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12
FREQUENCY TABLE
12
Frequency
Description
121.500 Emergencies
122.000 Flight
Advisory
Service
122.200
Flight Service Stations
122.700
Unicom— Uncontrolled airports
122.725
Unicom— Private airports
122.750 Unicom—
Air-to-air
communications
122.800
Unicom— Uncontrolled airports
122.900
Search & rescue training, & uncontrolled airports
122.950
Unicom— Controlled airports
123.000
Unicom— Uncontrolled airports
123.025 Helicopters—
Air-to-air
communications
123.050 Unicom—
Heliports
123.075 Unicom—
Heliports
123.100
Search & Rescue
123.300 Flight
Schools
123.450
Air-to-air communications (unof
fi
cial)
123.500 Flight
Schools
123.600
Flight Service Stations— Uncontrolled airports
148.125
Civil Air Patrol Repeaters— Secondary
148.150
Civil Air Patrol Repeaters— Primary
156.300 Aircraft-to-ship—
safety
156.400 Aircraft-to-ship—
commercial
156.425 Aircraft-to-ship—
non-commercial
156.450 Aircraft-to-ship—
commercial
156.625 Aircraft-to-ship—
non-commercial
156.900 Aircraft-to-ship—
commercial
243.000
Military Emergency “Guard”
255.400 Flight
Advisory
Service
257.800 Civilian
Towers
311.000 SAC
Primary
321.000 SAC
Secondary
381.800 USCG—
Primary
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General aviation frequencies
(unit: MHz)
CH
Frequency
Remarks
range
2– 13
54–216 (same as broadcast VHF)
14– 22
120–174 Mid band
Ch. A–I
23– 36
216–300 Super band
J–W
37– 53
300–402
Hyper band
AA–QQ
54– 64
402–468
65– 94
468–648 (Ultra band)
95– 99
90–120 Low band
A5–A1
100–125
648–804 (Ultra band)
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Cable TV
(IRC)
(unit: MHz)
169.445 MHz
169.505 MHz
170.245 MHz
170.305 MHz
171.045 MHz
171.105 MHz
171.845 MHz
171.905 MHz
*Power limited to 1/20 watt. These frequencies are also used at drive-in win-
dows at some fast-food restaurants.
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Wireless Microphones