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Radio Shack TRC-446 Owner's Manual

Radioshack marine radio user manual.
21-1574.fm Page 1 Thursday, May 13, 1999 4:03 PM
Cat. No. 21-1574
OWNER'S MANUAL
Please read before using this equipment.
TRC-446
Deluxe 4 Watt 40-Channel
Mobile CB Radio
with Weather Alert and ACE

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   Summary of Contents for Radio Shack TRC-446

  • Page 1

    21-1574.fm Page 1 Thursday, May 13, 1999 4:03 PM Cat. No. 21-1574 OWNER’S MANUAL Please read before using this equipment. TRC-446 Deluxe 4 Watt 40-Channel Mobile CB Radio with Weather Alert and ACE...

  • Page 2

    21-1574.fm Page 2 Thursday, May 13, 1999 4:03 PM FEATURES Your RadioShack TRC-446 Deluxe 40- Channel Mobile CB Radio with Weather Alert is a high performance CB that also lets you tune to local and national weather service broadcasts. This CB is perfect for recreational, business, or emergency use.

  • Page 3

    21-1574.fm Page 3 Thursday, May 13, 1999 4:03 PM Noise Blanking — reduces the noise occasionally generated by nearby elec- trical motors or automotive ignition sys- tems. CB/WX/PA Switch — lets you quickly select among normal CB operation, weather mode, or public address mode. RX/TX Indicator —...

  • Page 4: Table Of Contents

    21-1574.fm Page 4 Thursday, May 13, 1999 4:03 PM CONTENTS Installation ... 5 Mounting the TRC-446 ... 5 Connecting the Microphone ... 6 Installing an Antenna ... 7 Selecting an Antenna ... 7 Connecting an Antenna ... 7 Using Vehicle Battery Power ... 7 Using the CB as a Base Station ...

  • Page 5: Installation, Mounting The Trc-446

    The most common mounting location for this CB is under a vehicle’s dashboard. If you use the TRC-446 as a base sta- tion, you can place it on a desk, shelf, or table (See “Using the CB as a Base Sta- tion”...

  • Page 6: Connecting The Microphone

    CONNECTING THE MICROPHONE 1. Align the slot on the top of the microphone plug with the ridge CAT NO.: 21-1574 TRC-446 FCC ID: AAO21-1574 CUSTOM MANUFACTURED IN THAILAND A DIVISION OF TANDY CORPORATION FORT WORTH, TEXAS 76102 0000001 SERIAL NO.:...

  • Page 7: Installing An Antenna, Selecting An Antenna, Connecting An Antenna, Using Vehicle Battery Power

    21-1574.fm Page 7 Thursday, May 13, 1999 4:03 PM INSTALLING AN ANTENNA Caution: To prevent damage to your CB, do not attempt to transmit without an antenna attached. Selecting an Antenna When you decide on an antenna and its location, consider these points: •...

  • Page 8: Using The Cb As A Base Station, Connecting Optional External Speakers, External Cb Speaker

    21-1574.fm Page 8 Thursday, May 13, 1999 4:03 PM USING THE CB AS A BASE STATION Although this CB is designed for mobile use, you can also use it as a base sta- tion. For base-station installation, you need a regulated 12-volt DC power sup- ply, such as Cat.

  • Page 9: Public Address Speaker, Adjusting The Standing Wave Ratio

    21-1574.fm Page 9 Thursday, May 13, 1999 4:03 PM Public Address Speaker To connect a PA speaker to the CB, use an 8-ohm speaker capable of handling 5 or more watts of power and equipped with an -inch connector on the cable. Contact your local RadioShack store for a selection of suitable speakers.

  • Page 10: Standing Wave Ratio Guidelines, Standing Wave Ratio Performance

    21-1574.fm Page 10 Thursday, May 13, 1999 4:03 PM STANDING WAVE RATIO GUIDELINES The ideal standing wave ratio (SWR) is 1:1, or a meter reading of 1 on the SWR meter's top scale. This reading, however, can only be obtained under laboratory con- ditions.

  • Page 11: A Quick Look At The Controls

    21-1574.fm Page 11 Thursday, May 13, 1999 4:03 PM A QUICK LOOK AT THE CONTROLS Channel 9-NOR- Channel 19 Switch RF Meter/SWR/ Calibrate Switch SWR Meter RF Meter Hand-Held MIC with Squelch Channel Up/Down Control Control Volume / Power Switch CB/Weather Alert/Pub- lic Address Switch Noise Blanking On/Off...

