RadioShack Pro 72 Portable Scanner Reciever Owners Manual

41
GUIDE TO THE ACTION BANDS
United States Broadcast Bands
In the United States, there are several broadcast bands.
The standard AM and FM bands are probably the most well
known. There are also four television audio broadcast
bands — the lower three transmit on the VHF band and
the fourth transmits on the UHF band.
Typical Band Usage
VHF Band
Low Range 29.00–50.00 MHz
6-Meter Amateur 50.00–54.00 MHz
U.S. Government 137.00–144.00 MHz
2-Meter Amateur 144.00–148.00 MHz
High Range 148.00–174.00 MHz
UHF Band...

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Primary Usage
As a general rule, most of the radio activity is concentrated
on the following 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.
Activities Frequencies
Government, Police, and Fire 1 53 .7 85 –1 55 .9 80  M Hz
Emergency Services 158.730–159.460 MHz
Railroad 160.000–161.900 MHz
Activities Frequencies
Land-Mobile “Paired” 
Frequencies450.000–470.000 MHz
Base Stations...

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SPECIFIED INTERVALS
Frequencies in different bands are accessible only at spe-
cific intervals. For example:
BAND ALLOCATION
To help decide which frequency ranges to scan, use the
following listing of the typical services that use the fre-
quencies 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 RadioShack store....

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OIL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil/Petroleum Industry
POL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Police Department
PUB  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Public Services
(Public Safety, Local Government, Forestry Conservation)
PSB  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Public Safety
PTR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private Trunked...

45
U.S. Government Band
137.000–144.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL
2-Meter Amateur Band
144.000–148.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM
VHF High Band
148.050–150.345 . . . . . . . . . . . . . . . . . . . . . . . .  CAP, MAR, MIL
150.775–150.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED
150.815–150.980 . . . . . . . . . . . . . . . . . .  TOW, Oil Spill Cleanup
150.995–151.475 . . . . . . . . . . . . ....

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170.425–170.450  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  BIFC
170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB
170.4875–173.175 . . . . . . . . . . . . . GOVT, PUB, Wireless Mikes
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)
U....

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Public Safety Band — Locally Assigned
866.0125–868.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PSB
33-Centimeter Amateur Band
902.0000–928.0000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM
Private Trunked
935.0125–939.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PTR
General Trunked
940.0125–940.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GTR
FREQUENCY CONVERSION
The tuning location of a station can be expressed...

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TROUBLESHOOTING
If your scanner is not working as it should, these sugges-
tions might help you eliminate the problem. If the scanner
still does not operate properly, take it to your local Ra-
dioShack store for assistance.
Problem Possible Causes Remedies
The scanner 
does not 
work at all.The AC or DC 
adapter is not 
properly connect-
ed.Be sure the adapt-
er is plugged into 
a working AC out-
let or cigarette-
lighter socket, and 
is fully inserted 
into the scanner’s 
PWR/DC 9V jack.
The internal...

49
ProblemPossible 
CausesRemedies
Scanner is on 
but does not 
scan.
SQUELCH is not 
correctly adjust-
ed.Adjust SQUELCH 
clockwise (see 
“Turning On the 
Scanner/Setting 
Volume and 
Squelch” on 
Page 26).
In the scan 
mode, the 
scanner locks 
on frequen-
cies that have 
an unclear 
transmission.Programmed fre-
quencies are the 
same as birdie 
frequencies.Avoid program-
ming frequencies 
listed under “Bird-
ie Frequencies” on 
Page 40 or only 
listen to them 
manually.
20-566.fm  Page 49  Thursday,...

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RESETTING/INITIALIZING THE 
SCANNER
If the scanner’s display locks up or does not work properly
after you connect a power source, you might need to reset
or initialize it.
Important:
 If you have problems, first try to reset the
scanner. If that does not work, you can initialize the scan-
ner; however, initializing clears all frequencies you stored
in the scanner’s memory and initializes the scanner to its
default settings.
Resetting the Scanner
1. Turn off the scanner, then turn it on again.
2....