Radio Shack 20-422 owner manual 29-54

Models: 20-422

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This table shows the frequency band ranges displayed by the scanner and the typical usage, frequency coverage, and step for each.

Displayed

 

Frequency Coverage

Step

Frequency

Typical Usage

(MHz)

(kHz)

Band Range

 

 

 

 

 

 

 

 

 

 

 

 

29-54

10-Meter Amateur Radio, VHF

29.000 to 54.000

5.0

 

Lo, 6-Meter Amateur Radio

 

 

 

 

 

 

108-137

Aircraft

108.000 to 136.975

12.5

 

 

 

 

137-144

Government

137.000 to 144.000

5.0

 

 

 

 

144-148

2-Meter Amateur Radio

144.000 to 148.000

5.0

 

 

 

 

148-174

VHF Hi

148.000 to 174.000

5.0

 

 

 

 

406-450

Government, 70-Centimeter

406.000 to 450.000

12.5

 

Amateur Radio

 

 

 

 

 

 

450-470

UHF Lo

450.000 to 470.000

12.5

 

 

 

 

470-512

UHF “T” Band

470.000 to 512.000

12.5

 

 

 

 

Notes:

Your scanner searches at the preset frequency step rate (5 or 12.5 kHz) for each band. You cannot change the frequency step rate.

The scanner displays the nearest 1 kHz step. For example, if you tune to 406.1125, the scanner displays 406.112.

While searching through a band, you might hear a frequency you want to store. You can store any frequency into a monitor memory.

You cannot change or delete any of the frequencies in the frequency bands.

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Radio Shack 20-422 owner manual 29-54

20-422 specifications

The Radio Shack 20-422 is a versatile and compact handheld scanner that has garnered recognition among hobbyists and communication enthusiasts alike. This model is designed to provide users with an easy-to-use interface and advanced scanning capabilities, making it a popular choice for those looking to stay connected with public safety, aviation, and other radio communications.

One of the standout features of the Radio Shack 20-422 is its ability to scan a wide range of frequencies. With coverage from 30 MHz to 900 MHz, it allows users to access a diverse array of radio signals, including AM, FM, and analog transmissions. This broad frequency range ensures that operators can track vital communications from police departments, fire services, and emergency medical teams.

In addition to its expansive scanning capabilities, the 20-422 is equipped with 200 programmable channels. This enables users to store their favorite frequencies for quick access, thus enhancing the overall user experience. The unit is also compatible with commonly used trunking systems, which allows users to monitor communications from trunked radio systems, widely employed by public safety organizations.

The Radio Shack 20-422 comes with a customizable priority scanning feature, which allows users to set specific channels to scan more frequently. This ensures that important communications are not missed, adding a level of efficiency to the scanning process. Moreover, the scanner features a large LCD display that provides users with clear visibility of the frequency and other important information.

From a technological standpoint, the 20-422 is equipped with automatic frequency identification, which simplifies the process of discovering new radio signals. The built-in alert system notifies users when specific transmissions are detected, adding convenience to the scanning routine.

The ergonomic design of the Radio Shack 20-422 enhances ease of use, equipped with a comfortable grip and well-placed buttons for intuitive operation. The scanner is powered by a reliable battery system, ensuring long hours of dynamic scanning capabilities, whether you are in a stationary location or on the move.

In summary, the Radio Shack 20-422 stands out as a powerful tool for anyone interested in radio communications. With its extensive frequency coverage, programmable channels, and user-friendly design, this handheld scanner is perfect for hobbyists, emergency responders, and anyone else looking to stay connected with their community.