RadioShack Pro 93 Handheld Scanner Owners Manual

71A General Guide to Frequencies
10-Meter Amateur Band (in 5 kHz steps)
VERY HIGH FREQUENCY (VHF
)
VHF Low Band-(29–50 MHz in 5 kHz steps)
6-Meter Amateur Band-(50–54 MHz in 5 kHz steps)
Frequency Range Service
28.000–29.700 MHz HAM
Frequency 
RangeServiceFrequency 
RangeService
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, IND, 
TELM, 
PUB
36.000–36.230 GOVT, MIL 36.250 Oil Spill 
Cleanup
36.270–36.990 GOVT,...

72
A General Guide to Frequencies
Aircraft Band-(108–137 MHz in 12.5 kHz steps)
U.S. Government Band (137–144 MHz in 5 kHz steps)
2-Meter Amateur Band (144-148 MHz in 5 kHz steps)
VHF High Band (148–174 MHz in 5, 6.25 or 7.5 kHz
steps)
Frequency Range Service
108.000–121.490 AIR
121.500 AIR Emergency
121.510–136.975 AIR
Frequency Range Service
137.000–144.000 GOVT, MIL
Frequency Range Service
144.000–148.000 HAM
Frequency Range Service
148.050–150.345 CAP, MAR, MIL
150.775–150.790 MED
150.815–150.980...

73A General Guide to Frequencies
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, 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
162.0125–162.350 GOVT, MIL, USXX
162.400–162.550 WTHR
162.5625–162.6375 GOVT,...

74
A General Guide to Frequencies
New Mobile Narrow Band (220–222 MHz in 5 kHz
steps))
1
1/4-Meter Amateur band (222.000–225.000 MHz in 5
kHz steps)
ULTRA HIGH FREQUENCY (UHF)
U. S. Government Band (406–420 MHz in 6.25 kHz
steps)
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
173.225–173.5375 MOV, NEWS, UTIL, MIL
173.5625–173.5875 MIL, Medical/Crash Crews...

75A General Guide to Frequencies
70-cm Amateur Band (420–450 MHz in 6.25 kHz steps)
Low Band (450–470 MHz- in 6.25 kHz steps)
FM-TV Audio Broadcast, UHF Wide Band (470–512
MHz in 6.25 kHz steps) (Channels 14 through 69 in 6
MHz steps)
Frequency Range Service
420.000–450.000 HAM
Frequency Range Service
450.050–450.925 RTV
451.025–452.025 IND, OIL, UTIL
452.0375–453.000 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...

76
A General Guide to Frequencies
Note:
 Some cities use the 470–512 MHz band for land/
mobile service.
Conventional Systems Band — Locally Assigned (in
6.25 kHz steps)
Conventional/Trunked Systems Band — Locally As-
signed (in 6.25 kHz steps)
Trunked Systems Band — Locally Assigned (in 6.25 kHz
steps)
Public Safety Band — Locally Assigned (in 6.25 kHz
steps)
33-Centimeter Amateur Band (902-928 MHz in 6.25 kHz
steps)
511.750 20
Frequency Range Service
851.0125–855.9875 MHz CSB
Frequency Range Service...

77A General Guide to Frequencies
Private Trunked Band (in 6.25 kHz steps)
General Trunked Band (in 6.25 kHz steps)
23-Centimeter Amateur Band (in 6.25 kHz steps)
FREQUENCY CONVERSION
The tuning location of a station can be expressed in fre-
quency (kHz or MHz) or in wavelength (meters). The fol-
lowing information can help you make the necessary
conversions.
1 MHz (million) = 1,000 kHz (thousand)
To convert MHz to kHz, multiply the number of mega-
hertz by 1,000:
30.62 (MHz) x 1000 = 30,620 kHz
To...

78
Troubleshooting
ˆTroubleshooting
If you have problems with your scanner, here are some
suggestions that might help you eliminate the problem. If
they do not, take your scanner to your local RadioShack
store for assistance.
Problem Possible Cause Remedy
Scanner is on but 
will not scanSQUELCH
 is not 
adjusted correctlyTurn SQUELCH 
clockwise. See 
“Turning on the 
Scanner and Set-
ting Squelch” on 
Page 24
Poor or no recep-
tionAn antenna is not 
connected or is 
connected incor-
rectlyMake sure an...

79Troubleshooting
RESETTING/INITIALIZING THE 
SCANNER
If the scanners display locks up or does not work prop-
erly after you connect a power source, you might need to
reset or initialize it.
Important:
 If you have problems with the scanner, first
try to reset it to retain all memory. If that does not work,
you can initialize the scanner; however, initializing clears
all information stored in the scanners memory.
Resetting the Scanner
1. Turn off the scanner, then turn it on again.
2. Insert a pointed...

80
Troubleshooting
only when you are sure the scanner is not working prop-
erly.
1. Turn off the scanner, then turn it on again. 
3