manualshive.com logo in svg

Radio Shack TRC-442, Owner'S Manual, Page: 14 / 20

Share
Download
Radio Shack TRC-442 Owner'S Manual Download Page 14

14

MAXIMUM RANGE

The maximum range and quality of CB
radio 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 — moun-

tains and tall buildings limit the
range

• Weather conditions

• The number of nearby CBs oper-

ating on the same channel

• Standing wave ratio (SWR) be-

tween the antenna and the CB 

Note: Your CB radio’s transmission
range is generally line-of-sight. 

21-1586.fm  Page 14  Thursday, August 5, 1999  9:50 AM

Summary of Contents for TRC-442

Page 1: ...Cat No 21 1586 OWNER S MANUAL Please read before using this equipment TRC 442 Full Power 40 Channel Mobile CB Radio 21 1586 fm Page 1 Thursday August 5 1999 9 50 AM ...

Page 2: ...tic Modulation Control prevents the transmitter signal from over modulating and distorting Automatic Noise Limiter reduces impulse type noises while receiving Adjustable Squelch reduces noise between transmissions Rotary Tuning Control for conve nient channel selection Large Illuminated Digital Display clearly shows the channel number Base Station Capability lets you use the transceiver as a base ...

Page 3: ... open your CB radio s case Never change or replace anything in your CB radio Your CB radio might cause TV or ra dio interference even when it is oper ating properly To determine whether your CB radio is causing the interfer ence turn off your CB If the interfer ence goes away your CB radio is causing it Try to eliminate the interfer ence by Moving your CB radio away from the receiver Contacting yo...

Page 4: ...wer 8 Using the CB as a Base Station 9 Operation 10 Turning On the CB and Receiving Transmissions 10 Transmitting 11 CB Operation Tips 12 Common Uses for a CB Radio 12 Business Uses 12 Personal Uses 12 CB Courtesy 12 Using Common 10 Codes 13 Maximum Range 14 Troubleshooting 15 Reducing Noise 16 Care and Maintenance 17 Replacing the Fuse 18 Specifications 19 21 1586 fm Page 4 Thursday August 5 1999...

Page 5: ...ng screws Caution Be careful not to drill into anything behind the mount ing surface 3 Attach the holder at the mounting location using the supplied mount ing screws lockwashers wash ers and nuts MOUNTING THE TRC 442 The most common mounting location for this CB is under a vehicle s dash board However if you use the TRC 442 as a base station you can place it on a desk shelf or table See Using the ...

Page 6: ...itions for the screw holes on the mounting surface 2 In each marked location drill a hole slightly smaller than the sup plied mounting bolts Caution Be careful not to drill into objects behind the mounting surface 3 Attach the bracket to the mounting surface with the supplied mount ing bolts lockwashers washers and nuts Note If you cannot reach behind the mounting surface to attach the nuts on the...

Page 7: ...e it Note If you are using this CB as a base station see Using the CB as a Base Station on Page 9 Selecting an Antenna When deciding on an antenna and where to locate it consider these points The location of the antenna should be as high as possible The antenna and antenna cable should be as far as possible from sources of electrical noise igni tion systems gauges and so on Your local RadioShack s...

Page 8: ...You can power this CB from your vehi cle s battery or from standard AC pow er with an optional DC power supply For information on using AC power see Using the CB as a Base Station on Page 9 Follow these steps to power the CB from your vehicle s battery 1 Connect the red wire with the in line fuse to a source of voltage that turns on and off with the igni tion switch such as a spare accessory termi...

Page 9: ...ntenna as described in its owner s man ual Warning Use extreme caution when you install or remove a base station CB antenna If the antenna starts to fall let it go It could con tact overhead power lines If the antenna touches the power line 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 yoursel...

Page 10: ...cific channel ro tate CHANNEL clockwise or coun terclockwise until the display shows the desired channel To rapidly move up or down the channels turn CHANNEL only slightly to the left or right 4 Slowly turn SQUELCH clockwise until the hissing sound stops Note If the CB picks up unwanted partial or very weak transmissions turn SQUELCH clockwise to decrease the CB s sensitivity to these signals Turn...

Page 11: ...e from about 2 3 inches away The orange TX indi cator lights Note Do not speak too loudly when transmitting It does not make your signal any stronger and might distort your transmis sion 3 When you finish transmitting re lease PUSH TO TALK The TX indi cator turns off The TRC 442 can now receive transmissions 4 To turn off the CB turn VOLUME counterclockwise until it clicks 21 1586 fm Page 11 Thurs...

Page 12: ... traffic or that you will stop by the store on the way home If you are a two car or more fam ily CB radios are great for com municating with family members while they are in their cars Contact friends or neighbors find out what s happening or plan a get together Ever have car trouble or run out of gas on the highway What an as surance it is to be able to radio for assistance Camping fishing and ot...

Page 13: ...o 10 11 _____ in service 10 12 Stand by 10 13 Report road weather condi tions 10 14 Information 10 15 Message delivered 10 16 Reply to message Code Meaning 10 17 En route 10 18 Urgent 10 19 Contact _____ 10 20 What is your location 10 21 Call _____ by telephone 10 22 Cancel last message 10 23 Arrived at the scene 10 24 Assignment complete 10 25 Meet _____ 10 26 Estimated time of arrival is _____ 1...

Page 14: ...g location the higher the antenna the better the sig nal s range The surrounding terrain moun tains and tall buildings limit the range Weather conditions The number of nearby CBs oper ating on the same channel Standing wave ratio SWR be tween the antenna and the CB Note Your CB radio s transmission range is generally line of sight 21 1586 fm Page 14 Thursday August 5 1999 9 50 AM ...

Page 15: ...d the CB Trouble with transmission The CB is turned on VOLUME is turned up The microphone is securely connected to the CB All connectors are clean and tightened You are fully pressing PUSH TO TALK The antenna cable is securely connected to both the antenna and the CB No channel selection You are not pressing PUSH TO TALK You cannot change channels when PUSH TO TALK is pressed CB does not work at a...

Page 16: ...lectrical system Here are a few hints to help you re duce or eliminate such noise Make all CB power and antenna wires as short as possible Route the power wires away from the antenna wires Be sure that the chassis ground connection is secure Replace old ignition wires with new high voltage noise suppres sion wires Install noise suppressors on your spark plugs or install new spark plugs that have b...

Page 17: ...remature wear of parts Handle the CB gently and carefully Dropping it can damage circuit boards and cases and can cause the CB to work improperly Wipe the CB with a damp cloth occasionally to keep it looking new Do not use harsh chemicals cleaning solvents or strong detergents to clean the CB Modifying or tampering with the CB s internal components can cause a malfunction and might invalidate the ...

Page 18: ...fuse only with another fuse of the same type and rating Follow these steps to replace the fuse 1 Make sure the power source and CB are both off 2 Holding the fuse holder by both ends push the ends together twist one end counterclockwise then pull them apart 3 If the fuse is blown replace it 4 To close the fuse holder align the tabs and slots at the ends and push the fuse holder ends together Then ...

Page 19: ...Tolerance 0 005 Output Power 4 Watts Maximum Spurious Emission 60 dB Type of Modulation A3 Modulation Capability 90 Antenna Impedance 50 Ohm GENERAL Power Requirements 13 8 Volts DC Negative Ground 120 V AC 60 Hz using an optional power supply Cat No 22 504 Dimensions HWD 15 8 51 2 67 8 inches 41 5 140 175 mm Weight 26 4 oz 750 g Included Accessories Microphone Holder Mounting Hardware Specificati...

Page 20: ...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 the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts and products and products o...

Reviews:

No comments