RadioShack Pro 66 Direct Entry Programmable Scanner Reciever Owners Manual

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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 listing, refer to the “Police Call Radio Guide including Fire
and Emergency Services,” available at your local RadioShack store.
Abbreviations Services
BIFC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Boise (ID) Interagency Fire Cache
BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Business
CAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Civil Air Patrol
CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Citizens Band
CCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common Carrier
CSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Conventional Systems
CTSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Conventional/Trunked Systems
FIRE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Fire Department
HAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio
GOVT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government
GMR  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio
GTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Trunked
IND  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Industrial Services
 . . . . . . . . . . . . .  (Manufacturing, Construction, Farming, Forest Products)
MAR  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Military Amateur RadioActivities Frequencies
Land-Mobile “Paired” Frequencies 450.000–470.000 MHz
Base Stations 451.025–454.950 MHz
Mobile Units 456.025–459.950 MHz
Repeater Units 460.025–464.975 MHz
Control Stations 465.025–469.975 MHz
Band T
ype Specified Interval
VHF, HAM, and Government 5.0 kHz steps
All Others 12.5 kHz steps
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MARI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   (Coast Guard, Marine Telephone, 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shipboard Radio, Private Stations)
MARS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Military Affiliate Radio System
MED  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Emergency/Medical Services
MIL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .U.S. Military
MOV  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motion Picture/Video Industry
NEW  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New Mobile Narrow
NEWS  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Relay Press (Newspaper Reporters)
OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Oil/Petroleum Industry
POL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Police Department
PUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Services
 . . . . . . . . . . . .  (Public Safety, Local Government, Forestry Conservation)
PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Safety
PTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private Trunked
ROAD  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Road & Highway Maintenance
RTV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Radio/TV Remote Broadcast Pickup
TAXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taxi Services
TELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Mobile Telephone
 . . . . . . . . . . . . . . . (Aircraft, Radio Common Carrier, Landline Companies)
TELC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cordless Phones
TELM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Telephone Maintenance
TOW  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Tow Trucks
TRAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Transportation Services
 . . . . . . . . . . . . . . . . . . . . . . .(Trucks, Tow Trucks, Buses, Railroad, Other)
TSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Trunked Systems
TVn  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM-TV Audio Broadcast
USXX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Government Classified
UTIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power & Water Utilities
WTHR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Weather
VERY HIGH FREQUENCY (VHF) — (30 MHz–300 MHz)
VHF Low Band — (29.7–50 MHz — in 5 kHz steps)
29.900–30.550  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
30.580–31.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, PUB
32.000–32.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
33.020–33.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB
34.010–34.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
35.020–35.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM
36.000–36.230  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
36.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup
36.270–36.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
37.020–37.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PUB, IND
38.000–39.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
39.020–39.980  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PUB
40.000–42.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, MARI
42.020–42.940  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  POL
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, TELC
47.020–47.400  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PUB
47.420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  American Red Cross
47.440–49.580  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, PUB
49.610–49.990  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MIL, TELC
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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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  TELM
152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
152.030–152.240  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
152.270–152.480  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, BUS
152.510–152.840  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
152.870–153.020  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV
153.035–153.725  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, OIL, UTIL
153.740–154.445  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  PUB, FIRE
154.490–154.570  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, BUS
154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup
154.600–154.625  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS
154.655–156.240  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED, ROAD, POL, PUB
156.255–157.425  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI
157.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
157.470–157.515  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW
157.530–157.725  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  IND, TAXI
157.740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS
157.770–158.100  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
158.130–158.460  . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, OIL, TELM, UTIL
158.490–158.700  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB
158.730–159.465  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB, ROAD
159.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  OIL
159.495–161.565  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  TRAN
161.580–162.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  OIL, MARI, RTV
162.0125–162.35  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL, USXX
162.400–162.550  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WTHR
162.5625–162.6375  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL, USXX
162.6625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
162.6875–163.225  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL, USXX
163.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
163.275–166.225  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL, USXX
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, FIRE
170.175–170.225  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT
170.245–170.305  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Wireless Mikes
170.350–170.400  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GOVT, MIL
170.425–170.450  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  BIFC
170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB
170.4875–173.175  . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, PUB, Wireless Mikes
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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 (420–450 MHz)
420.000–450.000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV
457.525–457.600  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS
458.025–458.175  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
460.0125–460.6375  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIRE, POL, PUB
460.650–462.175  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS
462.1875–462.450  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  BUS, IND
462.4625–462.525  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL
462.550–462.925  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GMR, BUS
462.9375–463.1875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  MED
463.200–467.925  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS
FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz)
(Channels 14 through 69 in 6 MHz steps)
475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14
481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15
487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16
..
..
511.750  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20
Note: Some cities use the 470–512 MHz band for land/mobile service.
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
866.0125–868.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSB
33-Centimeter Amateur Band (902–928 MHz)
902.0000–928.0000  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  HAM
Private Trunked
935.0125–939.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR
General Trunked
940.0125–940.9875  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  GTR
20-511.fm  Page 34  Wednesday, August 4, 1999  2:13 PM 
						

