Re the request for info on the MFJ mics. I've had two of
them (MFJ speaker mics) for several years for use at hamfest
and emergency comms. They work just fine for this purpose.
If you are planning on using them in an automobile you'll
probably find that the speaker in most any "speaker-mic"
will not be sufficient. The main reason I find them not
sufficient is that the speaker in the mic is just too small
to move enough air to overcome the ambient noise in a car or
truck. I'd suggest that a separate speaker be used, the
Radio Shack extension speaker works fine for me. Having to
turn an HT to max volume to hear usually introduces
sufficient distortion to be irritating.
BTW, a mic for most HTs can be easily built using Radio
Shacks electret condenser element and an old mic case that
the PTT switch still works. For Icom HTs just put the mic
element in series with the PTT switch. When I used an HT in
my car I used one of these for several years. If and when
you build such a mic stuffing material for pillows makes a
good filler for the case to hold the mic element in place.
One other point, get the longest mic cord you can get. The
less stress you put on the mini plug that plugs into the HT
the better (you'll spend less time fixing the connections).
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