Have a look at my website www.swiftavionics.com.au
You'll find the mic you want there!!
Cheers
MArk

On Jun 1, 3:14*am, bildan wrote:
On May 31, 8:30*am, Edwin Funk
wrote:

I have an 11 yr old Microair 760 that has recently been updated for all
suggested modifications, and I need to replace the electret microphone due
to
weak transmission modulation. *What works with this type of radio? *A
sales
person has suggested a Peiker amplified dynamic mic, but I would
appreciate
hearing from those who have experience with this type radio.

Thanks

As you say, you probably need a new mike. *But, there is an microphone
modulation gain adjustment screw on the side of the radio - usually
inside a hole covered by a paper stick on label. *As the radio comes
out of the box the mike gain is set up for an airplane with engine
noise. *Check you manual.

Pilots of noisy airplanes tend to shout into their mikes so the mike
gain is set low to prevent over modulation. *Glider pilots speak more
softly in their quieter cockpits so need the mike gain increased.
(Notice to 'you know who': Shouting into the mike doesn't make the
radio transmit farther.)

I set mine by having a glider pilot/Ham radio operator with a known-
good radio listen to my transmissions as I slowly increased the mike
gain. *I tried to speak in the same voice I'd use in flight. *When the
Ham reported over modulation, I backed the gain screw off a half turn
and retested for a clean *5x5 transmission. *It's worked fine since.

Bill D