RadioShack Pro 66 Direct Entry Programmable Scanner Reciever Owners Manual

31
UHF Band
Note: Remote control stations and mobile units operate at 5 MHz higher
than their associated base stations and relay repeater units.
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...

32
MARI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   (Coast Guard, Marine Telephone, 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shipboard Radio, Private Stations)
MARS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Military Affiliate Radio System
MED  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Emergency/Medical...

33
6-Meter Amateur Band — (50–54 MHz)
50.00–54.00  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
U.S. Government Band (137–144 MHz)
137.000–144.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
2-Meter Amateur Band (144–148 MHz)
144.000–148.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
VHF High Band (148–174 MHz)
148.050–150.345  . . . . . . . . . . . . ....

34
173.225–173.5375  . . . . . . . . . . . . . . . . . . . . . . . . . . . . MOV, NEWS, UTIL, 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 Amateur Band...

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 474.775.
To see if it is an image, do a little math.
Note the new frequency.  474.775
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,  453.075
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
RadioShack 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” on 
Page 37).
Scanner is on but 
will not scan.•The SQUELCH 
control is not cor-
rectly adjusted.• Adjust SQUELCH 
clockwise.
• Only one channel 
or no channels are 
programmed.•...

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 RadioShack PRO-66 50-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 immediately.
Liquids can contain minerals that can corrode the electronic
circuits.
Use only fresh batteries of the recommended size and type.
Always remove old and weak batteries. They can leak
chemicals that destroy...

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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)
806.0000–823.9375 MHz (in 12.5 kHz steps)
851.0000–868.9375 MHz (in 12.5 kHz steps)
896.1125–956.0000 MHz (in 12.5 kHz steps)
Channels of Operation  . . . . . . . . . . . . . . . . . . . . . . . . . . .   50 Channels
Sensitivity: 
(FM: 20 dB S/N at 3 kHz deviation):
29–54 MHz  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.4 mV
137–174 MHz  . . . . ....

RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
UBZZ01259ZZ
1A6 Printed in the Philippines
RadioShack Limited Warranty
This product is warranted against defects for 1 year from date of purchase
from RadioShack company-owned stores and authorized RadioShack franchi-
sees and dealers. Within this period, we will repair it without charge for parts
and labor. Simply 
bring your RadioShack sales slip as proof of purchase
date to any RadioShack store. Warranty does not cover transportation...