Mic Connector - Ten-Tec Argonaut VI 539 User Manual

MIC Connector

Front panel jack used for connection of a
microphone. The Argonaut VI features the
common 8-pin microphone jack used in many
amateur radio transceivers. Most dynamic or
Electret Microphones can be used.
adapting a microphone, please refer to the
wiring diagrams in Figures 2.4-1 and 2.4-2
Figure 2.4-1 Transceiver Microphone Jack
Front View
Pin 2 (+9 Vdc) need only be connected if the
microphone element in use is an electret
condenser requiring a polarizing voltage.
Chassis ground and mic signal ground are
separated to reduce the possibility of
introducing stray hum or RFI into transmit
audio signal. We recommend that the case of
the microphone also be tied to chassis ground
on the transceiver via a shielded cable to pin
5. This is to help assure stray RF does not
have a path to be coupled into transmit audio.
The cable carrying mic signal and mic signal
ground should be shielded. This prevents the
cable itself from acting as an antenna and
coupling RF back into mic audio. NOTE:
Some aftermarket microphones are not wired
with separate microphone signal grounds and
chassis ground. We recommend separate pins
539 / Argonaut VI Users manual
Part #74479
Printed in USA
When
Release 0.10 – November 13, 2012
14
for use for mic negative signal and chassis
ground as shown in Figure 2.4-2
Figure 2.4-2 Transceiver Microphone Jack
Recommended Cable Wiring