Radio Shack TRC-235, 21-1620 owner manual Using Common 10-CODES, Code Meaning

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21-1620.fm Page 21

Thursday, August 5, 1999 11:16 AM

•Camping, fishing, and other sports are more fun with a walkie-talkie. Locate a friend or find out “what’s cooking” back at camp.

USING COMMON 10-CODES

Citizen’s band operators have largely adopted the 10-codes for standard ques- tions and answers. Their use permits fast- er communication and better intelligibility in noisy areas.

This table lists the codes adopted by the Associated Public Safety Communica- tions Officers (APCO).

Code	Meaning


10-1	Cannot understand your mes-
	sage.

10-2	Your signal is good.

10-3	Stop transmitting.

10-4	Message received and under-
	stood.

10-5	Relay information to _________.

10-6	I am busy.

10-7	Out of service.

10-8	In service.

10-9	Repeat last message.

10-10	Negative (No).

10-11	_____________ in service.

10-12	Stand by.

10-13	Report ___________ conditions.

10-14	Information.

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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.