I recently purchased a slightly used Heil Goldline GM-5 microphone,
attempting to use it with an ICOM 735 transceiver. I have read Heil's
web page about the Icom 735 -15dB down on its internal microphone
preamplifier compared to many other radios.

I can only get the GM-5 to drive my IC-735 effectively if the MIC GAIN is
100% open and the COMP LEVEL is up as HIGH as possible. I am getting very
good audio reports compared to the default ICOM HM-12 handheld microphone,
but the Heil GM-5 is not driving the rig very hard and power output is
quite reduced compared to the HM-12 mic. Has anyone out there had a
similar experience and if so any suggestions on what I might do to
improve the driving ability of either the rig or the Heil GM-5?

Larry Gagnon VE7EA

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