RadioShack Pro 63 Portable Event Scanner Reciever Owners Manual

41
PRIMARY USAGE
As a general rule, most radio activity is concentrated on the follow-
ing frequencies:
VHF Band
UHF Band
Note:
 Remote control stations and mobile units operate at 5 MHz
higher than their associated base stations and relay repeater
units.
Broadcast TypeSearch 
BandFrequency Range (MHz)
Government, Police, and 
Fire5 153.785 155.980
Emergency Services 5 158.730 159.460
Railroad 5 160.000 161.900
Broadcast TypeSearch 
BandFrequency Range (MHz)
Land-Mobile Paired Fre-
quencies8 450.000...

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SPECIFIED INTERVALS
All the frequencies in the scanner’s search bands are accessible
only at specific intervals. For example:
Note: 
Your scanner automatically rounds the entered frequency
down to the closest valid frequency. For example, if you try to en-
ter a frequency of 151.473, your scanner accepts it as 151.470.
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...

43
MARI ........................................................ Maritime Limited Coast
                                                                    (Coast Guard, Marine
                                                                     telephone, Shipboard
                                                                  Radio, Private stations)
MED................................................ Emergency/Medical Services...

44
37.020-37.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   PUB
38.000-39.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
39.020-39.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   PUB
40.000-42.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
42.020-42.940  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   POL
43.220-43.680  . . . . . . . . . . . . . . . . . . . . . . ....

45
154.540-154.570  . . . . . . . . . . . . . . . . . . .  AUTO, SPORT, STAD
154.600. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  SPORT, STAD
154.655-156.240  . . . . . . . . . . . .  AUTO, MED, POL, PUB, STAD
156.275-157.425  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   MARI
157.450. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
157.710. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  AUTO...

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Ultra High Frequency (UHF) — (300 MHz–3 GHz)
Military Aircraft Band — (319.1–406 MHz)
380.000-383.900  . . . . . . . . . . . . . . . . . . . . . . .  AIR, Coast Guard
384.000-406.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  AIR, GOVT
U.S. Government Band — (406–450 MHz)
406.125-419.975  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT
70-cm Amateur Band — (420–450 MHz)
420.000-450.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
Low Band...

47
Note: Some cities use the 470-512 MHz band for land/mobile ser-
vices.
HAM RADIO FREQUENCIES
Ham radio operators often broadcast emergency information
when other means of communications break down.
The following chart shows the voice frequencies you can monitor.
NATIONAL WEATHER FREQUENCIES
All of the following frequencies except 162.440 are programmed
into your scanner’s weather band.
Note: You can still manually tune to 162.440 (see “Searching For
and Storing Active Frequencies” on Page 21).
Wav el...

48
BIRDIE FREQUENCIES
Birdies are frequencies your scanner uses when it operates.
These operating frequencies might interfere with broadcasts on
the same frequencies. If you program one of these frequencies,
you might hear only noise on that frequency.
If the interference is not severe, you might be able to turn
SQUELCH MIN/MAX clockwise to cut out the birdie. These are the
most common birdies to watch for:
To find your specific scanner’s birdies, begin by disconnecting the
antenna and moving it away...

49
FREQUENCY CONVERSION
The tuning location of a station can be expressed in frequency
(kHz or MHz) or in wavelength (meters). The following information
can help you make the necessary conversions.
1 MHz (million)=1,000 kHz (thousand)
To convert MHz to kHz, multiply by 1,000.
30.62 MHz x 1000=30620 kHz
To convert from kHz to MHz, divide by 1,000.
 =127.8 MHz 
To convert MHz to meters, divide 300 by the number of mega-
hertz.
1.75 meters 127 800,
1000 -----------------------
KHz
300
171 ----------=MHz...

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TROUBLESHOOTING 
If your scanner is not working as it should, these suggestions
might help you eliminate the problem. If the scanner still does not
operate normally, take it to your local Radio Shack store for assis-
tance.
Problem Suggestion
Scanner is on but will not scan. • If SQUELCH MIN/MAX is
adjusted so you always
hear a hissing sound, the
scanner will not scan prop-
erly. Be sure SQUELCH
MIN/MAX is adjusted prop-
erly. See “Turning On the
Scanner and Setting
Squelch” on Page 20.
• Be sure...