Car Stereo System User Manual
VX-2100E SERIES OPERATING MANUAL8
Description of Operating Functions
MONITOR 
(
MONI
)
Press (or press and hold) the assigned programmable key to cancel CTCSS- and
DCS-controlled squelch; the TX/BUSY indicator will glow green
SQUELCH 
(
SQL
) 
OFF
Press (or press and hold) the assigned programmable key to open the SQL to hear
background noise (unmute the audio); the TX/BUSY indicator will blink green.
SQUELCH 
(
SQL
) 
SET
You can manually adjust the squelch level using this function:
 Press (or press and hold) the assigned programmable key. A tone will sound, and
the current squelch will level appears on the display.
 Press the 
[
T
]
/
[
S
]
 button to select the desired squelch level.
 Press this key again. A tone will sound, and the display will revert to the normal
channel indication.
CHANNEL UP/DOWN
Press (or press and hold) the assigned programmable key to select a different chan-
nel.
CC UP/DOWN 
(
CONTINUOUS CH UP/DOWN
)
Press and holding in the assigned programmable key causes the radio to begin step-
ping (repeatedly) upward or downward through the channels.
ADVANCED OPERATION










