Radio Shack TRC-488 owner manual Operation, Setting Squelch, Using Automatic Noise Limiting

21-1585.fm Page 10 Thursday, August 5, 1999 9:39 AM

OPERATION

SETTING SQUELCH

Caution: Do not attempt to use your CB without first connecting it to an an- tenna.

1.Turn VOLUME clockwise until it clicks to turn on the CB, then set it to about halfway between the min- imum and maximum settings. The CB tunes to the last-selected channel.

USING AUTOMATIC NOISE LIMITING

If you hear low-level popping noises while receiving transmissions, slide ANL/OFF to ANL to turn on the auto- matic noise limiting circuit. Otherwise, leave ANL/OFF set to OFF (see “Re- ducing Noise” on Page 16).

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2.Turn SQUELCH fully counterclock- wise. You hear background noise and the green BUSY LED lights.

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3.Adjust VOLUME to a comfortable setting.

4.Turn SQUELCH clockwise just until the background noise stops.

Note: To receive weaker transmis- sions, turn SQUELCH counter- clockwise.

LISTENING TO

WEATHER

BROADCASTS

The FCC (Federal Communications Commission) has allocated 11 chan- nels for use by the National Oceano- graphic and Atmospheric Admin- istration (NOAA). NOAA broadcasts your local forecast and regional weath- er information on one or more of these channels in your area.

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