Radio Shack PRO-28 User Manual (English)

Questions and Answers:

M
Megan PierceAug 15, 2025
What to do if my Radio Shack PRO-28 Scanner is totally inoperative?
- Y
  youngmatthewAug 15, 2025
  If your Radio Shack Scanner is totally inoperative, there could be a few reasons. First, check the power: ensure the batteries are good, or that the scanner is properly plugged into a working AC or DC outlet. If you're using an optional AC or DC power adapter, make sure it's fully inserted into the DC 12V jack. If the batteries are dead, recharge the rechargeable batteries or replace the non-rechargeable batteries.
D
Danny MurrayAug 18, 2025
What to do if keypad does not work on Radio Shack PRO-28?
- L
  lindseymcintoshAug 18, 2025
  If the keypad on your Radio Shack Scanner isn't working, the keylock function might be activated. Press the KEYLOCK button until the 'K' disappears from the display to turn off the keylock.
T
Taylor HarrisonAug 22, 2025
What to do if my Radio Shack PRO-28 is on but will not scan?
- W
  wrightmarkAug 22, 2025
  If your Radio Shack Scanner is on but not scanning, the SQUELCH control might not be correctly adjusted. Try adjusting the SQUELCH clockwise.
M
Megan AndersonAug 25, 2025
How to fix Radio Shack Scanner keys that do not work?
- M
  micheal86Aug 26, 2025
  If the keys on your Radio Shack Scanner do not work or the display changes at random, reset the scanner.
L
Lori EllisonAug 29, 2025
Why does my Radio Shack PRO-28 have poor or no reception?
- M
  Mary SmithAug 29, 2025
  Poor or no reception on your Radio Shack Scanner can occur for a couple of reasons. The environment might not be suitable for reception, or the batteries could be weak. Try relocating the scanner. Also, check the antenna to ensure it is properly connected.
B
Brian LambAug 31, 2025
Why does B flash on the display of my Radio Shack Scanner?
- F
  Francisco HamiltonAug 31, 2025
  If 'B' is flashing on the display of your Radio Shack Scanner, it means the batteries are weak. Recharge the rechargeable batteries or replace the non-rechargeable batteries.
A
ashley83Sep 4, 2025
Why does Radio Shack PRO-28’s display dim or sound a tone every 15-30 seconds?
- J
  Jonathan VaughnSep 4, 2025
  If your Radio Shack Scanner display dims or sounds a tone every 15-30 seconds, it could be due to a couple of reasons. First, make sure the batteries are correctly installed, with the + and – terminals properly aligned. If that's not the issue, the batteries might need replacing; insert new batteries or recharge rechargeable ones.
K
Kyle HouseSep 7, 2025
What to do if Error appears on the display of Radio Shack PRO-28?
- N
  Nathaniel LeonSep 7, 2025
  If 'Error' appears on the display of your Radio Shack Scanner, it indicates a programming error. Reprogram the frequency correctly.

Radio Shack PRO-28 Specifications

General

Type	Handheld Scanner
Channel Capacity	200
Dimensions	5.5 x 2.1 x 8.5 inches
Weight	12.8 oz
Antenna	Telescopic
Power Source	AC adapter
Bands	VHF, UHF
Modes	AM, FM
Channel Steps	5 kHz, 12.5 kHz
Frequency Range	29-54 MHz, 108-174 MHz, 406-512 MHz

Summary

FCC NOTICE

SCANNING LEGALLY

TROUBLESHOOTING AND MAINTENANCE

TROUBLESHOOTING COMMON ISSUES

Solutions for common problems like unresponsive keys, no scanning, or low power.

RESETTING THE SCANNER

Procedure to restore the scanner to its factory default settings, clearing all programmed data.

CARE AND MAINTENANCE GUIDELINES

Guidelines for cleaning, storing, and maintaining the scanner for longevity.

SPECIFICATIONS

PREPARATION AND POWER

POWER SOURCES OVERVIEW

Details on powering the scanner from internal, AC, or vehicle batteries.

