1.1   Applicable ICAO Documents

ICAO standards, Recommended Practices and Procedures contained in the following documents are applied (subject to any differences recorded in the Supplement there to).

• Annex 2 - Rules of the Air
• Annex 10 - Aeronautical Telecommunications
• Annex 11 - Air Traffic Services
• Annex 15 - Aeronautical Information Services
• DOC 4444 - Procedures for Air Navigation Services - Air Traffic Management (PANS-ATM)
• DOC 7030 - Regional Supplementary Procedures
• DOC 7910 - Location Indicators
• DOC 8400 - Abbreviations and Codes
• DOC 8585 - Designators for Aircraft Operating Agencies, Aeronautical Authorities and Services
• Doc 9694 - Manual of Air Traffic Services (ATS) Data Link Applications. Global Air Navigation Plan for CNS/ATM Systems (Doc 9750-AN/963,).
• Global Operational Data Link Document (GOLD)(DOC 10037)
• Satellite Voice Operations Manual (SVOM) (DOC 10038)

3.1   Radio Navigation Services

• MF non-directional Beacon - (NDB)
• Fan-Marker - (MKR)
• Surveillance Radar - (SRH)
• Terminal Area Radar - (TAR)
• Instrument Landing System - (ILS)
• VHF Omnidirectional Radio Range - (VOR)
• Distance Measuring Equipment - (DME)
• Locator - (L)

3.2   Fixed Services

Messages to be transmitted over the Aeronautical Fixed Service are accepted only if they satisfy the relevant requirement of ICAO Annex 10.
Aircraft Operating Agencies having direct connection to the Irish AFTN are required, in accordance with the provisions of Annex 10, to retain copies of all messages transmitted by them for a period of thirty days.
The regulations governing the acceptance and handling of communications on the AFTN are contained in Annex 10 Vol. II Chapters 3 and 4.

3.3   SHANWICK Radio Aeronautical Mobile Radio telephony Operations in the North Atlantic Area (NAT)

• HF Aeromobile operations in the NAT are available for use in groups known as “families” and will be assigned as appropriate on first contact.
• As a general guide, the following frequency allocation principles are used;

  Table 1:

  NAT Frequency Allocation Principles
  Frequency Family	Usage
  NAT A	Assigned to aircraft flying routes with reporting coordinates between 43N and 47N
  NAT B & C	Assigned to aircraft flying routes with reporting coordinates between 47N and 64N. Primary assignment for aircraft flying central routes
  NAT D	Assigned to aircraft flying routes with reporting coordinates north of 62N
  NAT F	Assigned to aircraft flying routes entirely within the Gander and SHANWICK Areas. Assigned on a tactical basis and coordinated between SHANWICK Radio and Gander Radio
  NAT H, I & J	Regional Domestic Air Route Area: Assigned on a tactical basis

• HF Families are designated as follows

  Table 2:

  SHANWICK Radio Frequencies And Hours Of Operation
  	Frequency	Normal Hours of Operation*
  *This information is provided for guidance only. Hours of service of individual frequencies, or groups of frequencies, may vary as HF propagation conditions or operational requirements demand.
  **Channel 128.360 is reserved for intervention or emergency purposes only for T9 and T290. See UK AIP ENR 2.2.
  NAT Family A	3016 kHz	0100-0900, 1800-2200
  	5598 kHz	H24
  	8906 kHz	0900-2100
  	13306 kHz	As Required
  NAT Family B	2899 kHz	0000-0900, 1800-2400
  	5616 kHz	H24
  	8864 kHz	0900-2100 Daily
  	13291 kHz	As Required
  NAT Family C	2872 kHz	0000-0900, 1800-2400
  	5649 kHz	H24
  	8879 kHz	0900-2100
  	11336 kHz	As Required
  	13306 kHz	As Required
  NAT Family D	2971 kHz	0100-0800
  	4675 kHz	0100-0800, 1100-1800
  	8891 kHz	As Required
  	11279 kHz	As Required
  NAT Family F	3476 kHz	0100-0800 Daily
  	6622 kHz	1000-1800 Daily
  	8831 kHz	1000-1800 Daily
  	13291 kHz	As Required
  	17946 kHz	As Required
  VHF GP Frequency	127.900 MHz	H24
  	124.175 MHz	H24
  	128.360**	H24

• Additionally on a tactical basis, SHANWICK Radio operates Regional and Domestic Air Route Area (RDARA) frequencies. These frequencies are used individually or by common network agreement between the NAT Aeronautical Stations.

  Table 3:

  Regional Domestic Air Route Area (RDARA) Frequencies
  Family	Frequencies
  Family H	2965 kHz	3491 kHz	5583 kHz	6556 kHz	6667 kHz	10021 kHz
  	10036 kHz	11363 kHz
  Family I	2860 kHz	2881 kHz	2890 kHz	3458 kHz	3473 kHz	3488 kHz
  	5484 kHz	5568 kHz	6550 kHz	6595 kHz	10066 kHz
  Family J	2869 kHz	2944 kHz	2992 kHz	3446 kHz	3473 kHz	4651 kHz
  	4666 kHz	4684 kHz	5460 kHz	5481 kHz	5559 kHz	5577 kHz
  	6547 kHz	8954 kHz	11276 kHz

3.4   SELCAL Operation in the NAT Region

During the time that they depended on HF communications, pilots should maintain a listening watch on the assigned frequency. This will not be necessary, however, if SECAL is fitted and used correct
Correct SELCAL use includes:

1. The provision of the SELCAL code in the flight plan:
2. The issue of a correction to the SELCAL code if subsequently altered due to change of aircraft or equipment and
3. A check on the operation of the SELCAL equipment at or prior to initial entry into oceanic airspace with the appropriate radio station. This SELCAL check must be completed prior to commencing SELCAL watch.

3.5   Use of VHF Channel 128.360

1. 128.360 is reserved for intervention or emergency purposes only on airways T9 and T290, and is to be continuously monitored to facilitate direct controller pilot communications by Shanwick OAC using the Shanwick Control Callsign.
2. Prior to entering T9/T290 crews will be requested to monitor Channel 128.360 and shall continuously monitor the frequency while in the Shanwick OCA - there is no requirement to check in on frequency. In the event that Shanwick Radio need to contact an aircraft on this frequency they will use the Shanwick Radio Callsign.
3. Routine communications, position reports, RCL or flight profile change requests are to be made directly to Shanwick Radio via assigned frequencies on HF
4. For full conditions of use refer to UK AIP ENR 2.2

3.6   Broadcasting Service

Meteorological Broadcasts designed primarily for aircraft in flight are provided on HF and VHF.
Full details are given in GEN 3.5

3.7   Satellite Voice Services

Pilots of suitably equipped aircraft on North Atlantic (NAT) routes may contact SHANWICK Radio via satellite telephone (SATVOICE). Access Code is 425002.

3.8   

SHANWICK Radio also have the HF SAR frequencies 2182 kHz, 3023 kHz and 5680 kHz for co-ordination purposes with SAR/Coastguard aircraft as Scene of Search frequencies.

3.9   Controller Pilot Data Link Communication Services (CPDLC)

Limited Controller Pilot Data Link Communication Services (CPDLC) for suitably equipped aircraft will be available for use in areas of the SHANNON Upper Airspace (SHANNON UIR), NOTA & SOTA under the responsibility of SHANNON ACC.