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1. 08:49 PM - Mixing together two mics (Radioflyer)
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| Subject: | Mixing together two mics |
Is it workable to mix two mics together for input into a Com's mike jack by using
impedance matching resistors? Here' my situation...
My two place aircraft is fitted with one headphone jack and one mic jack. The mic
is keyed via SPST PTT switches in the control sticks. The intercom I have
is a portable unit that inconveniently gives me two mic output plugs: one for
pilot and one for copilot.
Ostensibly, the two mic ouputs are to allow use of external DPDT PTT switches and
a "Y" harness which would then plug into the aircraft's one mic jack. I understand
that the normally open DPDT switches essentially shield one mic from the
other and allow the "Y" cord to "mix" the mics into one output. However, I
want to avoid the resulting cabling mess if I were to do this. So, I'm looking
for a good way to combine the mic outputs into one output without causing too
much signal deterioration.
--Jose
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=342762#342762
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