20-520.fm Page 6 Wednesday, August 4, 1999 3:06 PM

CONTENTS

 

Preparation

8

Power Sources

8

Using the Rechargeable Battery Pack

8

Using Standard AC Power

9

Using Vehicle Battery Power

10

Connecting the Antenna

11

Connecting an Optional Antenna

12

Connecting an Earphone/Headphones

13

Listening Safely

13

Traffic Safety

13

Connecting an Extension Speaker

14

Attaching the Belt Clip

14

Understanding Your Scanner

15

A Look at the Keypad

15

A Look at the Display

17

Understanding Banks

19

Channel Storage Banks

19

Service Banks

19

Understanding Trunking

19

Operation

20

Turning On the Scanner and Setting Squelch ....

20

Storing Known Frequencies into Channels

21

Limit Search

22

Scanning Service Banks

23

Scanning the Stored Channels

25

Manually Selecting a Channel

25

Deleting a Stored Frequency

25

Special Features

26

Delay

26

Turning Channel-Storage Banks On and Off

27

Locking Out Channels and Frequencies

27

Locking Out Channels

27

Locking Out Frequencies

28

Priority

28

Using the Keylock

30

Using the Display Backlight

30

Changing Search Speeds

30

Battery Save

31

Skipping Data Signals

31

6

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Radio Shack PRO-90 owner manual Contents

PRO-90 specifications

The Radio Shack PRO-90 is a compact yet powerful handheld scanner that has garnered attention from both hobbyists and serious enthusiasts of radio communications. Introduced as a versatile scanner, the PRO-90 is designed for ease of use while providing a myriad of features that enhance the scanning experience.

One of the key characteristics of the PRO-90 is its advanced scanning technology. The unit boasts a 100-channel memory, allowing users to store and quickly access frequently used frequencies. The scanner supports a wide range of frequency bands, making it suitable for monitoring everything from police and fire frequencies to aviation and marine channels. With programmable scanning capabilities, users can effortlessly create their own scanning routines tailored to their interests.

The PRO-90 also features a fast scanning rate, with the ability to scan across frequencies at remarkable speeds. This minimizes the wait time for users who want to listen to different bands or channels, ensuring they never miss critical transmissions. Additionally, the scanner includes a dedicated "Hold" function that allows users to temporarily pause on a specific frequency for extended listening.

In terms of ease of use, the PRO-90 is designed with an intuitive interface. The scanner includes a backlit LCD display, making it easy to read in low-light environments. The keypad is arranged logically, enabling quick access to functions such as volume, squelch, and memory management. Users can also program the scanner via PC, thanks to its compatibility with programming software, making it easier to manage and transfer frequency lists.

Another standout feature of the PRO-90 is its ability to decode various digital signals. This includes some types of Motorola, GE, and other digital technologies, which are commonly used in modern communications. This capability extends its usefulness beyond traditional analog signals, making the scanner relevant in today’s digital landscape.

Moreover, the Radio Shack PRO-90 is designed with portability in mind. Its compact size and lightweight construction make it an ideal companion for outdoor activities, road trips, or simply enjoying the local communications landscape. Whether you’re a seasoned radio enthusiast or a newcomer to the field, the PRO-90 provides a rich set of features, advanced technology, and user-oriented design that enhance the scanning experience. It stands out as a worthy tool for anyone looking to immerse themselves in the world of radio communication.