Icom IC-R20 Instruction Manual - Page 88

General aviation frequencies, Cable TV, Wireless Microphones

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13 FREQUENCY TABLE D General aviation frequencies Frequency Description 121.500 122.000 122.200 122.700 Emergencies Flight Advisory Service Flight Service Stations Unicom- Uncontrolled airports 122.725 Unicom- Private airports 122.750 Unicom- Air-to-air communications 122.800 122.900 122.950 123.000 123.025 Unicom- Uncontrolled airports Search & rescue training, & uncontrolled airports Unicom- Controlled airports Unicom- Uncontrolled airports Helicopters- Air-to-air communications 123.050 Unicom- Heliports 123.075 Unicom- Heliports 123.100 123.300 123.450 123.500 123.600 Search & Rescue Flight Schools Air-to-air communications (unofficial) Flight Schools 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 156.400 156.425 156.450 156.625 Aircraft-to-ship- commercial Aircraft-to-ship- non-commercial Aircraft-to-ship- commercial Aircraft-to-ship- non-commercial 156.900 Aircraft-to-ship- commercial 243.000 Military Emergency "Guard" 255.400 Flight Advisory Service 257.800 311.000 321.000 381.800 Civilian Towers SAC Primary SAC Secondary USCG- Primary 75 D Cable TV (IRC) CH Frequency range Remarks 2- 13 14- 22 23- 36 37- 53 54- 64 65- 94 95- 99 100-125 54-216 (same as broadcast VHF) 120-174 Mid band Ch. A-I 216-300 Super band J-W 300-402 402-468 Hyper band AA-QQ 468-648 (Ultra band) 90-120 Low band A5-A1 648-804 (Ultra band) (unit: MHz) D Wireless Microphones 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 windows at some fast-food restaurants.

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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 (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
D
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)
D
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.
D
Wireless Microphones