21-1574.fm Page 13 Thursday, May 13, 1999 4:03 PM

Changing Channels Using the Controls on the Microphone

To tune to the next higher or lower chan- nel, press UP or DOWN on the micro- phone.

To quickly change channels in either di- rection, hold down UP or DOWN until you reach the desired channel.

To prevent accidentally changing the channel with UP or DOWN, press LOCK. Press LOCK again to restore the UP or DOWN operation.

TRANSMITTING

Note: We recommend you try receiving transmissions before you transmit.

1.Follow Steps 1–9 under “Turning On the CB and Receiving Transmis- sions” on Page 12.

2.Hold down the microphone's talk button and speak into the micro- phone in a normal voice from about 2–3 inches away. TX/RX turns red, and the SWR/RF/signal meter indi- cates the strength of your transmis- sion.

Note: Do not speak too loudly when transmitting. It does not make your signal any stronger, and might dis- tort your transmission.

3.When you finish transmitting, release the microphone talk button. TX/RX turns green. The TRC-446 can now receive transmissions.

4.To turn off the TRC-446, turn OFF/ VOLUME counterclockwise until you hear it click.

LISTENING TO WEATHER BROADCASTS

The TRC-446 can receive seven pre- programmed weather channels which have been allocated by the Federal Communications Commission (FCC) for use by the National Oceanographic and Atmospheric Administration (NOAA). NOAA broadcasts your local forecast and regional weather information on one or more of these channels in your area.

Your TRC-446 receives these weather service frequencies:

Frequency

Channel

(MHz)

 

 

 

 

 

162.400

WX2

 

 

162.425

WX4

 

 

162.450

WX5

 

 

162.475

WX3

 

 

162.500

WX6

 

 

162.525

WX7

 

 

162.550

WX1

 

 

13

Page 12 Page 14
Page 13
Image 13
Radio Shack TRC-446 Transmitting, Listening to Weather Broadcasts, Changing Channels Using the Controls on the Microphone
Page 12 Page 14

TRC-446 specifications

The Radio Shack TRC-446 is a classic handheld CB (Citizens Band) radio, well-regarded in the realm of two-way communication devices. Released in the 1980s, it has become a sought-after collector's item due to its impressive features, build quality, and ease of use.

One of the defining characteristics of the TRC-446 is its compact and portable design. Weighing less than many of its contemporaries, it fits comfortably in the hand and is lightweight enough for prolonged use. This makes it an excellent choice for outdoor enthusiasts, truck drivers, and hobbyists alike. Its robust construction ensures that it can withstand the rigors of daily use.

In terms of technology, the TRC-446 operates on the standard 40 channels designated for CB radios in the United States, allowing users to communicate over short distances. It incorporates AM modulation, which was the primary mode of communication for CB radios, ensuring compatibility with a wide range of other devices. The operating range can reach several miles, depending on the terrain, making it ideal for both urban and rural communication.

The user interface is designed for simplicity, featuring a clear display with channel indicators, an easy-to-access volume control, and a squelch knob to eliminate background noise. The push-to-talk button is conveniently placed, providing seamless access during conversations. Additionally, the TRC-446 comes equipped with a built-in microphone, making voice transmission effortless.

Another noteworthy feature is the external antenna jack, which allows for improved communication range. Users can connect various antennas, enhancing their ability to send and receive signals in challenging environments.

The TRC-446 also supports compatibility with additional accessories, such as handsets and speakers, allowing for a more customizable communication experience. The battery life is decent for a handheld device, with options for both rechargeable and disposable batteries, making it versatile for different use cases.

In conclusion, the Radio Shack TRC-446 represents a significant piece of communication technology from the late 20th century. With its reliable performance, user-friendly design, and compatibility with a range of accessories, it remains a cherished model among CB radio enthusiasts. Whether for nostalgia or practical use, the TRC-446 stands out as a testament to the enduring appeal of two-way radio communication.
Top Page Image Contents