On Tue,11/24/2015 7:02 AM, Chuck Dietz wrote:
The CM500 needs batteries?
No, but it's an electret mic, and like all electret mics, does need DC
bias. A "battery box" comes with it.
Or can it be powered from a rig like the Icom?
Yes, 5K resistor (value not critical) from V+ (typically about 8V) to
Mic Hot.. Virtually all modern ham rigs (30-40 years) have V+ at the mic
connector, different pin by brands. It's also a fairly "hot" mic, so
you may need to turn gain of way down rig (I did with FT1000MP to use at
PJ4A). I did, and it sounded very good.
73, Jim K9YC
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