Engine load induced radio noise.

[jcolgan]

When I transmit the feedback I hear of myself has considerable noise/static if the engine is under load. I have been told the noise is not being broadcast, so it is an annoyance to me but not an actual communications problem.  I still have a generator which has what I believe is a small old capacitor attached.  The electrical drawings don’t seem to show this capacitor and so I have no part number.  Any thoughts, drawings  or information would be appreciated.  1964 M20C.

[Ragsf15e]

Another place it can easily come from is your mags and harness.  I had bad noise once after maintenance and found several very loose spark plug connections.  They don’t get tightened much, but if they are loose it’s noticeable.