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U.S. Aeronautical Telecommunications Services

Services Available for Aircraft Engaged in International or Overseas Flight

a. The aeronautical voice communications stations listed are available to and utilized by the U.S. FAA Air Route Traffic Control Centers (ARTCCs) for air traffic control purposes.

b. The frequencies in use will depend upon the time of day or night and conditions which affect radio wave propagation. Voice communications are handled on a single channel simplex basis (i.e., with the aircraft and the ground station using the same frequency for transmission and reception) unless otherwise noted in remarks.

c. The stations will remain on continuous watch for aircraft within their communication areas, and when practicable, will transfer this watch to another station when the aircraft reaches the limit of the communications area.

d. Stations listed below which are designated "FAA" are operated by the U.S. FAA Flight Service Stations. Stations designated "ARINC" are operated by Aeronautical Radio, Incorporated, 2551 Riva Road, Annapolis, MD 21401. Contact the Aviation Voice Services Support Section at 410-266-4430, E:Mail AGOPS@arinc.com or cable HDQXGXA.

e. All users of the North Atlantic HF MWARA services should consult International NOTAMS and ICAO Regional Supplementary Procedures, Document 7030, for current procedures concerning the operational use of the North Atlantic HF families. At present, procedures for the distribution of HF communications traffic in the North Atlantic are:

  1. All aircraft registered in the hemisphere west of 30W should use family alpha on the southern routes and family bravo on the central and northern routes. (Southern routes are those which enter the New York, San Juan and Santa Maria FIRs. The central and northern routes comprise all others.)

  2. All aircraft registered in the hemisphere east of 30W should use family alpha on the southern routes and family charlie on the central and northern routes.

  3. All aircraft should use family alpha on the southern route and family delta on the central and northern routes while outside the organized track system (OTS).

  4. Aircraft registered in Australia will use families designated to aircraft registered east of 30W.

f. Aircraft operating in the Anchorage Arctic CTA/FIR beyond line of sight range of remote control VHF air/ground facilities operated from the Anchorage ACC, shall maintain communications with Cambridge Bay radio and a listening or SELCAL watch on HF frequencies of the North Atlantic D (NAT D) network (2971 kHz, 4675 kHz, 8891 kHz and 11279 kHz). Additionally, and in view of reported marginal reception of the Honolulu Pacific VOLMET broadcasts in that and adjacent Canadian airspace, Cambridge Bay radio can provide Anchorage and Fairbanks surface observations and terminal forecasts to flight crews on request.

1-9-2. Selective Calling System (SELCAL) Facilities Available

The SELCAL is a communication system which permits the selective calling of individual aircraft over radio-telephone channels from the ground station to properly equipped aircraft, so as to eliminate the need for the flight crew to constantly monitor the frequency in use.

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