FAQ / Analog VTX Noise

power VTX from regulated power.
- (that said, my 6S direct-input VTX is cleaner than my 5v regulated from FC versions.)
- prefer VBAT ground rather than some other ground if soldering to FC.
power FPV cam from VTX.
OSD video into FC, then out to VTX.
twist yellow and black lines (like twisted-pair network cable)
can also double-ground cam to both FC and VTX.
use good antennas. prefer "ipex or mmcx directly on the antenna" rather than "pigtail-adapter to antenna."
prefer 9V bec if available in such situations.
usually a capacitor is needed on quads with high voltage and large motors.
make sure that the signal wires of the camera and vtx are shortened as much as possible.
where the ground is connected and where the vtx and camera are powered from has an effect.
avoid ground loops.
don't use auto-scan on your goggle/module.
calibrate goggle/module if necessary (not typically required).

That's about as good as it gets.

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