Aerodrome Communication Facilities

(Ref. UK AIP AD 2)

OXFORD/KIDLINGTON

EGTK AD 2.18 ATS COMMUNICATION FACILITIES

Air Information Publications 1

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Aerodrome Radio Navigation and Landing Aids

BOURNEMOUTH

EGHH AD 2.19 RADIO NAVIGATION AND LANDING AIDS

From the table opposite:

•Bournemouth has a Category I Instrument Landing System (ILS) for runways 08 (call sign

I BMH) and 26 (call sign I BH). The Localizer (LLZ) frequency for either runway system is 110.50 MHz; the paired glide path (GP) frequency for each is 329.60 MHz. The ILS hours of operation are denoted as HO, which means that the service is available to meet operational requirements. The antenna co-ordinates, published in the remarks column, are given in degrees, minutes, seconds and hundredths of latitude and longitude.

The remarks column also states that the glide slope for each ILS is 3°, and that the ILS Ref Datum Hgt (Reference Datum Height ) for runway 08 and 26 is 53 ft and 50 ft.

“The ILS reference datum point is a point at a specified height (around 50 ft) located vertically above the intersection of the runway centre line and threshold, through which the downward extended portion of the ILS glide path extends.”

The remarks column for the ILS also publishes the localizer limitations for runway 08 and states, for the ILS on runway 26, that ”The quality of guidance provided does not permit use of the facility for coupled approaches below 350 ft.”

•L in the Type Column indicates that the airfield has a low powered Non-directional Beacon (NDB), known as a Locator, sited on the aerodrome (AD) at the published latitude and longitude; its call sign is BIA, frequency 339 kHz and operational hours H24 (continuous service). Range 20 NM in the remarks column is the promulgated range or Designated Operational coverage (DOC):

“The range promulgated for UK NDBs is based upon a daytime signal protection ratio between wanted and unwanted signals that limits bearing errors at that distance to +/- 5°. At ranges greater than those promulgated bearing errors will increase. Adverse propagation conditions particularly at night will also increase bearing errors. This protection takes into account average atmospheric noise but not night-time sky waves.”

See the latest AIC on Radio Navigation Aids - Designated Operational Coverage.

•The DME (Distance Measuring Equipment) is frequency paired with ILS I BMH (RWY 08) and I BH (RWY 26). Ch (channel number) 42X is the selection for military TACAN (TACtical Air Navigation) equipped aircraft. The operational hours are HO and the aerial elevation is 44 ft AMSL. With reference to the Remarks column, Zero range is indicated at the threshold of runway 26 and 160 m before crossing the threshold of runway 08.

Other Sources

Publications such as Aerad and Jeppesen Flight Guides, Low and High Level Airways Charts, Arrival and Departure Charts and Airfield Approach Charts all, variously, provide information on airfield opening hours, handling, communication and radio navigation and landing aids etc.

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Search and Rescue

There may on occasions be a question relating to Search and Rescue (SAR). SAR is covered in Air Law. References for this topic are:

•010 Air Law

•UK AIP Document GEN 3.6

•ICAO Document Search and Rescue, Annex 12