11 HEADSET OPERATION
The optional 6 pin Hirose industrial connector also allows use of a variety of heavy
duty and lightweight headsets and application specific audio accessories to enhance
you communications capability. Use either the headset/accessory’s integral PTT or use
the speaker mic PTT to transmit. The internal speaker is immediately disabled when a
headset is plugged in.
11.1. Accessory Mic Boost
Users can increase an audio accessory’s microphone gain on MWRSM models fitted
with the Hirose accessory port to cater for sensitivity requirements or variations in
headset manufacturer’s specifications. To activate the higher sensitivity, the MWRSM’s
blue VOLUME UP button should be held down while powering up. The user will
thereafter hear 2 short confirmation beeps at the end of each start up tone sequence.
To revert to standard operation, the unit should be powered up with the VOLUME
DOWN blue button held down.
Note:- this does NOT effect the sensitivity of the MWRSM’s normal internal front
cover microphone. N.B. See Headset use warning on page 17 for safety warning
regarding use of headsets.
Doc Number:
TNM-U-E-0180 ISSUE 1.1
Page
24
