21-1709.fm Page 9 Monday, January 29, 2001 10:29 AM

OPERATION

Before you use your CB, you should know how to use it effectively and cour- teously. “Common Uses for a CB” on Page 12 contains information that will help you get more enjoyment from your CB.

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

RECEIVING TRANSMISSIONS AND SETTING SQUELCH

1.Rotate VOLUME fully counterclock- wise

2.Set CB/WX to CB.

3.Turn SQUELCH fully counterclock- wise.

4. Turn RF GAIN fully clockwise.

5.Turn on the CB by turning OFF/VOL- UME clockwise. The display lights and the channel appears.

Note: The CB sounds an alert if it detects a weather alert signal (see “Using Weather Alert/SAME” on Page 11).

6.Rotate VOLUME clockwise until you hear a hissing sound.

7.Slowly turn SQUELCH clockwise until the hissing sound stops.

Note: To receive very weak signals, turn SQUELCH counterclockwise. You hear noise between transmis- sions, but you can also hear weak transmissions (those not strong enough to break through a higher squelch setting). If the CB picks up unwanted, weak transmissions, turn SQUELCH clockwise to reduce the CB’s sensitivity to these signals.

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Radio Shack TRC-519 owner manual Operation, Receiving Transmissions and Setting Squelch
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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.
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