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8

CB OPERATION TIPS

Like most activities, CB radio use has
its customs and courtesies. Although
this CB radio is designed for emer-
gency use, it does work on all 40 CB
channels and can be used for more
than just emergencies. The following
tips will help you get the most benefit
and satisfaction from your CB.

CB COURTESY

• Wait for a pause in someone

else’s transmission before you
ask for a break.

• If you do not receive an answer

to your call after a second at-
tempt, sign off and wait several
minutes before trying again.

• Do not hold down 

PUSH TO

TALK

 when you are not talking.

(This is called 

dead keying

.)

• Assist callers with directions,

road conditions, and any other
reasonable requests.

MAXIMUM RANGE

The maximum range and quality of
CB transmissions vary depending on
these conditions:

• The type and quality of antenna

used

• The height of the antenna’s

mounting location — the higher
the antenna, the better the sig-
nal’s range

• The surrounding terrain —

mountains and tall buildings limit
the range

• Weather conditions

• The number of nearby CBs op-

erating on the same channel

• Standing Wave Ratio (SWR) be-

tween the antenna and the CB

You can check the SWR be-
tween the CB and a mobile an-
tenna using an SWR meter (Cat.
No. 21-523). Follow the instruc-
tions supplied with the SWR
meter and the mobile antenna to
change the SWR, if necessary.

Note:  You cannot adjust the
SWR of the supplied antenna.

21-1588.fm  Page 8  Thursday, August 5, 1999  10:05 AM

Summary of Contents for 21-1588

Page 1: ...Cat No 21 1588 OWNER S MANUAL Portable Emergency CB Radio Please read before using this equipment TRC 401 21 1588 fm Page 1 Thursday August 5 1999 10 05 AM...

Page 2: ...Phase Locked Loop Fre quency Synthesizer provides re liable and exact tuning Auto Squelch eliminates the need to set the squelch level Digital Channel Number Display makes it easy to see which chan ne...

Page 3: ...i cations can lead to illegal operation as defined by Part 95 of FCC Rules Such illegal operation can lead to very serious consequences To be safe and sure Never open your CB s case Never modify your...

Page 4: ...n Tips 8 CB Courtesy 8 Maximum Range 8 Using Common 10 Codes 9 Common Uses for a CB Radio 10 Business Uses 10 Personal Uses 10 Troubleshooting 11 Reducing Noise 12 Care and Maintenance 13 Replacing th...

Page 5: ...tenna s PL 259 plug to ANT on your CB Follow these steps to mount the sup plied antenna 1 Hold the antenna in an upright position and extend the antenna Note Fully extend the antenna for maximum range...

Page 6: ...rom your vehicle s battery 1 Plug the barrel plug of the sup plied power cord into DC 12V on the bottom of the CB 2 Ensure the cigarette lighter plug cap is tightly screwed onto the plug and insert th...

Page 7: ...mouth hold down PUSH TO TALK and speak directly into MIC the built in microphone The TX transmit indicator lights In an emergency broadcast your CLIP Call sign identify yourself Location be exact Inj...

Page 8: ...rs with directions road conditions and any other reasonable requests MAXIMUM RANGE The maximum range and quality of CB transmissions vary depending on these conditions The type and quality of antenna...

Page 9: ...is good 10 3 Stop transmitting 10 4 Message received and understood 10 5 Relay information to _________ 10 6 I am busy 10 7 Out of service 10 8 In service 10 9 Repeat last message 10 10 Negative No 1...

Page 10: ...ersonal Uses Keep in touch with home while driving to work to the store or to a social activity Let your family know you are tied up in traffic or that you will stop by the store on the way home If yo...

Page 11: ...ress PUSH TO TALK Secure the antenna connection Fully extend the antenna Not receiving well Secure the antenna connection Fully extend the antenna Distorted or unclear sound This may be caused by SSB...

Page 12: ...wire Be sure the antenna s magnetic base is securely attached to a metallic surface If you use an antenna other than the magnet mount type be sure that the ve hicle battery s ground connec tion is se...

Page 13: ...es and can cause the TRC 401 to work im properly Keep the TRC 401 away from dust and dirt which can cause pre mature wear of parts Wipe the TRC 401 with a damp cloth occasionally to keep it look ing n...

Page 14: ...nplug the power cord from the vehicle s cigarette lighter and the CB 2 To open the cigarette lighter plug and remove the fuse turn the cap counterclockwise and remove it Take care not to lose the tip...

Page 15: ...r Frequency Coverage 26 965 27 405 MHz all 40 channels Power Input at 12 V DC 5 Watts Power Output at 12 V DC 2 5 Watts Spurious Emission 60 dB or Better Type of Modulation A3 Modulation Capacity 80 9...

Page 16: ...ing 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 th...

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