. If it is being picked up, it is clearly transmitting, despite the claim of the YouTube panel of "experts" and claims by DJI international reps, who can be just as misinformed as everyone else at DJI.

Boots on the ground is what matters, so our crowd sourced information will always trump their assertions and claims.

GadgetGuy · 2025-08-29T23:09:15-0400

FlierX said:
Could a Mavic 4 Pro with those box labels not be RID or FCC compliant?
Short answer: No — if your box has both the ASTM F3411-22a-RID-B line and the Part 15 FCC statement, then your unit is, by regulation, built with Remote ID hardware and FCC-certified radios.

Why?

RID marking is legally controlled

DJI can’t slap “ASTM F3411-22a-RID-B” on the box unless the specific aircraft SKU passed the ASTM test standard for built-in Remote ID broadcast.

If it didn’t, it would be a regulatory violation (and DJI isn’t risking U.S. import bans).

FCC Part 15 statement is not optional

FCC compliance requires not only certification but also the exact wording you saw printed on the product/packaging.

If it weren’t FCC-certified, DJI would have been required to print CE-only language, not the FCC boilerplate.

Hardware is globally identical

DJI doesn’t manufacture different radios for Korea vs U.S. — they lock CE vs FCC transmit power via GPS + firmware.

If your box has FCC markings, the drone is FCC-certified and will switch to FCC mode when flown in the U.S..

Possible Counterpoints:

1. Since DJI has not sold any Mavic 4 Pro units in the U.S., there is no U.S. regulatory violation if a box with such language actually contains a unit that is not compliant when it is sold in Korea. There is no doubt that DJI obtained both FCC certification and RID compliance for the Mavic 4 Pro before deciding not to sell it here. However, that doesn’t necessarily mandate that gray market units sold internationally all must also currently still meet those requirements.

2. What is your basis for asserting that hardware is globally identical?
Once DJI decided not to sell in the United States, why would they necessarily have to continue to manufacture all global units to U.S. specifications?

3. My two Korean units, manufactured in July 2025, were manufactured after DJI had decided not to sell in the U.S..

4. My Adorama unit was manufactured in May of 2025, where U.S. sales were still a possibility.

GadgetGuy · 2025-08-29T23:12:22-0400

YorksPhotos said:
I have confirmed my 2 KR's and a Japan M4P are transmitting RID's. It also appears that all are in FCC confirming FlyerX's post above.

Hard to argue with RID being transmitted.
That's disappointing. I was hoping not.
External RID modules don't update the pilot location after launch.

So, how did you verify FCC transmission?

YorksPhotos · 2025-08-30T00:01:13-0400

GadgetGuy said:
Hard to argue with RID being transmitted.
That's disappointing. I was hoping not.
External RID modules don't update the pilot location after launch.

So, how did you verify FCC transmission?

It "appears" to be in FCC mode, I am not seeing anything limiting transmit power. All the screen shots of different bars on the chart have been contradicting from a YouTuber not using a M4P at least the ones I have seen. There is so much misinformation being spread and most of it is pure speculation. So far for me the only difference in a KR unit is the label. All the mess over the KR and no proof it is any different functionaly other than no US cord. Not transmitting RID from KR units has been debunked. Now throwing manufactures date in the mix. Mine was 6/25 and sending RID and no evidence of any manufacturing changes. DJI designed the M4P to include the US and wants to be in the US market. As posted by others it just doesn't make sense to remove the FCC capability when it just a software/firmware switch based on GPS like FlyerX has posted. It would be interesting to see if a M4P in another country is transmitting RID. I am still convinced that all M4Ps are created equal.