I have the unusual need to decrease the sensitivity of my headset mike. The
aircraft I fly has a very noisy cockpit (tube and fabric two stroke pusher )
when I transmit the mike picks up alot of background noise. The headset is
an avcom ac900 flex boom ,mike is an M71 I tried a mike from a DC headset it
was better but still not great. Is there anything I can do to reduce the
sensitivity of the mike?

Thanks in advance , Peter T