							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 tuned to an image.
Occasionally, you might get interference on a weak or distant channel
from a strong broadcast 21.7 MHz below the tuned frequency. This is
rare, and the image signal is usually cleared whenever there is a broad-
cast on the actual frequency.
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 the number of megahertz by 1,000:
9.62 (MHz) x 1000  = 9620 kHz
To convert from kHz to MHz, divide the number of kilohertz by 1,000:
2780 (kHz) ¸ 1000 = 2.780 MHz
To convert MHz to meters, divide 300 by the number of megahertz:
300 ¸ 7.1 MHz = 42.25 meters
20-511.fm  Page 35  Wednesday, August 4, 1999  2:13 PM 
						

							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.• Program more than 
one channel.
Scanner is totally 
inoperative.No power. • Check the batteries, 
or make sure the 
scanner is plugged 
into a working AC or 
DC outlet.
• Recharge the re-
chargeable batteries 
or replace the non-
rechargeable batter-
ies.
The optional AC or DC 
power adapter is not 
connected.Be sure the adapter is fully 
inserted into the DC 12V 
jack.
The scanner’s dis-
play dims or the 
scanner sounds a 
tone every 15-30 
seconds.Batteries are not cor-
rectly installed.Make sure the batteries’ + 
and – terminals are proper-
ly aligned.
Batteries need to be 
replaced.Insert new batteries or re-
charge rechargeable bat-
teries.
Keypad does not 
work.The keylock function is 
activated.Press 
KEYLOCK until   dis-
appears from the display to 
turn off the keylock.
 flashes on the dis-
play.The batteries are weak. Recharge the rechargeable 
batteries, or replace the 
non-rechargeable batter-
ies. 
K
B
20-511.fm  Page 36  Wednesday, August 4, 1999  2:13 PM 
						

							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 on the scan-
ner.
PROBLEM POSSIBLE CAUSE REMEDY
Poor or no recep-
tion.• Batteries are 
weak or dead.
• Environment is 
not suitable for 
reception by the 
scanner.
• Improperly con-
nected antenna.• Check the batteries, 
or make sure the 
scanner is plugged 
into a working AC or 
DC outlet.
• Relocate the scanner 
and try again.
• Be sure the antenna is 
properly connected.
Error appears on 
the display.Programming error. Reprogram the frequency 
correctly.
In the scan mode, 
the scanner locks 
on frequencies that 
have an unclear 
transmission.Programmed frequen-
cies are the same as 
“birdie” frequencies.Avoid programming fre-
quencies listed under “Bird-
ie Frequencies”  on 
Page 29 or only listen to 
them manually. 
20-511.fm  Page 37  Wednesday, August 4, 1999  2:13 PM 
						

							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 electronic circuits.
Handle the scanner gently and carefully. Dropping it can
damage circuit boards and cases and can cause the scan-
ner to work improperly.
Use and store the scanner only in normal temperature envi-
ronments. Temperature extremes can shorten the life of
electronic devices, damage batteries, and distort or melt
plastic parts.
Keep the scanner away from dust and dirt, which can cause
premature wear of parts.
Wipe the scanner with a damp cloth occasionally to keep it
looking new. Do not use harsh chemicals, cleaning solvents,
or strong detergents to clean the scanner.
Modifying or tampering with your scanner’s internal components can
cause a malfunction and might invalidate the scanner’s warranty and
void your FCC authorization to operate it. If your scanner is not operat-
ing as it should, take it to your local RadioShack store for assistance.
CLEANER
20-511.fm  Page 38  Wednesday, August 4, 1999  2:13 PM 
						

							39
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  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 mV
406–512 MHz  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.6 mV
806–956 MHz  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.6 mV
Selectivity:
±10 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –6 dB
±17 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 dB
Scan Speed  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15 Channels/Sec.
Search Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20 Steps/Sec.
Delay Time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2 Seconds
Acceptable RF Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±6 kHz
IF Frequencies  . . . . . . . . . . . . . . . . . . . . . . . .  10.85 MHz and 450 kHz
Squelch Sensitivity:
Threshold  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Less than 0.4 mV
Tight (S+N)/N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 dB
Built-in Speaker  . . . . 1
9/16 Inches (4 cm) 8 Ohm, 0.5 W, Dynamic Type
Power Requirement  . . . . . . . . . . . . . . DC 4 AA Batteries (6.0 VDC), or
4 AA Rechargeable Ni-Cd Batteries (4.8 VDC), or
Vehicle Battery DC Power Cord (Cat. No. 270-1533), or
AC Adapter (Cat. No. 273-1652)
Current Drain:
Squelched . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45 mA
Full Volume Unsquelched  . . . . . . . . . . . . . . . . . . . . . . . . .  125 mA
Dimensions (HWD) . . . . . . . . . . . . . . . . . . . .   6
3/8 ´ 211/16 ´ 19/16 Inches
(162 ´ 68.5 ´ 39 mm)
Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8.8 oz (250 g)
Specifications are typical; individual units might vary. Specifications are
subject to change and improvement without notice.
20-511.fm  Page 39  Wednesday, August 4, 1999  2:13 PM 
						

							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 costs.
Nor does it cover a product subjected to misuse or accidental damage.
EXCEPT AS PROVIDED HEREIN, RADIOSHACK MAKES NO EXPRESS
WARRANTIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURA-
TION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CON-
TAINED HEREIN. Some states do not permit limitation or exclusion of implied
warranties; therefore, the aforesaid limitation(s) or exclusion(s) may not apply
to the purchaser.
This warranty gives you specific legal rights and you may also have other rights which
vary from state to state.
We Service What We Sell10/95
20-511.fm  Page 40  Wednesday, August 4, 1999  2:13 PM