Class - DirectionFinder

<< feature >> AIXM_v.5.1.1.AIXM.AIXM Features.Navaids Points.Navaids

<<feature>> An electronic device used to determine the position of a radio source by means of directional antennas, which receives the strongest radio signal when it is pointing directly at the transmitter.

Inheritance

This is a specialization of the NavaidEquipment class and it inherits all attributes and associations of that class.

List of attributes

Name	Data Type	Definition
doppler	CodeYesNoType	Indicates whether the equipment uses the Doppler effect for higher precision.
designator	CodeNavaidDesignatorType	The identifying code given to the navaid.	Inherited from NavaidEquipment
name	TextNameType	The long name given to the navaid equipment.	Inherited from NavaidEquipment
emissionClass	CodeRadioEmissionType	A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference.	Inherited from NavaidEquipment
mobile	CodeYesNoType	Indicates if the navaid equipment is mobile.	Inherited from NavaidEquipment
magneticVariation	ValMagneticVariationType	The measured angle between Magnetic North and True North at the VOR and at the time reported in dateMagneticVariation. By convention, the measure is expressed as a positive number if Magnetic North is to the east of True North and negative if Magnetic North is to the west of True North. Therefore, magnetic bearing + magnetic variation = true bearing. The following rule of thumb applies: ""variation east-magnetic least, variation west-magnetic best"".	Inherited from NavaidEquipment
magneticVariationAccuracy	ValAngleType	The accuracy of the measured angle between Magnetic North and True North at the VOR and at the time reported in dateMagneticVariation	Inherited from NavaidEquipment
dateMagneticVariation	DateYearType	The year the magnetic variation was measured.	Inherited from NavaidEquipment
flightChecked	CodeYesNoType	Indicates if the navaid equipment has been flight checked.	Inherited from NavaidEquipment

Navigable associations from DirectionFinder

Association	Multiplicity	Role	To	Role description
associatedWith	0..*	informationProvision	InformationService	An Information Service (such as TWEB, ASOS, AWOS, etc.) associated with the Direction Finder.
isPlacedAt	0..1	location	ElevatedPoint	the graphical location of the component	Inherited from NavaidEquipment
isUnmonitoredBy	0..*	monitoring	NavaidEquipmentMonitoring	Navaid equipment monitoring information.	Inherited from NavaidEquipment
hasAnnotations	0..*	annotation	Note		Inherited from NavaidEquipment
isUnderResponsibilityOf	0..*	authority	OrganisationAuthority	The organization responsible for the equipment (could be owner or operator).	Inherited from NavaidEquipment
worksBy	0..*	availability	NavaidOperationalStatus	The operational status of the navaid equipment.	Inherited from NavaidEquipment

Navigable associations to DirectionFinder

From	Association	Multiplicity	Role	To	Role description
AirTrafficControlService	assistedBy	0..1	aircraftLocator	The Direction Finder assisting the ATC service (such as APP, TWR, etc.).
RunwayCentrelinePoint	hasEstablished	0..*	navaidEquipment	A Navaid Equipment that is located near the runway and for which the relative position from a centreline point is defined.	Inherited from NavaidEquipment
Navaid	isComposedOf	0..*	navaidEquipment	the component of the navaid system	Inherited from NavaidEquipment
EquipmentChoice		0..1	navaidEquipment	The component of a system used for air navigation.	Inherited from NavaidEquipment
VerticalStructure	hosts	0..*	hostedNavaidEquipment	The Navigation Aid Equipment hosted by the Vertical Structure.	Inherited from NavaidEquipment

Used By (diagrams)