  • Page 12: Operation

    8. If you hear low-level popping-type coun- noise, set NB/OFF the noise blanking circuit. 9. To improve communication quality, ACE/OFF the ACE circuit. 10. To turn off the TRC-446, turn counterclockwise until you VOLUME hear it click. CH-9 reporting clockwise RF GAIN...

  • Page 13: Changing Channels Using The Controls On The Microphone, Listening To Weather Broadcasts

    3. When finish transmitting, release the microphone talk button. TX/RX turns green. The TRC-446 can now receive transmissions. 4. To turn off the TRC-446, turn counterclockwise until you VOLUME hear it click. LISTENING TO WEATHER BROADCASTS until you...

  • Page 14: Weather Alert, Using The Public Address Function

    Weather Alert In the event of severe weather condi- tions, the National Weather Service broadcasts a special 1050 Hz tone. The TRC-446 sounds this tone if it is turned on and is set to CB/WX/PA The tone does not sound if the radio is set to .

  • Page 15: Cb Operation Tips, Business Uses, Personal Uses, Cb Courtesy

    21-1574.fm Page 15 Thursday, May 13, 1999 4:03 PM CB OPERATION TIPS Like most activities, CB radio users have customs and courtesies. The following tips will help you get the most enjoyment out of your CB. TYPICAL USES FOR A CB RADIO Business Uses •...

  • Page 16: Using Common 10-codes

    21-1574.fm Page 16 Thursday, May 13, 1999 4:03 PM USING COMMON 10-CODES Citizen's band operators have largely adopted the following 10-codes for stan- dard questions and answers. These codes permit faster and more precise communication in noisy areas. This ta- ble lists codes adopted by the Associat- Public-Safety Communications...

  • Page 17: Maximum Range

    21-1574.fm Page 17 Thursday, May 13, 1999 4:03 PM MAXIMUM RANGE The maximum range and quality of CB transmissions vary depending on the fol- lowing typical conditions: • The type and quality of antenna used. • The height of the antenna's mount- ing location —...

  • Page 18: Troubleshooting

    21-1574.fm Page 18 Thursday, May 13, 1999 4:03 PM TROUBLESHOOTING If your CB is not working as it should, follow the suggestions below to see if you can eliminate the problem. If the problem persists, take the CB to your local RadioShack store for assistance.

  • Page 19: Care And Maintenance

    21-1574.fm Page 19 Thursday, May 13, 1999 4:03 PM CARE AND MAINTENANCE Your RadioShack TRC-446 Deluxe 40-Channel Mobile CB is an example of supe- rior design and craftsmanship. The following suggestions will help you care for your TRC-446 so you can enjoy it for years.

  • Page 20

    21-1574.fm Page 20 Thursday, May 13, 1999 4:03 PM REPLACING THE FUSES The TRC-446's 2-amp fuses help pro- tect your CB from power surges and short circuits. • If the red wire's fuse is blown , replace it with a 2-amp, fast-acting glass fuse, such as Cat.

  • Page 21: Specifications

    21-1574.fm Page 21 Thursday, May 13, 1999 4:03 PM SPECIFICATIONS GENERAL Channels ... 40 Channels Frequency Range ... 26.965 MHz to 27.405 MHz Power Requirements ..13.8V DC (12–16 Volts DC, Negative Ground) Dimensions (HWD) ..2 × 7 ×...

  • Page 22

    21-1574.fm Page 22 Thursday, May 13, 1999 4:03 PM PUBLIC ADDRESS Output Power ... 4.2 Watts (Maximum) Current Drain (at maximum power) ... 1.2 Amps WEATHER RADIO Frequency Coverage (MHz) ... 162.400 Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

  • Page 23

    21-1574.fm Page 23 Thursday, May 13, 1999 4:03 PM NOTES...

  • Page 24

    21-1574.fm Page 24 Thursday, May 13, 1999 4:03 PM Limited Ninety-Day Warranty This product is warranted by RadioShack against manufacturing defects in material and workman- ship under normal use for ninety (90) days from the date of purchase from RadioShack company- owned stores and authorized RadioShack franchisees and dealers.

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