RadioShack Pro 28 Programmable Scanner Reciever Owners Manual

31
Specified Intervals
Frequencies in different bands are accessible only at specific intervals.
For example:
BAND ALLOCATION
To help decide which frequency ranges to scan, use the following listing
of the typical services that use the frequencies your scanner receives.
These frequencies are subject to change, and might vary from area to
area. For a more complete listing, refer to the “Police Call Radio Guide
including Fire and Emergency Services,” available at your local Radio
Shack store.
Abbreviations...

32
PUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Services
 . . . . . . . . . . . .  (Public Safety, Local Government, Forestry Conservation)
PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Safety
PTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private Trunked
ROAD  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Road &...

33
VHF High Band (148–174 MHz)
148.050–150.345  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CAP, MAR, MIL
150.775–150.790  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
150.815–150.965  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW
150.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Oil Spill Clean up
150.995–151.130  . . . . . . . . . . . . . ....

34
173.3875–173.5375  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MIL
173.5625–173.5875  . . . . . . . . . . . . . . . . . . . . . . . . . . MIL Medical/Crash Crews
173.60–173.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT
ULTRA HIGH FREQUENCY (UHF) (300 MHz–3 GHz)
U. S. Government Band (406–420 MHz)
406.125–419.975  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, USXX
70-cm...

35
AVOIDING IMAGE FREQUENCIES
You might discover one of your regular stations on another frequency
that is not listed. It might be what is known as an image frequency. For
example, you might find a service that regularly uses a frequency of
453.075 also on 474.675.
To see if it is an image, do a little math.
Note the new frequency.  474.975
Double the intermediate frequency of 10.85 MHz (21.700)
and subtract it from the new frequency. –21.700
If the answer is the regular frequency,  453.275
then you have...

36
TROUBLESHOOTING
If you have problems, here are some suggestions that might help. If
none of these suggestions help, take your scanner to your local Radio
Shack store for assistance.
PROBLEM POSSIBLE CAUSE REMEDY
Keys do not work or 
display changes at 
random.Undetermined error. Reset the scanner (see 
“Resetting the Scanner”).
Scanner is on but 
will not scan.The 
SQUELCH control is 
not correctly adjusted.Adjust SQUELCH clockwise. 
Scanner is totally 
inoperative.No power. • Check the batteries, or...

37
RESETTING THE SCANNER
If the scanner’s display locks up or does not work properly after you con-
nect power, you might have to reset the scanner. 
Caution:
 This procedure clears all the information you have pro-
grammed into the scanner. Before you reset the scanner, try turning it
off and on to see if it begins working properly. Use the following proce-
dure only when you are sure your scanner is not working properly.
1. Turn off the scanner.
2. While you press and hold down the 
2 and 9 keys, turn...

38
CARE AND MAINTENANCE
Your Radio Shack PRO-28 30 Channel Direct Entry Programmable
Scanner is an example of superior design and craftsmanship. The fol-
lowing suggestions will help you care for your scanner so you can enjoy
it for years.
Keep the scanner dry. If it gets wet, wipe it dry immedi-
ately. Liquids might contain minerals that can corrode
the electronic circuits.
Use and store the scanner only in normal temperature
environments. Temperature extremes can shorten the
life of electronic...

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SPECIFICATIONS
Frequency Coverage:
29–54 MHz (in 5 kHz steps)
137–174 MHz (in 5 kHz steps)
406–512 MHz (in 12.5 kHz steps)
Channels of Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . .   30 channels
Sensitivity: 
(FM: 20 dB S/N at 3 kHz deviation):
29–54 MHz  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.4 mV
137–174 MHz  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 mV
406–512 MHz  . . . . . . . . . . . . . . . . . . . . . . ....

RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texas 76102
UBZZ01255ZZ
9A7 Printed in the Philippines
Limited One-Year Warranty
This product is warranted by Radio Shack against manufacturing defects in material
and workmanship under normal use for one (1) year from the date of purchase from
Radio Shack company-owned stores and authorized Radio Shack franchisees and
dealers. EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO EXPRESS
WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MER-...