I would need a bit help identifying this noise.
I finished my newest build Nighthawk 200 /BrainRe1/ mPDB/ TBS UNIFY PRO 5G8 V2 / littlebee30a / Emax Rs2205 2300kv / 4s
For me this doesn't look like a "esc/motor" noise as it stays constant while flying !? but I am not sure.
A recording of my latest test today can be found here
I have this noise all the time. Disarmed / armed /spinning motors/ not spinning.
In the above Video I used the filtered out of the RE1 but as I have the 5V TBS Unify vTx I had to solder a stepdown in between. I used the Diatone Mini BEC 5V 2 Ampere.
For easier management I got a JST BEC cable soldered onto the mPDB one for the filtered out and one on the 5V out.
on the vTx power cables I got the Mini BEC soldered onto which then plugs into my JST cable coming from the mPDB
the cable is routed onTop of the Re1. So its not in between, as they warn you at the Brain Re1 manual page
What I tried so far
I tried different Frequencies and channels to check. No difference.
I tried powering the vTx directly from the 5V out (unfiltered) without the Mini Bec in between. No difference.
I opened up my build and separated the battery and vTx as far as possible. No difference.
Checked solder joints but everything looks alright.
So before I have to rip everything apart again (which btw is a nightmare on this super tight build.)
I thought I try it here if someone might have a good suggestion where to look first.
I got a separate LC filter from my old build which I could try as well , my last hope (didn't had the time yet) but I would really like to avoid that(big clumpy and more weight) and use the filtered out of the mPDB.
So I hope someone can point me into the right direction bc thats the last thing stopping me from calling the build done.
Everything else works flawless.