21-1620.fm Page 18

Thursday, August 5, 1999 11:16 AM

3.Turn on the TRC-235 by turning OFF/ VOLUME clockwise until you hear a click and a hissing sound.

Note: You might not hear a hissing sound if CHANNEL is set to B or C and you haven’t installed any crys- tals in channel positions B or C.

4.Adjust OFF/VOLUME to a comfortable listening level.

5.Adjust SQUELCH to cut out the back- ground noise. To do this, wait until there is no signal on the channel. Then slowly turn SQUELCH clock- wise until the background noise stops.

Note: Do not turn SQUELCH too far clockwise because you might also cut out weak signals.

6.To turn off the TRC-235, turn OFF/ VOLUME toward OFF until it clicks.

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Radio Shack 21-1620, TRC-235 owner manual Thursday, August 5, 1999 1116 AM

TRC-235, 21-1620 specifications

The Radio Shack 21-1620, commonly referred to as the TRC-235, is a notable entry in the world of CB radios. Designed to cater to both novice and experienced users, this particular model embodies a blend of functionality, reliability, and user-friendly features.

One of the standout characteristics of the TRC-235 is its compact and portable design, making it an ideal choice for both mobile and stationary applications. The unit is compact enough to fit into tight spaces while still offering a robust set of features that enhance communication capabilities. With a durable construction, it is designed to withstand the rigors of transportation, whether in a vehicle or on a work site.

In terms of performance, the TRC-235 operates on the standard 40 CB channels, providing users with ample options for communication. This capability is essential for those who require clear and constant communication, especially in areas where other forms of communication may fail. Additionally, the radio features an adjustable RF gain control, which allows users to filter out unwanted noise and focus on the transmission quality. This adjustment enables clearer conversations, which is crucial in high-traffic areas.

The Radio Shack 21-1620 also comes equipped with several essential features designed to enhance usability. A built-in built-in speaker ensures clear audio output, while the external mic jack allows for the attachment of an external microphone, improving sound clarity further. The unit’s easy-to-read LED display displays channel and frequency information, helping users navigate through channels effortlessly.

Furthermore, the TRC-235 integrates advanced technology, such as automatic noise limiter circuitry, which significantly reduces background noise for clearer communication. The radio also supports a range of modulation types, including AM, which is standard in CB radios.

For those who appreciate versatility, the TRC-235 allows for seamless integration with other communication equipment, such as antennas and amplifiers, enhancing its performance and range.

In summary, the Radio Shack 21-1620 TRC-235 is a well-rounded CB radio that balances user-friendly features, durable construction, and advanced communication technology. It remains a reliable choice for those seeking effective communication solutions in various environments. Whether for recreational use or professional applications, the TRC-235 stands out as a trusted companion in the CB radio spectrum.