21-1709.fm Page 7 Monday, January 29, 2001 10:29 AM

CONNECTING VEHICLE BATTERY POWER

Follow these steps to connect the CB to vehicle battery power.

To Chassis Ground (black)

To ACC Power (red)

1.Connect the red wire (with the in- line fuse holder) on the back of the CB to a terminal in your vehicle’s fuse box that has power only when the ignition is in the ACC (acces- sory) or ON position.

2.Connect the black ground wire to a metal part of the vehicle’s frame (chassis ground).

Caution: Do not connect the black wire to a non-metallic (plastic) part, or to any part insulated from the ve- hicle’s chassis by a non-metallic part.

CONNECTING AN EXTERNAL SPEAKER

You can connect an optional external speaker to the CB. Use an 8-ohm speaker with a 1/8-inch (3.5-mm) plug. Insert the speaker’s plug into the CB’s EXT. SP. jack. Your local RadioShack store carries a wide selection of suitable speakers.

USING THE CB AS A BASE STATION

Although this CB is designed mainly for mobile use, you can also use it as a base station with an AC power source. For base station installation, you need these items.

a 12-volt DC power supply that can supply at least 1.5 amps

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 in- structions included with the power supply.

base station antenna

coaxial antenna cable and connec- tors

Note: Your local RadioShack store car- ries a wide selection of base station an- tennas, coaxial antenna cable, and connectors. In addition, you can choose from a selection of suitable base station power supplies.

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Radio Shack TRC-519 owner manual Connecting AN External Speaker, Using the CB AS a Base Station

TRC-519 specifications

The Radio Shack TRC-519, released in the 1980s, is notable for its dual functionality, serving as both a base station and a handheld CB radio. This versatile piece of technology was designed for enthusiasts and everyday users alike, delivering reliable communication in an era when citizen band (CB) radios were gaining popularity.

One of the key features of the TRC-519 is its 40-channel capability, allowing users to access a wide range of frequencies. This flexibility was crucial for communication across different regions, making it a popular choice among truckers and road travelers who needed constant connectivity. The unit also features a good quality built-in speaker and a high-sensitivity microphone, ensuring clear and effective communication.

The TRC-519 operates on the AM modulation, a standard for many CB radios during that period. This technology provided users with a strong and reliable audio signal. Additionally, the radio is designed with an instant channel selection feature, allowing users to quickly switch frequencies without delay. This is particularly useful in dynamic situations where swift communication is essential.

Another distinguishing characteristic of the TRC-519 is its robust construction, which contributes to its durability. The radio's design features a compact form factor and a user-friendly interface, making it suitable for both novice and experienced users. The knobs and buttons are intuitively placed, ensuring ease of use even in demanding environments.

The radio is powered by a standard 12-volt system, which is common for automotive use, making it easy to integrate into vehicles. Its versatility extends to both mobile and stationary use, providing users the flexibility to communicate from various locations.

Overall, the Radio Shack TRC-519 combines essential features, rugged design, and practical technology, making it a reliable choice for those in need of effective communication. Whether for leisure, work, or emergency situations, the TRC-519 represents an important chapter in the history of radio technology, paving the way for modern communication devices. With its timeless functionality, it remains a sought-after item among vintage technology enthusiasts and collectors today.