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8

Operation

ˆ

Operation

Before you use your CB, you should know 
how to use it effectively and courteously. 
“Transmission Courtesy” on Page 10 
contains information that will help you get 
more enjoyment from your CB.

RECEIVING 
TRANSMISSIONS AND 
ADJUSTING SQUELCH

1. Set 

PA/MON/CB

 to 

CB

.

2. Turn 

SQUELCH

 fully counterclockwise.

3. Turn 

RF

 

GAIN

 fully clockwise.

4. Turn on the transceiver by turning 

VOLUME

 clockwise until it clicks. All LCD 

segments appear briefly. Then the 
channel and 

HN

 appear.

5. Rotate the channel selector, or 

repeatedly press (or hold down) 

UP

 or 

DOWN

 on the microphone until the 

desired channel appears.

6. Adjust 

VOLUME

 to a comfortable 

listening level.

7. To cut out background noise between 

transmissions, wait until there is no 
signal, then slowly turn 

SQUELCH

 

clockwise until the background noise 
stops.

Notes:

• To receive very weak signals, turn 

SQUELCH

 counterclockwise. You 

hear noise between transmissions, 
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 

RF GAIN

 

counterclockwise to reduce the 
receiver’s sensitivity.

To turn off the CB, turn 

VOLUME

 to 

OFF

 until 

it clicks.

TRANSMITTING

Note: we recommend you try receiving 
before you transmit.

Follow Steps 1–7 in “Receiving 
Transmissions and Adjusting Squelch.”

To transmit, hold down 

PUSH

 

TO

 

TALK

 on the 

microphone. 

JN

 appears. Hold the 

microphone 2–3 inches from your mouth and 
speak in a normal tone of voice, then release 

PUSH

 

TO

 

TALK

 when you finish. 

JN

 

disappears.

To turn off the CB, turn 

VOLUME

 to 

OFF

 until 

it clicks.

SELECTING THE 
EMERGENCY CHANNEL

Important: Channel 9 and Channel 19 are 
reserved for motorist assistance and for 
reporting emergency information about 
accidents, hazardous road conditions, and 
so on. Always give emergency messages 
priority on Channel 9 or Channel 19.

To select the emergency channel 9, press 
the channel selector once. Press again to 
select channel 19. 

/

 or 

'/

 flashes. Press one 

more time to return to the previous selected 
channel.

You can also select Channel 9 or 19 by 
turning the channel selector or pressing 

UP

 

or 

DOWN 

on the microphone.

To select another channel, rotate the 
channel selector or press 

UP

 or 

DOWN

.

21-1706.fm  Page 8  Wednesday, January 9, 2002  8:37 AM

Summary of Contents for 210-1703

Page 1: ...Owner s Manual Please read before using this equipment 40 Channel Mobile CB with Digital Compass and EL Backlit LCD Display 21 1706 fm Page 1 Wednesday January 9 2002 8 37 AM...

Page 2: ...trol prevents the transmitter signal from over modulating and distorting Automatic Noise Limiter reduces impulse type noises while receiving Built In PA Public Address Amplifier lets you use your CB a...

Page 3: ...attach the holder to another location in the vehicle such as the dashboard follow these steps 1 Using the holder as a template mark the positions for the mounting screw holes at the desired location 2...

Page 4: ...ach behind the mounting surface to attach the nuts on the bolts use the supplied 5 mm self tapping screws and plain washers to secure the bracket 4 Peel the backings off the adhesive on the back of th...

Page 5: ...he side of the plug Then pull out the plug Caution Never pull on the microphone cable CONNECTING AN EXTERNAL SPEAKER You can connect your transceiver to an external CB speaker so you can hear an incom...

Page 6: ...ver be very careful Do not listen to a continuous broadcast Even though some earphones headphones let you hear some outside sounds when listening at normal volume levels they still can present a traff...

Page 7: ...ne contact with the antenna mast cable or guy wires can cause electrocution and death Call the power company to remove the antenna Do not attempt to do so yourself Caution To comply with the FCC RF Ex...

Page 8: ...ce interference from nearby frequencies turn RF GAIN counterclockwise to reduce the receiver s sensitivity To turn off the CB turn VOLUME to OFF until it clicks TRANSMITTING Note we recommend you try...

Page 9: ...hwest Calibration helps the compass better separate the earth s magnetic field from the magnetic field generated by external influences such as your vehicle providing more accurate heading information...

Page 10: ...rotating DIMMER To turn off the backlight rotate DIMMER fully counterclockwise TRANSMISSION COURTESY Follow these guidelines for radio courtesy when using your CB Wait for a pause in someone else s t...

Page 11: ...her conditions The number of nearby radios operating on the same channel Standing wave ratio SWR between the antenna and the CB Note Your CB radio s transmission rage is generally line of sight 10 15...

Page 12: ...a connected Secure connections All connections free of corrosion Clean and tighten Microphone connector loose Firmly press microphone con nector into jack Be sure PA MON CB is set to CB Radio not on o...

Page 13: ...ts Your local RadioShack store has a wide selection of noise suppression accessories CARE To enjoy your CB for a long time keep the CB dry If it gets wet wipe it dry immediately Use and store the CB o...

Page 14: ......

Page 15: ...15 Notes Notes 21 1706 fm Page 15 Wednesday January 9 2002 8 37 AM...

Page 16: ...ring the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by law a correct t...

Page 17: ...writing to FCC Attention R C 1270 Fairfield Road Gettysburg PA 17325 7245 63 FR 68976 Dec 14 1998 Subpart D Citizens Band CB Radio Service SOURCE 48 FR 24894 June 3 1983 unless otherwise noted GENERA...

Page 18: ...or local government unit or other legal entity e Where the rules use the term FCC that means the Federal Com munications Commission f Where the rules use the term CB station that means a radio station...

Page 19: ...tor has satisfied its responsibility to make reasonable efforts to protect the Observatory from interference the unit may be allowed to operate 48 FR 24894 June 3 1983 as amended at 62 FR 55535 Oct 27...

Page 20: ...may contact the nearest FCC field office for a worksheet to help you figure the maximum allowable height of your antenna Consult part 17 of the FCC s Rules for more informa tion WARNING Installation a...

Page 21: ...ch and selective calling circuits If the signal is an audible tone it must last no longer than 15 seconds at one time If the signal is a subaudible tone it may be transmitted continuously only as long...

Page 22: ...418 CB Rule 18 How do I use my CB station in an emergency or to assist a traveler a You must at all times and on all channels give priority to emergency communications b When you are directly partici...

Page 23: ...y violated any provision of the Communications Act you may be fined up to 10 000 or you may be imprisoned for one year or both See section 501 of the Commu nications Act 48 FR 24894 June 3 1983 as ame...

Page 24: ...s not in clude 1 Repair or servicing of a CB station transmitter see CB Rule 24 95 424 or 2 Changing plug in modules which were certificated as part of your CB transmitter c You must not operate a CB...

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