Operation; Receiving Transmissions And Adjusting Squelch - Radio Shack TRC-504 Owner's Manual

Compact 40-channel mobile cb radio with on-mic channel selector
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21-1704.fm Page 11 Thursday, August 5, 1999 1:20 PM

OPERATION

Before you use your CB, you should
know how to use it effectively and cour-
teously. "Operational Hints" on Page 14
contains information that will help you
get more enjoyment from your CB.
RECEIVING
TRANSMISSIONS AND
ADJUSTING SQUELCH
1. Set
to
PA/MON/CB
2. Turn
SQUELCH
wise.
3. Turn
fully clockwise.
RF GAIN
4. Turn on the transceiver by turning
clockwise until it clicks.
VOLUME
The channel display lights, the
channel appears, and the RX indica-
tor lights.
.
CB
fully counterclock-
5. Set
OUT/CH9/CH19
a channel other than an emergency
channel.
6. Rotate the channel selector, or
repeatedly press (or hold down)
or
on the microphone until
DOWN
the display shows the desired chan-
nel.
7. Adjust
to a comfortable lis-
VOLUME
tening level.
8. To
cut
out
background
between transmissions, wait until
there is no signal, then slowly turn
clockwise until the back-
SQUELCH
ground noise stops.
Notes:
• To receive very weak signals, turn
counterclockwise. You
SQUELCH
hear noise between transmis-
sions, but you also hear weak
transmissions (those not strong
enough to break through a higher
squelch setting).
• If you experience interference
from nearby frequencies, turn
counterclockwise to reduce
GAIN
the receiver's sensitivity.
to
to select
OUT
UP
noise
RF
11

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