On Mon, Jul 11, 2011 at 4:34 PM, George R Allen
<[email protected]>wrote:

> I have interfaced my H10-76 to the F5K.
>
> Phones work, mic doesn't.  I see the slightest output from the H10-76.


> I have had suggestions from this group to put a 100ohm resister from + 5v
> to mic+; but, the David Clark web site advises against this stating that the
> mic is a dynamic mic.
>

You are correct, the H10-76 has a low-impedance dynamic mic and should not
have the bias resistor between +5V and mic+. The H10-76 is intended for
military aircraft which use a different standard (dynamic mic, low-impedance
earspeakers) from general aviation (carbon mic, 600 ohm earspeakers).

I think that if you go through the full audio chain setup, your boom mic
will work without modification. Try setting the mic gain slider on the main
window to mid setting and then adjust the mic gain in the mixer pop-up
window. You might have to turn on mic-boost too.

-- 
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
[email protected]
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
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