Radio Shack TRC-504, Owner'S Manual

Page 1: ...Cat No 21 1704 OWNER S MANUAL Please read before using this equipment TRC 504 40 Channel Mobile CB Radio with On Mic Channel Selector 21 1704 fm Page 1 Thursday August 5 1999 1 20 PM...

Page 2: ...lt In PA Public Address Amplifier lets you use your CB as a public ad dress system when you add an optional PA speaker Backlit Controls help you easily find the right control when you use the CB at ni...

Page 3: ...Never open your CB radio s case Never change or replace anything in your CB radio Your CB radio might cause TV or radio interference even when it is operating properly To determine whether your CB ra...

Page 4: ...tation 9 Operation 11 Receiving Transmissions and Adjusting Squelch 11 Transmitting 12 Selecting the Emergency Channel 12 Using the PA Amplifier 12 Using the Monitor Feature 13 Operational Hints 14 Co...

Page 5: ...3 Attach the holder at the mounting location using the supplied machine screws spring washers plain wash ers and nuts Note If you cannot reach behind the mounting surface to attach the nuts on the ma...

Page 6: ...ill into objects behind the mounting sur face 3 Mount the bracket to the mounting surface with the supplied 5 mm bolts spring washers plain wash ers and nuts Note If you cannot reach behind the mounti...

Page 7: ...produce extreme heat To take advantage of your radio s maxi mum range adjust the antenna s Stand ing Wave Ratio SWR using an SWR meter not supplied Follow the instructions supplied with the SWR meter...

Page 8: ...dis connects Connecting a PA Speaker The PA speaker should have an impedance of 8 ohms be able to handle at least 5 watts of power the RadioShack Power horn series speakers meet this requirement have...

Page 9: ...NG THE TRANSCEIVER AS A BASE STATION Although this transceiver is designed mainly for mobile use you can also use it as a base station with an AC power source For base station installation you need th...

Page 10: ...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 2 Connect the antenna to ANTENNA on the...

Page 11: ...an emergency channel 6 Rotate the channel selector or repeatedly press or hold down UP or DOWN on the microphone until the display shows the desired chan nel 7 Adjust VOLUME to a comfortable lis tenin...

Page 12: ...ed for motorist assistance and for reporting emergency information about accidents hazardous road condi tions and so on Always give emergen cy messages priority on Channel 9 or Channel 19 To select th...

Page 13: ...acoustic feedback the speaker should be at least 6 feet from the CB If you experience feed back avoid keying the microphone until you have moved the speaker away from the CB 4 To turn off the PA ampl...

Page 14: ...ooking back at camp Business Uses For security officers a CB is more than a convenience it is a must for both safety and efficiency Truck drivers and delivery personnel can learn road and traffic cond...

Page 15: ...0 4 Message received and under stood 10 5 Relay information to _____ 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 servic...

Page 16: ...ing location the higher the antenna the better the signal s range The surrounding terrain moun tains and tall buildings limit the range Weather conditions The number of nearby radios oper ating on th...

Page 17: ...ing Turn transceiver power on Antenna connected Secure connections All connections free of corrosion Clean and tighten Microphone connector loose Firmly press micro phone connector into jack Microphon...

Page 18: ...not work Connect a PA speaker Secure connections Be sure PA MON CB is set o PA Adjust VOLUME Sound is distorted Adjust RF GAIN Adjust VOLUME Symptom Check Try 21 1704 fm Page 18 Thursday August 5 199...

Page 19: ...system Here are a few hints to help you reduce 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 chass...

Page 20: ...the CB in normal temperature environments Tempera ture extremes can shorten the life of electronic devices and distort or melt plastic parts Keep the CB away from dust and dirt which can cause prematu...

Page 21: ...ed here Doing so might damage your CB Follow these steps to replace the fuse 1 Make sure the power source and CB are both off 2 Hold the fuse holder by both ends push the ends together twist one end c...

Page 22: ...erage All 40 CB Channels Class D 26 965 27 405 MHz Frequency Tolerance 300 Hz Carrier Power at No Modulation 3 7 Watts Spurious Emission 67 dB Current Drain at No Modulation 1100 mA Modulation Frequen...

Page 23: ...16 83 8 inches 42 141 213 mm Weight 2 lb 3 oz 1 kg Included Accessories Microphone Hanger Mounting Bracket Specifications are typical individual units might vary Specifications are subject to change...

Page 24: ...ng 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...