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A code indicating a time period within a day. For example, day or night.
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Allowable values:
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D
[Day.]
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N
[Night.]
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A
[Day and night.]
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OTHER
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A code indicating if a waypoint should be crossed 'at', 'at or above', 'at or below' a specific altitude or 'between' two specified altitudes.
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Allowable values:
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LA
[at or above the lower altitude.]
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BH
[at or below the higher altitude.]
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L
[at the lower altitude.]
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B
[between the lower and the upper altitudes.]
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OTHER
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A code indicating a 1-dimensional direction, for example, forward or backward.
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Allowable values:
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F
[forward.]
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B
[backward.]
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A code indicating a direction with regard to a reference point, e.g. to or from.
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Allowable values:
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TO
[Towards the reference point.]
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FROM
[From the reference point.]
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A code indicating the direction of a turn.
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Allowable values:
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L
[Left.]
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R
[Right.]
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E
[Either left or right.]
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A code indicating the reference for a vertical distance. Two series of values exist: 1) real distance: from GND, from the MSL, from the WGS-84 ellipsoid 2) pressure distance: QFE, QNH, STD.
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Allowable values:
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HEI
[The distance measured from GND..]
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ALT
[The distance measured from MSL..]
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W84
[The distance measured from WGS-84 ellipsoid..]
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QFE
[A reading of 0 on the altimeter setting which occurs on GND..]
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QNH
[Altimeter setting gives field elevation on GND (~ 0 at MSL)..]
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STD
[The altimeter setting is set to standard atmosphere..]
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OTHER
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A code indicating the type of emission, as defined at the 1979 ITU World Administrative Radio Conference. For example, A3E, NONA2a, G1D.
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Allowable values:
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A2
[Telegraphy, no voice.]
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A3A
[Single side-band, reduced carrier.]
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A3B
[Two independent side-bands.]
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A3E
[AM double side-band telephony.]
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A3H
[Single side-band, full carrier.]
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A3J
[Single side-band, suppressed carrier.]
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A3L
[Lower single side-band, carrier unknown.]
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A3U
[Upper single side-band, carrier unknown.]
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J3E
[AM double side-band suppressed carrier telephony.]
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NONA1A
[Unmod. trans., morse ident., carrier emission interrupted.]
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NONA2A
[Unmod. trans., morse ident., carrier emission continuous.]
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PON
[Pulse.]
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A8W
[AM (unkeyed) plus ON/OFF keying of Ident tone.]
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A9W
[Composite AM/FM (unkeyed) plus ON/OFF keying of Ident tone.]
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NOX
[Unmodulated carrier.]
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G1D
[DPSK Data transmission.]
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OTHER
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A coded value used to indicate a type of operation combining an elementary flow condition or a previously defined combination of flow conditions with other elementary flow conditions or previously defined combinations.
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Allowable values:
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AND
[1st condition fulfilled AND 2nd condition fulfilled.]
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ANDNOT
[1st condition fulfilled AND 2nd condition not fulfilled.]
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OR
[1st condition fulfilled OR 2nd condition fulfilled.]
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SEQ
[1st condition is fulfilled BEFORE 2nd condition is fulfilled.]
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NONE
[no operation (used for flows identified by a single condition)..]
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A code indicating status of a flight.
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Allowable values:
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HEAD
[Head of State.]
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STATE
[State aircraft.]
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[note:
Other than Head of State
.]
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HUM
[Humanitarian flight.]
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HOSP
[Hospital flight.]
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SAR
[Search and rescue.]
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OTHER
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A code indicating the type of a flight.
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Allowable values:
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OAT
[Operational Air Traffic.]
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GAT
[General Air Traffic.]
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OTHER
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