20-521.fm Page 63 Wednesday, August 4, 1999 3:32 PM

TROUBLESHOOTING

If you have problems, here are some suggestions that might help. If they do not, take your scanner to your local RadioShack store for assistance.

PROBLEM

POSSIBLE

REMEDY

CAUSE

 

 

 

 

 

 

 

 

Scanner is on but

SQUELCH is not

Turn SQUELCH

will not scan.

adjusted cor-

clockwise.

 

rectly.

 

 

 

 

 

Only one channel

Store frequencies

 

or no channels

into more than

 

are stored.

one channel.

 

 

 

Scanner is totally

No power.

Check the batter-

inoperative.

 

ies or make sure

 

 

the AC adapter or

 

 

DC adapter is

 

 

connected prop-

 

 

erly.

 

 

 

 

 

Recharge the

 

 

rechargeable bat-

 

 

teries or replace

 

 

the non-recharge-

 

 

able batteries.

 

 

 

 

The AC adapter

Be sure the

 

or DC adapter is

adapter’s barrel

 

not connected.

plug is fully

 

 

plugged into the

 

 

POWER jack.

 

 

 

The scanner’s

Batteries are not

Make sure the

display dims or

correctly

batteries are

the scanner

installed.

installed properly.

sounds a tone

 

 

The batteries are

Recharge the

every 1530 sec-

onds.

weak.

rechargeable bat-

 

 

teries or replace

 

 

the non-recharge-

 

 

able batteries.

 

 

 

Keypad does not

The keylock func-

To turn off the

work.

tion is activated.

keylock, press

 

 

KEYLOCK until

 

 

K/L disappears.

 

 

 

BATT. Lo

The batteries are

Recharge the

flashes.

weak.

rechargeable bat-

 

 

teries or replace

 

 

the non-recharge-

 

 

able batteries.

 

 

 

 

 

63

Page 63
Image 63
Radio Shack PRO-91 owner manual Troubleshooting, Problem Possible Remedy Cause

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.