USING INTERNAL BATTERIES

Instructions for installing and using AA or rechargeable batteries.

EXTERNAL POWER JACKS

Information on the POWER and CHARGE jacks for external power connections.

STANDARD AC POWER CONNECTION

Guide to powering the scanner using an AC adapter and its requirements.

VEHICLE BATTERY POWER CONNECTION

Instructions for powering the scanner from a vehicle's cigarette lighter socket.

CHARGING NICKEL-CADMIUM BATTERIES

Procedure for recharging Ni-Cd batteries within the scanner.

CONNECTING THE ANTENNA

CONNECTING AUDIO ACCESSORIES

EARPHONE/HEADPHONE CONNECTION

How to connect earphones or headphones for private listening.

LISTENING SAFELY

Guidelines to protect hearing when using earphones or headphones.

TRAFFIC SAFETY

Warnings about using earphones while operating vehicles or bicycles.

CONNECTING AN EXTENSION SPEAKER

ATTACHING THE BELT CLIP

UNDERSTANDING YOUR SCANNER

SCANNER KEYPAD LAYOUT

Explanation of the functions of each key on the scanner's keypad.

SCANNER DISPLAY INDICATORS

Understanding the various symbols and indicators displayed on the scanner screen.

OPERATION BASICS

TURNING ON AND SETTING SQUELCH

Initial steps to power on the scanner and adjust the squelch control for clear reception.

STORING FREQUENCIES

Procedure for entering and saving radio frequencies into scanner channels.

SEARCHING FOR ACTIVE FREQUENCIES

How to perform Band Search and Direct Search to find active transmissions.

BAND SEARCH PROCEDURE

Detailed steps for searching within specific pre-programmed frequency bands.

DIRECT SEARCH PROCEDURE

Detailed steps for searching up or down from a specific frequency.

SEARCH SKIP MEMORY

How to skip specific unwanted frequencies during searches.

MONITOR MEMORY AND CHANNEL MANAGEMENT

MONITOR MEMORY OPERATION

Using the monitor memory to temporarily store and listen to found frequencies.

MOVE MONITOR TO CHANNEL

Procedure to transfer a frequency from monitor memory to a permanent channel.

SCANNING MODES AND FEATURES

SCANNING STORED CHANNELS

How to initiate scanning through the programmed channels.

USING 2-SECOND DELAY FEATURE

How to program a delay to avoid missing replies on active channels.

LOCKING OUT CHANNELS

Method to skip unwanted channels during scanning to increase speed.

MANUALLY SELECTING A CHANNEL

How to directly tune to and monitor a specific channel without scanning.

WEATHER BAND AND KEYLOCK

LISTENING TO WEATHER BAND

Accessing and scanning preprogrammed NOAA weather frequencies.

USING THE KEYLOCK FEATURE

How to activate the keylock to prevent accidental changes to scanner settings.

SCANNING GUIDES AND FREQUENCIES

GENERAL SCANNING GUIDE

Overview of scanner reception principles and line-of-sight limitations.

FREQUENCY GUIDES

Lists of national weather and birdie frequencies for reference.

ACTION BANDS GUIDE

Information on typical band usage and primary services by frequency range.

TYPICAL BAND USAGE

Detailed breakdown of frequency ranges and common services within VHF and UHF bands.

PRIMARY USAGE

Highlights of frequently used frequencies for government, emergency, and land-mobile services.

SPECIFIED INTERVALS

Details on frequency step intervals required for accessing different bands.

BAND ALLOCATION

Typical services allocated to specific frequency bands and their abbreviations.

FREQUENCY MANAGEMENT AND CONVERSION

AVOIDING IMAGE FREQUENCIES

Understanding and identifying image frequencies that can cause interference.

FREQUENCY CONVERSION

Information on converting frequencies between MHz, kHz, and meters for calculations.

WARRANTY INFORMATION

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