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Operation
Operation
2120
Software
Version/Factory
Settings
Software Version/Factory Settings
Displays current software version and returns
unit to original factory settings. To view software
version, rotate Menu/Enter knob clockwise to
select Setting then Software Version.
To restore default settings, Press Menu/Enter
knob again. Rotate Menu/Enter knob clockwise
to select Setting then Go To Default.
Press Menu/Enter knob to restore default
settings. Choose NO to maintain present
setting with no change.
RADIO CHECK
SETTING
CONTRAST
GO TO DEFAULT
SOFTWARE VER
YES
RESTORE DEFAULT
NO
GO TO DEFAULT
SOFTWARE VER
Note
Default display color is green.
When switched to NB mode the RF Noise
Blanker is activated, providing increased
noise filtration.
When switched to OFF mode all noise
filtration will be turned off.
NB OFF Button
RF Gain Control
RF Gain Control
The RF Gain is used to optimize reception in
strong or weak signal areas.
Note
The RF Gain is used to optimize
reception in weak signal areas.
Note
The RF noise blanker is very
effective in reducing repeti-
tive noises such as ignition
interference.
Rotate the RF Gain knob counterclockwise to
reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.
1
NB/OFF Button
1
SIG
+30dB
1
1
2
3
4
TX
PWR
3
5
7
9
MEM NB
TX
RX
VOL SQ
OFF
DYNAMIKE
MIN
RF GAIN
MIN MAX
M
E
N
U
P
U
S
H
E
N
T
E
R
SCAN / M SCAN
DIM / ESC
CB / PA
NB
CH9 / 19
SIG +30dB
1
1
2
3
4
TX PWR
3
5
7
9
MEM NB
TX
RX
VOL SQ
OFF
DYNAMIKE
MIN
RF GAIN
MIN MAX
M
E
N
U
P
U
S
H
E
N
T
E
R
SCAN / M SCAN
DIM / ESC
CB / PA
NB
CH9 / 19
25LX_MANL.indd 20-21 11/15/11 9:43 AM