75
13
FREQUENCY TABLE
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 (unofficial)
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
DD
General aviation frequencies
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)
DD
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.
DD
Wireless Microphones
