Mavic 4 Pro / RC 2 FCC transmission & range issues.

[GadgetGuy]

I think the bars represent the 2.4GHz and 5.8GHz Frequencies.

If that's the case, now I am totally confused again.

I thought if the upper horizontal bar is at 91 dBm/MHZ, it's CE, and if at 87 dBm/MHZ, it's FCC.

What are the lower horizontal bar levels?
Looks like 105 dBm/MHZ for CE and 101 dBm/MHZ for FCC.

So CE mode horizontal lines are at 91 dBm/MHZ and 105 dBm/MHZ
FCC mode horizontal lines are at 87 dBm/MHZ and 101 dBm/MHZ

The difference in the upper horizontal lines is 4 dBm/MHZ and the difference in the lower horizontal lines is 4 dBm/MHZ

The upper horizontal line on the CE graph intersects the vertical dBm/MHZ scale at just above 90, which you indicate is 91.

The upper horizontal line on the FCC graph intersects the vertical dBm/MHZ scale at just below 90, which you indicate is 87.

What am I missing?

 

[Brkfly]

If that's the case, now I am totally confused again.

I thought if the upper horizontal bar is at 91 dBm/MHZ, it's CE, and if at 87 dBm/MHZ, it's FCC.

What are the lower horizontal bar levels?
Looks like 105 dBm/MHZ for CE and 101 dBm/MHZ for FCC.

So CE mode horizontal lines are at 91 dBm/MHZ and 105 dBm/MHZ
FCC mode horizontal lines are at 87 dBm/MHZ and 101 dBm/MHZ

The difference in the upper horizontal lines is 4 dBm/MHZ and the difference in the lower horizontal lines is 4 dBm/MHZ

The upper horizontal line on the CE graph intersects the vertical dBm/MHZ scale at just above 90, which you indicate is 91.

The upper horizontal line on the FCC graph intersects the vertical dBm/MHZ scale at just below 90, which you indicate is 87.

What am I missing?

View attachment 184635

I just received my drone from Korea this morning, and FCC works fine out of the box (after the initial updates).

 

[Suren]

If that's the case, now I am totally confused again.

I thought if the upper horizontal bar is at 91 dBm/MHZ, it's CE, and if at 87 dBm/MHZ, it's FCC.

What are the lower horizontal bar levels?
Looks like 105 dBm/MHZ for CE and 101 dBm/MHZ for FCC.

So CE mode horizontal lines are at 91 dBm/MHZ and 105 dBm/MHZ
FCC mode horizontal lines are at 87 dBm/MHZ and 101 dBm/MHZ

The difference in the upper horizontal lines is 4 dBm/MHZ and the difference in the lower horizontal lines is 4 dBm/MHZ

The upper horizontal line on the CE graph intersects the vertical dBm/MHZ scale at just above 90, which you indicate is 91.

The upper horizontal line on the FCC graph intersects the vertical dBm/MHZ scale at just below 90, which you indicate is 87.

What am I missing?

View attachment 184635

Might be a question for @Meta4. I don't understand these things.

 

[mavic3usa]

I just received my drone from Korea this morning, and FCC works fine out of the box (after the initial updates).

Do you mean to say before the update, the FCC did not work fine?

 

[Brkfly]

Do you mean to say before the update, the FCC did not work fine?

I haven't tried without updating. I just updated the firmware as it asked for it during the initial setup. First/test flight completed, and FCC works completely fine.

 

[jon550]

Has anyone got the Mavic 4 Pro to work with the DJI RC-N2 controller?
I miss the 10-inch iPad tablet for flying.

 

[iceman77]

I just received my drone from Korea this morning, and FCC works fine out of the box (after the initial updates).

I have mine from Korea as well, running the latest .200 firmware available out there, but looking at my transmission stats it shows 94.4dBM that according to this posted by Suren earlier indicates CE mode. I have channel mode set to Auto with frequency set to Dual Band, I wonder how could I get FCC transmission working on mine. Any suggestion here would be appreciated

 

[iceman77]

I was flying my M4P this morning and these are the transmission data I see on my RC2. Can anyone confirm if this is indeed FCC and not CE mode?

 

[Suren]

View attachment 185050
I was flying my M4P this morning and these are the transmission data I see on my RC2. Can anyone confirm if this is indeed FCC and not CE mode?

Yes, that is FCC for the RC2

 

[Suren]

This video also shows what CE and FCC mode looks like on the RC.

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[YorksPhotos]

View attachment 185050
I was flying my M4P this morning and these are the transmission data I see on my RC2. Can anyone confirm if this is indeed FCC and not CE mode?

No reason for it not to be on FCC in the US. There has been no evidence that the Korean or any other international marketed M4P's are not using FCC when in the US. The only difference I have seen is the lack of the US ac cord shipped in the KR box. You are pegging 110 db the same as my KR and Japan M4P.