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4. SSB Phone Operation
Connecting a suitable Microphone
Most "Computer Condenser" microphones will work when directly plugged into the MIC connector on the front
panel of the Apache Transceiver. The condenser mic requires a small bias voltage. You will need to enabled the
bias in the Setup Form. The RING is connected to the push-to-talk circuit and must remain disabled in
software if a stereo mic is connected. The SLEEVE is connected to the Transceiver's analog ground. The
SPACE BAR of your keyboard acts as the default push-to-talk for all microphones. A Computer Condenser
mic without a push-to-talk switch can easily be used by substituting the SPACE BAR of your KEYBOARD.
Example: here is a link to a $3 USD microphone using the keyboard space bar for push-to-talk:
http://www.officedepot.com/a/products/969486/Cyber-Acoustics-ACM-51-Boom-Microphone/
PowerSDR mRX PS has a convenient Setup menu with individual selections for Tip and Ring settings.
Copyright Apache Labs ©
page 25
26 February 2019
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