Van,
The Heil HC-5 and HC-4 mic elements do produce less output than many other
types of mic element, and you will find a number of Posts to the List
discussing this issue. Unless these mic elements are quite close to one's
mouth it does seem that a preamp is required with the K2. I use a Heil
Proset Plus headset which has a boom assembly containing a HC-5 and a HC-4
which means that the mic is about 2 or 3 inches from my mouth, and I do not
need a preamp to drive my K2/100 to full specified output, in fact on 40m I
have to move the mic a little to avoid the ALC becoming too active. FWIW my
wife says that I have a 'quiet' voice.
73,
Geoff
GM4ESD
Frank Van Cleef W1WCG <[EMAIL PROTECTED]> wrote:
Greetings, all
I recently acquired a Heil Handi-Mic with the HC-5 element, intending to use
it with a new K2 radio (#5510). I used straight-across wiring for the
configuration connector in the front panel since the Handi-Mic is equipped
with a cable wired for Kenwood mikes. No resistor from pin 1 to pin 6 since
the element is dynamic. The mike does work, but the output seems low -- the
ALC indication barely lights the top bar, and the RF output barely shows on
the louder peaks. A MH-2 mike shows a little more output, though not that
much more. The over-all feeling is that the Handi-Mic has a relatively low
output level and may need a preamp to work properly with the K2. The mike
works about the same with either K2 here. I've noted the diagram for a mike
preamp for the K2, but before I build up something like that, I'm just
wondering if anybody else has tried the Handi-Mic, and what any experience
has been with respect to driving the K2 with that mike. Comments, anyone? ?
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