Radio Shack TRC-237 owner manual Operation, Receiving Transmissions Adjusting Squelch

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21-1650.fm Page 18

Thursday, August 5, 1999 11:43 AM

OPERATION

Before you use your TRC-237, we recom- mend you read “CB Operation Tips” on Page 21, which contains information to help you use it effectively and courteously.

RECEIVING

TRANSMISSIONS AND

ADJUSTING SQUELCH

1.If you did not connect an external antenna, hold the TRC-237 so the antenna is vertical.

2.Turn on the TRC-237 by turning OFF/ VOLUME clockwise until you hear a click and a hissing sound.

3.Set OUT CH9 CH19 on top of the TRC-237 for the channel you want to tune:

To quickly tune to Channel 9, set it to CH9. 9 flashes on the display.

To quickly tune to Channel 19, set it to CH19. 19 flashes on the dis- play.

To tune to any channel other than Channel 9 or Channel 19, set it to OUT. The previously selected channel number appears on the display.

Note: When you tune a channel, the channel’s number appears or flashes on the display for about 20 seconds then fades, to save battery power. To continuously display the channel number, press and hold DISPLAY on the side of the TRC-237.

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Contents TRC-237 Features PLL Phase-Locked-Loop FrequencyDigit LED Display lets you easily Battery Test Button and Battery IndicaFlexible Antenna with BNC Connector Automatic Noise Limiter ANL CircuitFCC Information Contents Powering the CB Using the Power Jack and ALKALINE/NI-CD SwitchUsing Batteries Fm Page 8 Thursday, August 5, 1999 1143 AM Fm Page 9 Thursday, August 5, 1999 1143 AM Testing the Battery Power Thursday, August 5, 1999 1143 AM Using Vehicle Battery Power Using AC Power Thursday, August 5, 1999 1143 AM Connecting Antenna Connecting an Optional Antenna Thursday, August 5, 1999 1143 AM Receiving Transmissions Adjusting Squelch OperationThursday, August 5, 1999 1143 AM Transmitting CB Operation Tips Common Uses for a CB RadioUsing Common 10-CODES Code MeaningCode Meaning CB Courtesy Maximum RangeTroubleshooting Symptom SuggestionMaintenance Specifications ReceiverLimited Ninety-Day Warranty