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Introduction & Background

This topic contains only PANS-AIM requirements relevant for a marker. For general PANS-AIM requirements valid for all kind of Radio navigation aids see topic Navaid [NAV] and subordinated pages.

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See topic Basic Data for Navaid.

Hours of Operation

See topic Hours of Operation for Navaid.

Marker Frequency

In AIXM 5, the value of the radio emission frequency of the marker is coded by using the MarkerBeacon.frequency attribute.

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Also in some AIPs this information is published.

Tip
title AIP context

Position

In case a marker beacon collocated with an NDB (Locator) is physically located at the same position as the Locator, the geographic position (latitude and longitude) of the Locator is also the geographic position of the Marker.

In case a Marker is collocated with an NDB (Locator) and the geographic position of the Marker is different from the geographic position of the locator, some restrictions have to be taken into account (see coding rules below).

For more details see topic Navaid Position & Elevation.

Operating Authority

See topic Operating Authority for Navaid.

Facility Coverage

See topic Facility coverage.

Navaid Collocation

In case the marker is used as part of a ILS or Localizer system, the position of it within that system has to be coded.

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Coding Rules for Marker Beacon

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AIXM-5.1_RULE-1A3360

(rule is for all marker beacons not only enroute)

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The geographical distance between the MarkerBeacon.location and the NDB.location used as NavaidEquipment for the same Navaid instance must be less than 100 metres.

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Coding Examples

Coding examples can also be found in the DONLON AIXM 5.1.1 AIP data set filethe AIP Data Set - Specimen (DONLON):

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