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7

1. Rotate 

OFF/VOLUME

 clockwise to turn on the CB. 

2. To decrease CB sensitivity, slowly rotate 

SQUELCH

 

clockwise until the hissing sound stops. To increase 
sensitivity, rotate 

SQUELCH

 counterclockwise. 

Ô

3. Adjust 

VOLUME

 to a comfortable listening level.

4. To tune to a channel, rotate the knob on the front of the 

radio, or press 

UP/DN

 on the microphone. 

Ô

5. If necessary, rotate 

RF GAIN

 clockwise to boost signal 

strength.  

6. When you are finished, turn off the CB.

T

RANSMITTING

Before transmitting, adjust 

CB

S/RF

NOR

, and 

SQUELCH

 to 

match the illustration under “Receiving” .

1. Follow steps 1-3 in “Receiving”. 

Ô

3. Rotate 

MIC GAIN

 clockwise or counterclockwise to 

adjust the mic gain.

4. When you are finished speaking, release 

PTT

. The CB 

can receive transmissions on the selected channel.

5. When you are finished, turn off the CB.

Ô

 NOTE 

Ô

 

If the CB picks up partial or very 
weak transmissions, continue to 
turn 

SQUELCH

 clockwise to 

decrease the CB's sensitivity to 
these signals. Turn 

SQUELCH

 

counterclockwise if you want to 
listen to a weak or distant 
station.

Selecting either Channel 9 or 19 
overrides the manual channel 
selection control.

All channels, with the exception 
of Channels 9 and 19, are 
available for general 
communications. Channels 9 
and 19 are reserved for motorist 
assistance and for reporting 
emergency situations, 
hazardous road conditions, and 
the like. To quickly tune to 
Channel 9 or 19, set 

CH9/NOR/CH19 

to 

CH9

 or 

CH19

.

Do not speak too loudly when 
transmitting. It does not make 
your signal any stronger, and 
might distort your transmission.

If you want to monitor Channel 9 
during CB operation, set 

DUAL/OFF

 to 

DUAL

If you hear a low-level popping-
type noise, set 

NB/OFF/MON

 to 

NB

 to turn on the noise blanking 

circuit. This helps minimize 
background noise.

2. Hold down 

PTT

 

and speak into 
the microphone. 

While transmitting, your 
transmission strength is 
shown on the signal meter.

21-1576_rsj_012604.fm  Page 7  Monday, January 26, 2004  11:39 AM

Summary of Contents for 21-1576

Page 1: ...ng CB radio provides hours of fun and entertainment Listen and talk to people from all over the country while traveling and make new friends along routes that you regularly travel It is also a great w...

Page 2: ...clear of the vehicle s pedals or other moving parts the CB is not directly in front of heating vents all wires and cables can reach their connection points 1 Use the mounting bracket as a template to...

Page 3: ...ard you Do not pull the microphone cable INSTALL AN ANTENNA There are many different types of antennas for mobile CBs Dual band antennas provide optimum reception of CB and WX channels Your local Radi...

Page 4: ...e 5 1 Connect the supplied DC cable to the radio s POWER jack 2 Connect the cable s black wire to your vehicle s negative battery terminal or to a metal part of the vehicle s frame that is not insulat...

Page 5: ...the cable s red wire to the DC power supply s positive terminal 5 Plug the DC power supply into a standard AC outlet CAUTION Most 12 volt DC power supplies plug into a standard AC outlet to produce DC...

Page 6: ...external speaker automatically disconnects the internal speaker Public Address Speaker To connect a PA speaker use an 8 ohm speaker capable of handling 5 or more watts of power and equipped with a 1 8...

Page 7: ...ns continue to turn SQUELCH clockwise to decrease the CB s sensitivity to these signals Turn SQUELCH counterclockwise if you want to listen to a weak or distant station Selecting either Channel 9 or 1...

Page 8: ...7 Out of service 10 8 In service 10 9 Repeat last message 10 10 Negative NO 10 11 ____________in service 10 12 Stand by 10 13 Report road weather conditions 10 14 Information 10 15 Message delivered...

Page 9: ...able to call for assistance Camping fishing and other sports are more fun with a CB Locate a buddy or find out what s cooking back at camp Transmission Courtesy Wait for a pause in someone else s tra...

Page 10: ...s with new high voltage noise suppression wires Install noise suppressors on your spark plugs or install new spark plugs that have built in suppressors Be sure that the black wire ground connection is...

Page 11: ...meter reading of 1 on the SWR meter s top scale This reading can only be obtained under laboratory conditions A SWR ratio of 1 5 1 to 2 1 is excellent for most mobile CB antenna applications Ratio Rat...

Page 12: ...er channel RED Normal weather signal No emergency broadcast Flashing RED Weather alert broadcast on the selected channel Turn to WX to listen or press PTT or UP DN to clear the alert To verify recepti...

Page 13: ...ble to reduce audio feedback or howling 5 Adjust MIC GAIN as needed to set the PA s volume USING THE PA MONITOR FUNCTION 1 Adjust OFF VOLUME to the minimum listening level 2 Set CB WX PA to PA PA appe...

Page 14: ...t circuits When replacement is required use a 2 amp fast acting glass fuse available at your local RadioShack 1 Make sure your vehicle and CB are turned off 2 Push the fuse holder ends together Then t...

Page 15: ...microphone is securely connected Check for a good antenna connection Trouble transmitting Make sure the antenna cable is securely connected to the radio Make sure the antenna is fully extended Make su...

Page 16: ...NY DAMAGES RESULTING FROM INCONVENIENCE LOSS OF TIME DATA PROPERTY REVENUE OR PROFIT OR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY...

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