RadioShack Pro 92 Handheld Trunking Scanner Owners Manual

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ULTRA HIGH FREQUENCY (UHF)
U. S. Government Band (406–420 MHz)
406.125–419.975 . . . . . . . . . . . . . . . . . . . . . . . . GOVT, USXX
70-cm Amateur Band (420–450 MHz)
420.000–450.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM
Low Band (450–470 MHz)
450.050–450.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  RTV
451.025–452.025 . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL
452.0375–453.00 . . . . . . . . . . IND, TAXI, TRAN TOW, NEWS...

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Private Trunked Band
935.0125–939.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR
General Trunked Band
940.0125–940.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GTR
FREQUENCY CONVERSION
The tuning location of a station can be expressed in fre-
quency (kHz or MHz) or in wavelength (meters). The fol-
lowing information can help you make the necessary
conversions.
1 MHz (million) = 1,000 kHz (thousand)
To convert MHz to kHz, multiply the number of mega-
hertz by...

73
TROUBLESHOOTING
If you have problems with your scanner, here are some
suggestions that might help you eliminate the problem. If
they do not, take your scanner to your local Ra-
dioShack store for assistance.
Problem Possible Cause Remedy
Scanner is on 
but will not 
scan.
SQUELCH is not 
adjusted cor-
rectly.Turn SQUELCH clock-
wise. See “Turning on 
the Scanner and Setting 
Squelch” on Page 35.
Scanner is 
totally inoper-
ative.No power. Check the batteries or 
make sure the AC 
adapter or DC adapter...

74
In the scan 
mode, the 
scanner locks 
on frequen-
cies that have 
an unclear 
transmission.Stored frequen-
cies are the 
same as “birdie” 
frequencies.Avoid storing birdie fre-
quencies or only select 
them manually. See 
“Birdie Frequencies” on 
Page 65. 
Keys do not 
work or dis-
play changes.Undetermined 
error.Turn the scanner off 
then on again, or reset 
the scanner. See 
“Resetting/Initializing 
the Scanner” on Page 
75. Problem Possible Cause Remedy
20-522.fm  Page 74  Friday, May 19, 2000...

75
RESETTING/INITIALIZING THE 
SCANNER
If the scanner’s display locks up or does not work proper-
ly after you connect a power source, you might need to
reset or initialize it.
Important: If you have problems with the scanner, first
try to reset it to retain all memory. If that does not work,
you can initialize the scanner; however, initializing clears
all information stored in the scanner’s memory.
Resetting the Scanner
1. Turn off the scanner, then turn it on again.
2. Insert a pointed object, such as...

76
2. Press 0 then 1 while the display shows Welcome
To
 Multi-System Trunking. Initializ-
ing
 Please Wait. appears on the display about
25 seconds.
Note: Do not turn off the scanner until the initializa-
tion is complete and 
Welcome To Multi-Sys-
tem
 Trunking appears again.
20-522.fm  Page 76  Friday, May 19, 2000  4:35 PM 

77
CARE AND MAINTENANCE
Your RadioShack PRO-92 500-Channel Portable Trunk-
ing Scanner is an example of superior design and crafts-
manship. The following 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 immediately. Liquids can contain miner-
als that can corrode the electronic circuits.
Use only batteries of the recommended
size and type. Always remove old and weak
batteries. They can leak chemicals that de-
stroy...

78
SPECIFICATIONS
Frequency Coverage:
Ham  ....................................  29–30 MHz (in 5 kHz steps)
VHF Lo  ...............................  30–50 MHz (in 5 kHz steps)
Ham  ....................................  50–54 MHz (in 5 kHz steps)
Aircraft  ............... 108–136.9875 MHz (in 12.5 kHz steps)
Government  ..................... 137–144 MHz (in 5 kHz steps)
Ham  ................................  144–148 MHz (in 5 kHz steps)
VHF Hi  ............................  148–174 MHz (in 5 kHz steps)...

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Search Rate  .........................  Up to 50 Steps per second
Delay Time  ...................................................... 2 seconds
Intermediate Frequencies (IF):
1st ............................................................ 257.5 MHz
2nd ............................................................ 21.4 MHz
3rd ...............................................................  455 kHz
Priority Sampling  ............................................. 2 seconds
Operating Temperature...

RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
GE-99D-3314
09A99 Printed in Japan
Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in
material and workmanship under normal use for one (1) year from the date
of purchase from RadioShack company-owned stores and authorized Ra-
dioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-
dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED
WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY...