I have just received my Microair 760 back from repair by Rick Lord at
Erie Aviation. It too had garbled transmissions. Had the opportunity
to use it on Saturday and the reviews are in. "It sounds like you are
in a radio studio." "The transmission has fidelity! More base
response than an AM radio." "Loud AND clear."
Apparently it had a faulty ground and poor FM shielding. I have no
idea what that means but Rick Lord is a radio wizard and the fix was
inexpensive with a turn-around time of less than a week. ( I also
replaced the original electret mic with an Amplified Dynamic mic. I
thought I try that before sending the unit in but it didn't help the
garbling. It probably helps with the "fidelity").
My 2 Cents
Gene