Radio Shack PRO-91 owner manual Error

Models: PRO-91

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20-521.fm Page 64 Wednesday, August 4, 1999 3:32 PM

PROBLEM

POSSIBLE

CAUSE

REMEDY

PROBLEM

POSSIBLE

REMEDY

CAUSE

 

 

 

 

 

 

 

 

 

An antenna is not

Make sure an

 

connected or

antenna is con-

 

connected incor-

nected to the

 

rectly.

scanner.

 

 

 

Error

Programming

Re-enter the fre-

appears.

error.

quency correctly,

 

 

including the deci-

 

 

mal point.

 

 

 

The scanner

Stored frequen-

Avoid storing fre-

locks on frequen-

cies are the same

quencies listed

cies that have an

as “birdie” fre-

under “Birdie Fre-

unclear transmis-

quencies.

quencies” on

sion.

 

Page 57 or only

 

 

listen to them

 

 

manually.

 

 

 

Scanner will not

The transmis-

Scan another

track a trunked

sion might not

transmission.

system.

use a system that

 

 

can be tracked by

 

 

your scanner.

 

 

 

 

 

The data fre-

Find the data fre-

 

quency is miss-

quency (see

 

ing.

“Storing Trunked

 

 

Frequencies” on

 

 

Page 41).

 

 

 

 

The system you

Set the scanner to

 

are trying to track

receive Type I

 

is a Type I sys-

trunked frequen-

 

tem, and the

cies. See “Scan-

 

scanner is set to

ning Type I and

 

scan Type II sys-

Hybrid Trunked

 

tems.

Systems” on

 

 

Page 50.

 

 

 

Scanner is set to receive Type I trunked frequen- cies, but does not scan them.

The fleet map you have select- ed or entered might be incor- rect.

Check the fleet map and correct it if necessary (see “Scanning Type I and Hybrid Trunked Sys- tems” on Page 50 and “Program- ming a Fleet Map” on Page 51).

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Radio Shack PRO-91 owner manual Error

PRO-91 specifications

The Radio Shack PRO-91 is a handheld scanner that appeals to both amateur radio enthusiasts and professionals seeking a reliable and versatile communication device. Known for its user-friendly design and wide range of features, the PRO-91 is an excellent choice for monitoring various frequencies, including VHF and UHF bands.

One of the standout features of the PRO-91 is its capability to scan frequencies in the 25-1300 MHz range, which allows users to listen in on a variety of communications. This includes police, fire, and emergency services, as well as amateur radio transmissions and aircraft communications. The scanner supports both analog and some digital formats, making it adaptable to different communication standards and ensuring users stay updated with relevant broadcasts.

The PRO-91 comes with 200 programmable channels, allowing users to store their favorite frequencies for quick access. It also features a million frequency search capability, enabling it to detect active signals within the scanning range. Additionally, the scanner includes a priority channel function, permitting users to designate a specific frequency to continuously monitor while scanning through other channels.

Another notable characteristic of the PRO-91 is its triple conversion design, which enhances sensitivity and selectivity, resulting in improved audio clarity and reduced interference. The unit is equipped with a robust speaker that delivers clear sound quality, making it easy to understand transmissions even in noisy environments.

Users will appreciate the ergonomic design of the PRO-91, which features intuitive controls and a backlit LCD display for easy visibility, even in low-light conditions. The keypad layout is designed for straightforward operation, allowing even novice users to navigate through menus and settings with ease.

The PRO-91 is powered by a rechargeable battery, offering extended usage without the need for constant battery replacements. Its compact and lightweight construction makes it portable, making it suitable for on-the-go monitoring.

In conclusion, the Radio Shack PRO-91 offers an impressive array of features, technologies, and characteristics that cater to diverse scanning needs. With its wide frequency range, programmable channels, and superior audio quality, it stands out as a reliable choice for anyone looking to explore the world of radio communication. Whether for recreational use or professional monitoring, the PRO-91 ensures users remain connected to the signals that matter most.