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Resumen del manual
21-1573 OWNER’S MANUAL Please read before using this equipment. TRC-445 Deluxe 40-Channel Mobile CB Radio with Weather Alert 21-1573.fm Page 2 Thursday, August 5, 1999 9:22 AM FEATURES Your RadioShack TRC-445 Deluxe 40Channel 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. You can call other people who have CBs at home, in their vehicles, or at camp sites. You can also connect optional equipment to your CB, such as an external speaker to create a PA system, or a DC power supply and base station antenna to set up a base station in your home. Your CB has these features: 7-Channel WX Band Receiver — lets you tune to seven national weather service frequencies so you can hear local weather conditions and forecasts. Built-In SWR Meter — helps you tune your antenna system to optimize your CB’s performance. PLL (Phase-Locked Loop) Frequency Synthesizer — provides reliable and exact tuning using a precise frequency reference crystal. Two Ceramic Filters — provide superi or channel selectivity and prevent adjacent-channel interference. Hysteresis Squelch Circuit — com pensates for fading signals and eliminates signal chopping during reception. Rotary Tuning Control — provides maximum convenience when selecting channels. LED Channel Display — lets you see the selected channel (1–40). Last-Channel Memory — the radio “remembers” the channel you previously tuned to when you turn on the radio. RF Gain Control — lets you adjust reception to match the strength of the received signal. Lighted SWR/RF/Signal Meter — lets you see the incoming and outgoing signal strength as well as the standing wave ratio (SWR). Noise Blanking — lets you reduce the noise sometimes caused by nearby electrical equipment such as motors or automotive ignition systems. Adjustable Brightness — lets you set the meter’s backlight and the LED channel display to dim or bright. CH-9/NOR/CH-19 Switch — lets you quickly tune to Channel 9 or Channel 19 in an emergency without adjusting the rotary tuning control. CB/WX/PA Switch — lets you quickly select the normal CB function, weather mode, or public address mode. © 1997 Tandy Corporation. All Rights Reserved. RadioShack is a registered trademark used by Tandy Corporation. 2 21-1573.fm Page 3 Thursday, August 5, 1999 9:22 AM WX/Alert Indicator — shows the CB is ready to receive a weather alert signal. RX/TX Indicator — shows whether the CB is transmitting or receiving. S/RF/SWR/CAL Switch — lets you quickly select the display for the RF/signal meter (radio input/output signal power strength, standing wave ratio of the antenna, or SWR calibration). Universal Mounting Bracket — lets you mount your CB securely in your vehicle or on a desk or table in your home. Note: To use this CB, you need a mobile or base station antenna. Your local RadioShack store has a wide variety of antennas. For more information, see “Installing an Antenna” on Page 6. We recommend you record your CB’s serial number here. The number is on the CB’s back panel. Serial Number___________ FCC INFORMATION The Federal Communications Commission (FCC) does not require you to have a license to operate this CB. However, the FCC does require that you read and know Part 95 of FCC Rules. These rules apply to the operation of a Class D CB. We have provided a copy of these regulations with your CB. Warning: Do not open your CB to make any internal adjustments. Any internal adjustments can be made only by an authorized service technician. Internal adjustments and/or modifications can lead to illegal operation as defined by Part 95 of FCC Rules. Such illegal operation can lead to very serious consequences. To be safe and sure: • Never open your CB’s case. • Never modify your CB. Your CB might cause TV or radio interference even when it is operating properly. To determine whether your CB is causing the interference, turn off your CB. If the interference goes away, your CB is causing it. Try to eliminate the interference by: • Moving your CB away from the receiver • Contacting your local RadioShack store for help If you cannot eliminate the interference, the FCC requires that you stop using your CB. 3 21-1573.fm Page 4 Thursday, August 5, 1999 9:22 AM CONTENTS Installation ............................................................................................................... 5 Mounting the Microphone Holder ....................................................................... 5 Mounting the TRC-445 ....................................................................................... 5 Connecting the Microphone ................................................................................ 6 Installing an Antenna .......................................................................................... 6 Selecting an Antenna ...........................................................................