20-520.fm Page 59 Wednesday, August 4, 1999 3:06 PM

PROBLEM

POSSIBLE

REMEDY

CAUSE

 

 

 

 

 

 

 

 

Poor or no

An antenna is

Make sure an

reception (con-

not connected or

antenna is con-

tinued)

connected incor-

nected to the scan-

 

rectly.

ner.

 

 

 

Error

Programming

Reprogram the fre-

appears.

error.

quency correctly,

 

 

including the deci-

 

 

mal point.

 

 

 

In the scan

Programmed fre-

Avoid programming

mode, the scan-

quencies are the

frequencies listed

ner locks on fre-

same as “birdie”

under “Birdie Fre-

quencies that

frequencies.

quencies” on

have an unclear

 

Page 51 or only lis-

transmission.

 

ten to them manu-

 

 

ally.

 

 

 

Scanner will not

The transmission

Scan another trans-

track a trunked

might not use a

mission.

system.

system that can

 

 

be tracked by

 

 

your scanner.

 

 

 

 

 

The data fre-

Find the data fre-

 

quency is miss-

quency (see “Pro-

 

ing.

gramming Trunked

 

 

Frequencies” on

 

 

Page 34).

 

 

 

 

The system you

Set the scanner to

 

are trying to

receive Type I

 

track is a Type I

trunked frequen-

 

system, and the

cies. See “Scan-

 

scanner is set to

ning Type I and

 

scan Type II sys-

Hybrid Trunked Sys-

 

tems.

tems” on Page 44.

 

 

 

Scanner will not

No IDs have

Store one or more

stop while scan-

been stored.

IDs (see “Scan

ning a scan list.

 

Lists” on Page 41).

 

 

 

 

The IDs you

Scan another trans-

 

have stored are

mission.

 

not active.

 

 

 

 

59

Page 59
Image 59
Radio Shack PRO-90 owner manual Error

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.