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13

TROUBLESHOOTING

If your CB is not working as it should, follow the suggestions below to see if you
can eliminate the problem. If you cannot, take the CB to your local Radio Shack
store for assistance.

Symptom

 

Check That:

Trouble with reception

• The CB is turned on.

• VOLUME is turned up.

• SQUELCH is adjusted properly.

• The microphone is securely connected to the

CB.

• The antenna cable is securely connected to

both the antenna and the CB.

Trouble with transmis-
sion

• The CB is turned on.

• The microphone is securely connected to the

CB.

• All connectors are clean and tightened.

• The antenna cable is securely connected to

both the antenna and the CB.

• You are fully pressing the microphone talk but-

ton.

CB does not work at all 

The power supply (either vehicle or 12V DC) and 
in-line fuse (replace only with an identical 2-amp 
fuse) are working; see “Replacing the Fuse.”

21-1599.fm  Page 13  Thursday, August 5, 1999  10:59 AM

Summary of Contents for TRC-499

Page 1: ...Cat No 21 1599 OWNER S MANUAL 40 Channel 2 Way CB Radio Please read before using this equipment TRC 499 21 1599 fm Page 1 Thursday August 5 1999 10 59 AM...

Page 2: ...provide su perior selectivity and prevent adja cent channel interference Hysteresis Squelch Circuit compensates for fading signals and eliminates signal chopping during re ception Automatic Noise Limi...

Page 3: ...s 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 CB Your...

Page 4: ...wer 7 Using the CB as a Base Station 7 Connecting an Optional External Speaker 8 Operation 9 Receiving Transmissions and Adjusting Squelch 9 Transmitting 9 CB Operation Tips 10 Common Uses for a CB Ra...

Page 5: ...phone cable MOUNTING THE TRC 499 The most common mounting location for this CB is under a vehicle s dash board However if you use the TRC 499 as a base station you can place it on a desk shelf or tab...

Page 6: ...ock washers 4 Attach the CB to the mounting bracket using the rubber wash ers and mounting knobs INSTALLING AN ANTENNA Caution To prevent damage to your CB you must connect an antenna to the CB before...

Page 7: ...teps to power the CB from your vehicle s battery 1 Connect the CB s black wire to your vehicle battery s negative terminal or to a metal part of the vehicle s frame that is not insulated from the fram...

Page 8: ...remove the antenna DO NOT attempt to do so yourself 2 Connect the antenna s cable to the ANTENNA jack on the back of the CB 3 Connect the CB s black wire to the DC power supply s negative terminal 4 C...

Page 9: ...partial or very weak transmissions turn SQUELCH clockwise to decrease the CB s sensitivity to these signals If you want to listen to a weak or distant station turn SQUELCH counterclockwise 4 Adjust VO...

Page 10: ...or a CB Radio Business Uses Truck drivers and delivery per sonnel can learn road and traffic conditions and get assistance in locating destinations A CB is also good company on those long hauls On con...

Page 11: ...y 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...

Page 12: ..._ 10 6 I am busy or are you busy 10 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 ____________ conditions 10 14...

Page 13: ...to the CB The antenna cable is securely connected to both the antenna and the CB Trouble with transmis sion The CB is turned on The microphone is securely connected to the CB All connectors are clean...

Page 14: ...t or all of the noise goes away the problem is in your ve hicle s ignition or electrical system Here are a few hints to help you re duce or eliminate such noise Replace old ignition wires with new hig...

Page 15: ...cases and can cause the CB to work improperly Keep the CB away from dust and dirt which can cause premature wear of parts Wipe the CB with a damp cloth occasionally to keep it looking new Do not use...

Page 16: ...e sure the power source and CB are both turned off 2 To open the fuse holder push the fuse holder ends together then turn either end counter clockwise and release it 3 If the fuse is blown replace it...

Page 17: ...26 965 to 27 405 MHz Output Power 4 Watts FCC Maximum Type of Modulation AM Double Sideband Full Carrier Modulation Modulation Capability 90 Spurious Emission 60 dB Frequency Tolerance 200 Hz Antenna...

Page 18: ...18 NOTES 21 1599 fm Page 18 Thursday August 5 1999 10 59 AM...

Page 19: ...19 21 1599 fm Page 19 Thursday August 5 1999 10 59 AM...

Page 20: ...e Warranty does not cover transportation costs Nor does it cover a product subjected to misuse or accidental damage EXCEPT AS PROVIDED HEREIN RADIO SHACK MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WA...

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