down to level 1 then hold the (-) key down for 1 second and release, a voice message confirmation will
follow saying "volume off". To reactivate push the (+) key once and the mode will revert back to the level
1 volume setting.
CHANNEL
This mode changes the main radio channel selections. By pressing the (+)(-) keys while in this mode the
channels scroll up and down accordingly. A voice message confirms each new channel number selected
as the (+) (-) keys are pressed. The number of channels available in this mode depends on the headset
configuration (see page 2). The channels are in a rolling configuration, that is, when the top channel has
been reached, pressing (+) again will revert back down to the first channel available, followed by a voice
confirmation.
VOX
This mode will adjust the voice activation (VOX) sensitivity. By pressing the (+)(-) keys while in this mode
the lip microphone is made more or less sensitive to activation via the user's voice and/or surrounding
noise levels.
Tip(s):
1) Press (+) as the noise becomes louder (therefore making the microphone less sensitive to outside
noise) and viceversa as noise levels drop.
2) Setting 1 is for low noise applications. Setting 5 is for extreme noise applications. Try different
settings until the optimum setting is found.
3) Setting 1 requires minimal voice level to activate the microphone. Setting 5 requires maximum voice
level to activate the microphone.
4) Do not pause when talking during transmissions, VOX will turn off during pauses
5) Ensure lip microphone is no more than 1/4" away from the mouth.
A voice message will confirm each new setting as the (+)(-) keys are pressed. There are 5 VOX sensitivity
levels and an off position. Off can be activated by scrolling down to level 1 then hold the (-) key down for
1 second and release, a voice message confirmation will follow saying "vox off". To reactivate push the
(+) key once and the mode will revert back to the level 1 vox setting. (i.e. the most sensitive microphone
setting). When in the off position, the headset radio transmit can only be operated via the PTT on the
right earcup (#11, Fig H), or remote finger ptt accessory, see page 13.
SQUELCH
This mode changes the antenna sensitivity level. By pressing the (+)(-) keys while in this mode it will
help filter out unwanted incoming RF noise between transmissions. A voice message confirms each new
setting as the (+)(-) keys are pressed.
Tip(s)
1)
Normal mode is 1
2)
Level 5 has most filtering
3)
Level 1 has least amount of filtering
4)
Off level has no filtering with squelch open
5)
Try different levels in order to settle on the lowest possible setting for the specific application.
There are 5 squelch sensitivity levels and an off squelch position. Off can be activated by scrolling down to level
1 then hold the (-) key down for 1 second and release, a voice message confirmation will follow saying "squelch
off". To reactivate push the (+) key once and the mode will revert back to the level 1 squelch setting.
SUB CHANNEL
This mode changes the privacy/sub-channel selections. By pressing the (+)(-) keys while in this mode the
channels scroll up and down accordingly. A voice message confirms each new channel number selected
as the (+) (-) keys are pressed. There are 38 analog CTSS tunes and 83 digital DCS codes. The channels
are in a rolling configuration, that is, when the top channel has been reached, pressing (+) again will
revert back down to the first channel available, followed by a voice confirmation.
5