RadioShack Pro 79 Vhf Uhf Handheld Scanner Reciever Owners Manual

41
A GENERAL GUIDE TO SCANNING
Reception of the frequencies covered by your scanner is mainly
“line-of-sight.” That means you usually cannot hear stations that
are beyond the horizon.
GUIDE TO FREQUENCIES
National Weather Frequencies
Birdie Frequencies
Every scanner has birdie frequencies. Birdies are signals creat-
ed inside the scanner’s receiver. These operating frequencies
might interfere with transmissions on the same frequencies. If
you program one of these frequencies, you hear only noise on
that...

42
GUIDE TO THE ACTION BANDS
Typical Band Usage (MHz)
Primary Usage
As a general rule, most of the radio activity is concentrated on
the following frequencies:
VHF Band
UHF BandVHF Band
Low Range
29.00–50.00
6-Meter Amateur50.00–54.00 
Aircraft108.00–136.00 
U.S. Government137.00–144.00 
2-Meter Amateur144.00–148.00
High Range148.00–174.00 
UHF Band
Military Aircraft
311.00–384.00 
U.S. Government406.00–420.00 
70-Centimeter Amateur420.00–450.00 
Low Range450.00–470.00 
FM-TV Audio Broadcast, Wide...

43
Note:
 Remote control stations and mobile units operate at 5
MHz higher than their associated base stations and relay re-
peater units.
BAND ALLOCATION
To help decide which frequency ranges to scan, use the follow-
ing 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...

44
TELM   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Telephone Maintenance
TOW  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Tow Trucks
TRAN  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Transportation Services
(Trucks, Tow Trucks, Buses, Railroad, Other)
TSB   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Trunked Systems
TVn  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  FM-TV...

45
VHF High Band (148–174 MHz)
148.050–150.345  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  CAP, MAR, MIL
150.775–150.790  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   MED
150.815–150.980  . . . . . . . . . . . . . . . . . . . . . . .  TOW, Oil Spill Cleanup
150.995–151.475  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   ROAD, POL
151.490–151.955  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   IND, BUS
151.985   . . . . ....

46
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
453.0125–454.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   PUB, OIL
454.025–454.975  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   TELB
455.050–455.925  . . . . . . . . ....

47
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 properly, take it to your local RadioShack store for
assistance. 
PROBLEM POSSIBLE CAUSE REMEDY
Scanner is 
totally inopera-
tive.The AC or DC 
adapter is not con-
nected.Be sure the adapter’s barrel 
plug is fully inserted into the 
PWR 
jack.
The batteries are 
dead.Replace the batteries with 
fresh ones, or recharge the 
rechargeable batteries....

48
CARE AND MAINTENANCE
Your RadioShack PRO-79 200 Channel VHF/Air/UHF Hand-
held Scanner is an example of superior design and craftsman-
ship. 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 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 devices and...

49
SPECIFICATIONS
Frequency Coverage (MHz):
10 Meter Amateur Radio  .....................  29–30 (in 5 kHz steps)
VHF Lo  ................................................  30–50 (in 5 kHz steps)
6 Meter Amateur Radio  .......................  50–54 (in 5 kHz steps)
Aircraft  ...............................  108–136.9875 (in 12.5 kHz steps)
Government  .....................................  137–144 (in 5 kHz steps)
2 Meter Amateur Radio  ...................  144–148 (in 5 kHz steps)
VHF Hi...

50
Power Requirements  ......................  6 Volts DC, 4 AA Batteries
AC Adapter (Optional)
DC Adapter (Optional)
Current Drain (Squelched)  ..............................................  45 mA
Dimensions (HWD)  .............................. 5
11/16 
´ 
23/8 ´
 13/8 Inches
(145 ´
 62 ´
 34 mm)
Weight (without antenna and batteries)  ........................... 7.9 oz
(224 g)
Supplied Accessories .........................  Antenna, Battery Holder,
Rechargeable Battery Holder
Specifications are...