TRC-499 (210-1599) Installation Faxback Doc. # 14614 MOUNTING THE MICROPHONE HOLDER Using a Phillips screwdriver and the supplied small screws and small metal washers, attach the supplied microphone holder horizontally or vertically to either side of the CB. CONNECTING THE MICROPHONE 1. Insert the microphone's plug into the microphone jack until it clicks. CAUTION: The microphone's plug fits only one way into the microphone jack. Do not force it. 2. Slide the microphone on the microphone holder. To disconnect the microphone cable, squeeze the bottom of the microphone's plug, then gently pull it out. CAUTION: Never pull on the microphone cable. MOUNTING THE TRC-499 The most common mounting location for this CB is under a vehicles dashboard. However, if you use the TRC-499 as a base station, you can place it on a desk, shelf, or table (see "Using the CB as a Base Station"). If you are mounting the CB in a vehicle, choose a location where: You can easily reach the CB. Wires and cables will not interfere with the vehicle's pedals or other moving parts. All wires and cables will reach their connection points. CAUTIONS: The TRC-499 is designed to work in a vehicle that has a 12-volt DC, negative-ground electrical system. Most vehicles have this type of system. If you are not sure about your vehicle, check with your vehicle dealer. If you use the TRC-499 in a vehicle, mount it securely to avoid damage to the CB or vehicle during sudden starts or stops. Follow these steps to mount the CB using the supplied hardware. 1. Using the mounting bracket as a template, mark the positions for the screw holes. 2. In each marked location, drill a hole slightly smaller than the supplied large screws. CAUTION: Be careful not to drill into anything behind the mounting surface. 3. Using a Phillips screwdriver, attach the mounting bracket to the mounting surface with the large screws and supplied lock washers. 4. Attach the CB to the mounting bracket using the rubber washers and mounting knobs. INSTALLING THE ANTENNA CAUTION: To prevent damage to the CB, you must connect an antenna to the CB before you operate it. Selecting an Antenna When deciding on a mobile or base-station antenna and its location consider these points. The location of the antenna should be as high as possible. The antenna and antenna cable should be as far as possible from the sources of electrical noise (ignition systems, gauges, etc.). The antenna should be vertical for the best performance. Your local Radio Shack store sells a variety of CB antennas for both mobile and base-station use. Choose the one that best meets your needs. Connecting an Antenna Once you choose an antenna, follow the mounting instructions supplied with it. Then route the antenna cable to the ANTENNA jack on the back of the CB. CAUTIONS: Do not run the cable over sharp edges or moving parts. Do not run the cable next to power cables or other CB antenna cables. Do not run cable through a vehicle's engine compartment or other areas that produce extreme heat. USING VEHICLE BATTERY POWER You can power this CB from your vehicle's battery or from standard AC power with an optional DC power supply. For information on using AC power, see "Using the CB as a Base Station." Follow these steps to power the CB from your vehicle's battery. 1. Connect the CB's black wire to your vehicle's battery's negative (-) terminal or to a metal part of the vehicles frame that is not insulated from the frame by a plastic part. 2. Connect the CB's red wire, with 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 fuse box. USING THE CB AS A BASE STATION Although this CB is designed for mobile use, you can use it as a base station. To do so, you need the following items: 12-volt DC power supply (such as Cat. No. 22-504) CAUTION: Most 12-volt DC power supplies plug into a standard AC outlet to produce DC power. Before connecting your CB to a 12-volt DC power supply, read and follow the instructions provided with the power supply. Base station antenna (such as Cat. No. 21-967) Coaxial antenna cable and connectors NOTE: Your local Radio Shack store carries power supplied, antennas, coaxial antenna cable and connectors. Follow these steps to install antenna. 1. Mount the base station antenna as described in its owner's manual. WARNING: Use extreme caution when you install or remove a base station CB antenna. If the antenna starts to fall, let it go! It could contact over head power lines. If the antenna touches the power line, contact with the antenna, mast, cable, or guy wires can cause electrocution and death. Call the power company to remove the antenna. Do NOT attempt to do so yourself. 2. Connect the antenna's cable to the ANTENNA jack on the back of the CB. 3. Connect the CB's black wire to the DC power supply's negative (-) terminal. 4. Connect the CB's red wire, with in-line fuse, to the DC power supply's positive (+) terminal. 5. Plug the DC power supply into a standard AC outlet. CONNECTING AN OPTIONAL EXTERNAL SPEAKER To make the CB easier to hear in noisy environments, you can connect it to an external CB speaker. Use an 8-ohm speaker capable of handling 3 to 5 watts of power (such as Radio Shacks Cat. No. 21-549). The speaker's cable must have a 1/8-inch plug. Simply plug the speaker cable into the CB's ext 8 jack. NOTE: When you connect an external speaker, the CB's internal speaker automatically disconnects. (/all-04/20/95)