Radio Shack TRC-446 Installing AN Antenna, Using Vehicle Battery Power, Selecting an Antenna

Page 7

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:

•The antenna should be positioned as high as possible.

•The antenna and the antenna cable should be routed as far as possible from any source of electrical noise such as ignition systems, electric gauges, and motors.

Your local RadioShack store sells a vari- ety of CB antennas for both mobile and base-station use. Choose the one that best meets your needs.

Connecting an Antenna

Follow the mounting instructions sup- plied with the antenna you choose. Route the antenna cable to the CB, then thread the PL-259 antenna cable plug into ANTENNA on the back of the CB.

Cautions:

•Do not run the cable over sharp edges or moving parts that might damage it.

•Do not run the cable next to power cables or other CB antenna cables.

•Do not run the cable through a vehi- cle's engine compartment or other areas that produce extreme heat.

USING VEHICLE

BATTERY POWER

You can power this CB from your vehi- cle's battery or from standard AC power with an optional DC power supply. For in- formation on using AC power, see “Using the CB as a Base Station” on Page 8.

Follow these steps to power the CB from your vehicle's battery.

1.Plug the single-connector end of the power cord into POWER 13.8V DC on the CB's back panel.

2.Connect the black wire to your vehi- cle’s negative (–) battery terminal or to a metal part of the vehicle's frame that is not insulated from the frame by a plastic part.

3.Connect the red wire, with its in-line fuse, to a source of voltage that turns on and off with the ignition switch, such as a spare accessory terminal in your vehicle's fuse box. This assures you that power to the CB is turned off when you turn off the ignition.

4.Connect the orange wire, with its in- line fuse, to a source of voltage that supplies constant positive (+) power (regardless of the ignition switches position) or directly to your vehicle's positive (+) battery terminal. This enables the radio to “remember” the last channel you tuned to when you turn the radio back on.

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents TRC-446 Features FCC Information Contents Mounting the Microphone Holder InstallationMounting the TRC-446 Antenna Connecting MicrophoneSelecting an Antenna Installing AN AntennaUsing Vehicle Battery Power Connecting an AntennaConnecting Optional External Speakers Using the CB AS a Base StationExternal CB Speaker Set S/RF/SWR/CAL to SWR Adjusting the Standing Wave RatioPublic Address Speaker Set S/RF/SWR/CAL to CALStanding Wave Ratio Performance Standing Wave Ratio GuidelinesRatio Rating Evaluation Noaa Quick Look AT the ControlsTurning on the CB and Receiving Transmissions OperationFrequency Channel MHz Changing Channels Using the Controls on the MicrophoneTransmitting Listening to Weather BroadcastsWeather Alert Using the Public Address FunctionPersonal Uses CB Operation TipsTypical Uses For a CB Radio Business UsesCode Meaning Using Common 10-CODESReducing Noise Maximum RangeSymptom Check That TroubleshootingCH9/NOR/CH-19 is set to NOR Care and Maintenance Replacing the Fuses General SpecificationsPublic Address Fm Page 23 Thursday, May 13, 1999 403 PM Vised of the Possibility of Such Damages Limited Ninety-Day Warranty
Top Page Image Contents