RadioShack Pro 74 Vhf Uhf Race Scanner Reciever Owners Manual

41 Chan-
nel 
No.Frequency Chan-
nel 
No.Frequency
Ship Shore Ship Shore
Birdie Frequencies
Every scanner has birdie frequencies. Birdies are signals created in-
side the scanner’s receiver. These operating frequencies might inter-
fere with broadcasts on the same frequencies. If you program one of
these frequencies, you hear only noise on that frequency. If the inter-
ference is not severe, you might be able to turn 
SQUELCH clockwise to
cut out the birdie. The birdie frequencies (in MHz) found in this...

42
To find the birdies in your particular scanner, begin by disconnecting the
antenna and moving it away from the scanner. Make sure that no other
nearby radios or TVs are turned on near the scanner. Use the search
function to search every frequency range from its lowest to the highest
frequency. Occasionally, the searching will stop as if it had found a sig-
nal, often without any sound. That is a birdie. Make a list of all the birdies
in your scanner for future reference.
GUIDE TO THE ACTION BANDS...

43
Primary Usage
As a general rule, most of the radio activity is concentrated on the fol-
lowing frequencies:
VHF Band
UHF Band
Note:
 Remote control stations and mobile units operate at 5 MHz high-
er than their associated base stations and relay repeater units.
BAND ALLOCATION
To help decide which frequency ranges to scan, use the following list-
ing of the typical services that use the frequencies your scanner re-
ceives. These frequencies are subject to change, and might vary from
area to area. For...

44
FIRE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Fire Department
HAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio
GOVT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government
GMR  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio
GTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

45
42.960–43.180  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND
43.220–43.680  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM, IND, PUB
43.700–44.600  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  TRAN
44.620–46.580  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB
46.600–46.990  . . . . . . . . . . . . . . . . . . . . . . . . . . ....

46
166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE
166.275–169.400  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, BIFC
169.445–169.505  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT
169.55–169.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL, USXX
170.000–170.150  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC, GOVT, RTV,...

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Conventional Systems Band – Locally Assigned
851.0125–855.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSB
Conventional/Trunked Systems Band – Locally Assigned
856.0125–860.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  CTSB
Trunked Systems Band – Locally Assigned
861.0125–865.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB
Public Safety Band – Locally Assigned...

48
TROUBLESHOOTING
If you have problems, here are some suggestions that might help. If
none do, take your scanner to your local RadioShack store for as-
sistance.
PROBLEM POSSIBLE CAUSE REMEDY
Keys do not work or 
display changes at 
random.Undetermined error. Reset the scanner (see 
“Resetting the Scanner” 
on Page 49).
Scanner is on but 
will not scan.SQUELCH is not 
correctly adjusted.Adjust SQUELCH clock-
wise.
Only one channel or 
no channels are 
stored.Store frequencies into 
more than one...

49
BATT.Lo  appears.The batteries are 
weak.Recharge rechargeable 
batteries, or replace non-
rechargeable batteries.  PROBLEM POSSIBLE CAUSE REMEDY
RESETTING THE SCANNER
If the scanner’s display locks up or does not work properly after you
connect power, you might need to reset the scanner. 
Caution:
 This procedure clears all the information you have stored into
the scanner (such as frequencies and car numbers). Before you reset
the scanner, try turning it off and on to see if it begins working...

50
CARE AND MAINTENANCE
Your RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHz Race
Scanner is an example of superior design and craftsmanship. The fol-
lowing suggestions will help you care for your scanner so you can en-
joy it for years. 
Keep the scanner dry. If it gets wet, wipe it dry immedi-
ately. Liquids can contain minerals that can corrode the
electronic circuits.
Use only batteries of the required size and recommended
type. Always remove old and weak batteries. They can
leak chemicals that...