ATC-01Civil Aviation HF bands

High Frequencies were widely used for domestic aircraft voice communications years ago. Nearly all that traffic moved to Very High Frequencies long ago and domestic aircraft use of Medium Frequencies is now very rare. However, international flights still use the High Frequencies bands routinely for voice communications, because of the much longer distances over which they can be used. All these frequencies can be received by the receiver at this website. In 1921, Croydon Airport, London was the first airport in the world to introduce air traffic control.
In the United States, Air Traffic Control developed three divisions. The first – Air Mail Radio Stations (AMRS) was created in 1922 after World War I when the US Post Office began using techniques developed by the Army to direct and track the movements of reconnaissance aircraft. Over time, the AMRS morphed into Flight Service Stations. Today’s Flight Service Stations do not issue control instructions, but provide pilots with many other flight related informational services. They do relay control instructions from ATC in areas where Flight Service is the only facility with radio or phone coverage. The first Airport Traffic Control tower, regulating arrivals, departures and surface movement of aircraft at a specific airport, opened in Cleveland in 1930. Approach/Departure Control facilities were created after adoption of radar in the 1950s to monitor and control the busy airspace around larger airports. The first Air Route Traffic Control Center, which directs the movement of aircraft between departure and destination was opened in Newark, NJ in 1935, followed in 1936 by Chicago and Cleveland.

2.850 – 3.155 MHz (305 kHz)
3.400 – 3.500 MHz (100 kHz)
4.650 – 4.750 MHz (100 kHz)
5.450 – 5.730 MHz (280 kHz)
6.525 – 6.765 MHz (240 kHz)
8.815 – 9.040 MHz (225 kHz)
10.005 – 10.100 MHz ( 95 kHz)
11.175 – 11.400 MHz (225 kHz)
13.200 – 13.360 MHz (160 kHz)
15.010 – 15.100 MHz ( 90 kHz)
17.900 – 18.030 MHz (130 kHz)
20.005 – 21.000 MHz ( 95 kHz)
21.850 – 22.000 MHz (150 kHz)
22.720 – 23.200 MHz (480 kHz)
23.200 – 23.350 MHz (150 kHz)
23.350 – 24.890 MHz (1540 kHz)

NORTH ATLANTIC, ROUTE A
Canary Islands, Gander, New York
Paramaribo, Piarco, Santa Maria & Shanwick
30126, 5598, 8906, 13306, 17946 kHz

NORTH ATLANTIC, ROUTE B
Gander, Reykjavik, New York,
Santa Maria & Shanwick
2899, 5616, 8864, 13291, 17946 kHz

NORTH ATLANTIC, ROUTE C
Gander, Reykjavik & Shanwick
2862, 5649, 8879, 13306, 17946 kHz

NORTH ATLANTIC, ROUTE D
Bodo, Cambridge Bay, Churchill,
Iqaluit, Gander, Reykjavik & Sondrestrom
2971, 4675, 8891, 11279, 13291, 17946 kHz

NORTH ATLANTIC, ROUTE E
New York and Santa Maria
2962, 6628, 8825, 11309, 13354 kHz

NORTH ATLANTIC, ROUTE F
Gander and Shanwick
3476, 6622, 8831, 11336, 13291 kHz

CARIBBEAN, ROUTE A
Barranquilla, Boyeros, Guatemala City,
Meridia, New York, Panama, Piarco, San Andres,
San Jose, Tegucigalpa
2887, 5550, 6577, 8918, 11396, 13297, 17907 kHz

CARIBBEAN, ROUTE B
Barranquilla, Boyeros, Cayenne,
Georgetown, Maiquetia, New York, Panama,
Paramaribo, Piarco, San Andres
3455, 5520, 6586, 8846, 11330, 17907 kHz

AFRICA, ROUTE 1
Abidjan, Bamako, Bangui, Bissau,
Bobo dioulasso, Bouake, Casablanca, Conakry,
Canaris, Dakar, Freetown, Kano, Niamey,
Nouadhibou, Nouakchott, Ouagadougou, Roberts
3452, 6535, 8861, 13357, 17955 kHz

AFRICA, ROUTE 2
Algiers, Brazzaville, Kano, Gao, Niamey,
N’djamena, Tamanrasset, Timimoun, Tripoli, Tunis
3419, 5652, 8894, 13273, 17961 kHz

AFRICA, ROUTE 3
Addis Ababa, Aden, Asmara, Bahrain,
Benghazi, Bombay, Bujumbura, Cairo, Comoros,
Dar es Salaam, Entebbe, Hargesia, Djibouti, Jeddah,
Khartoum, Kigali, Kisimayu, Male, Mogadishu,
Nairobi, N’djamena, Sana’a, Seychelles, Tripoli
3467, 5658, 10018, 11300, 13288, 17961 kHz

AFRICA, ROUTE 4
Accra, Bangui, Brazzaville, Bulawayo,
Cotonou, Douala, Entebbe, Franceville, Garoua,
Goma, Johannesburg, Kano, Kinshasa, Kisangani,
Lagos, Libreville, Lome, Luanda, Lumbumbashi,
Lusaka, Maroua, Maseur, Nairobi, N’djamena,
N’djili, Niamey, Niamtougou, Port Gentil, Roberts,
Salisbury, Salazar, Seychelles, Windhoek, Yaounde
2878, 5493, 8903, 13294, 17961 kHz

CENTRAL EAST PACIFIC, ROUTES 1 and 2
Honolulu and San Francisco
2869, 3413, 5547, 5574, 8843, 11282, 13261 kHz

NORTH PACIFIC, ROUTES 2 and 4
Honolulu, San Francisco & Tokyo
NOTE: San Francisco covers Anchorage
5628, 5677, 6665, 8915, 10048, 13294, 13339 kHz