Dimmer Control; Rf Gain Control; Setting Squelch - Cobra 25 NW ST Operating Instructions Manual

Operation

Dimmer Control

Dimmer Control
S Q L
Note
The Dim controls the brightness
of the front panel, signal strength
meter and channel display.
1

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.
1
14
25 NW ST
M I N M A X M I N M A X
Rotate the DIM knob clockwise for
maximum brightness; counter-clockwise
for minimum.
25 NW ST
RF
SIG 1 3 5 7 9 +30dB
O F F
M I N M A X
Rotate the RF Gain knob counterclockwise
to reduce gain in strong signal areas. In weak
signal areas turn clockwise to increase gain.

Setting Squelch

Squelch is the "control gate" for incoming signals.
RF
SIG 1 3 5 7 9 +30dB
O F F
Full clockwise rotation closes the gate
1
allowing only very strong signals to enter.
RF
SIG 1 3 5 7 9 +30dB
O F F
2 Full counterclockwise rotation opens the
"gate" allowing all signals in.
M I N M A X
Operation
Setting Squelch
Gate closed
25 NW ST
STRONG SIGNALS
MEDIUM SIGNALS
M I N M A X M I N M A X WEAK SIGNALS
NOISE
Gate open
25 NW ST
STRONG SIGNALS STRONG SIGNALS STRONG SIGNALS
MEDIUM SIGNALS MEDIUM SIGNALS MEDIUM SIGNALS
M I N M A X
M I N M A X
WEAK SIGNALS WEAK SIGNALS WEAK SIGNALS
NOISE NOISE NOISE
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