[EMAIL PROTECTED] wrote:
I'm looking for information on connecting a computer headset's boom mic to the K3 rear mic
jack. I've read through the archives, but it seems the messages either refer to making
connections via the front jack (with its discrete pins available), or just, "I plugged
it in & it worked." I don't have my K3 yet to test with. My following questions
are based on the scenario that just plugging it in doesn't work.
My mic plug is stereo, so I'm assuming its an electret. The K3's jack is mono, but
apparently has a bias voltage available via the menu. I'd like to build a
"dongle" (short adapter cable) to interface the mic with the jack. To preserve
the headset, I don't want to modify its plug or cable.
Does the bias voltage appear on the tip of the K3's jack? One archived message indicated
that at least some computer mics have both the ring & tip connected together; I'm at
work now & can't test mine. Would I add a resistor across the tip & ring lines,
and add a small capacitor in-line from the K3's jack tip to the mic's tip to block DC?
Sorry for what may be a painfully obvious set of questions, but I've never
connected anything but a regular mic to a rig before. I plan on using the rear
jacks to keep unnecessary cables from cluttering up the front of the rig.
73,
Mike
KW1ND
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Mike,
I could not find out from the manual how the rear mic jack is configured
( whether bias is on tip or ring) but I just plugged in a computer mic
and it works fine; and I am using a PTT foot switch. Perhaps it was just
luck that the computer mic had the same setup as the K3 mic jack. It
would still be nice to know how the K3 mic jack is configured for
tip/ring/sleeve. Getting good audio reports with the computer mic.
Dale
K5AJZ
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