Thanks for that additional info Eric.
73,
Don W3FPR
Eric Swartz - WA6HHQ, Elecraft wrote:
Don - On the K3 you can enable and disable the mic bias to pin 1 from
the menu, so it will work both with our microphones and any other
dynamic mic.
Also we have added more microphone input gain (adjustable) so operation
with the Heil HC4/5 mic's will be no problem.
73, Eric WA6HHQ
--------
Don Wilhelm wrote:
Barry,
I believe the K3 comes permanently wired for the Elecraft microphones,
and that means there is a resistor between 5 volts and pin 1 (AF). If
one wants to use a microphone that would object to having that voltage
present on pin 1, a series DC blocking capacitor should be used.
My reasons to support those conclusions are the fact that Lyle said
the K3 mic is wired just like it would be in the K2 with all jumpers
wired straight across, coupled with the fact that the MH2 microphone
is again being offered for use with the K2 and K3 - if it did not
require the resistor, I would expect to see a change in the microphone
numbering designation.
73,
Don W3FPR
Barry McWilliams wrote:
The wiring for the K2 MD-2, MH-2 microphones and the Heil headset has
5V applied to pin 1 through a 5.6k resistor.
Will the K3 be able to supply 5V on pin 1 through a 5k resistor via a
jumper or some sort of configuration option? If not, I don't think
the current Elecraft microphones will work properly.
Thanks, Barry (WK2S)
_
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