Distance Measuring Equipment
E886369
Distance Measuring Equipment is an aviation radio navigation system that provides pilots with the slant range distance between an aircraft and a ground-based transponder station.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Distance Measuring Equipment canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10780590 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Distance Measuring Equipment Context triple: [DME, fullName, Distance Measuring Equipment]
-
A.
TACAN
TACAN is a military tactical air navigation system that provides aircraft with precise bearing and distance information to a ground station.
-
B.
Non-Directional Beacons
Non-directional beacons are ground-based radio transmitters that emit signals in all directions to help aircraft determine their bearing and navigate, especially in low-visibility conditions.
-
C.
GBAS (Ground-Based Augmentation System)
GBAS (Ground-Based Augmentation System) is an advanced navigation aid that enhances GPS signals at airports to provide highly accurate, reliable guidance for precision aircraft approaches and landings.
-
D.
LORAN
LORAN is a long-range terrestrial radio navigation system originally developed for maritime and aviation positioning before the advent of satellite-based GPS.
-
E.
Knickebein radio navigation system
The Knickebein radio navigation system was a World War II German Luftwaffe beam-guidance technology used to direct bombers accurately to their targets at night and in poor visibility.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Distance Measuring Equipment Target entity description: Distance Measuring Equipment is an aviation radio navigation system that provides pilots with the slant range distance between an aircraft and a ground-based transponder station.
-
A.
TACAN
TACAN is a military tactical air navigation system that provides aircraft with precise bearing and distance information to a ground station.
-
B.
Non-Directional Beacons
Non-directional beacons are ground-based radio transmitters that emit signals in all directions to help aircraft determine their bearing and navigate, especially in low-visibility conditions.
-
C.
GBAS (Ground-Based Augmentation System)
GBAS (Ground-Based Augmentation System) is an advanced navigation aid that enhances GPS signals at airports to provide highly accurate, reliable guidance for precision aircraft approaches and landings.
-
D.
LORAN
LORAN is a long-range terrestrial radio navigation system originally developed for maritime and aviation positioning before the advent of satellite-based GPS.
-
E.
Knickebein radio navigation system
The Knickebein radio navigation system was a World War II German Luftwaffe beam-guidance technology used to direct bombers accurately to their targets at night and in poor visibility.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
aviation navigation aid
ⓘ
radio navigation system ⓘ |
| abbreviation | DME ⓘ |
| affectedBy |
aircraft altitude
ⓘ
terrain masking ⓘ |
| basedOn | radio signals ⓘ |
| canBe |
paired with VOR frequency
ⓘ
standalone installation ⓘ |
| category | secondary radar system ⓘ |
| classifiedAs | short-to-medium range navigation aid ⓘ |
| computes | distance from signal round-trip time ⓘ |
| displaysTo | pilot ⓘ |
| displayUnit | nautical miles ⓘ |
| hasComponent |
airborne interrogator unit
ⓘ
cockpit display ⓘ ground transponder unit ⓘ |
| integratedInto |
FMS
ⓘ
aircraft navigation systems ⓘ |
| introducedIn | mid-20th century ⓘ |
| measurementPrinciple | time delay measurement ⓘ |
| measuresDistanceBetween |
aircraft
ⓘ
ground-based transponder station ⓘ |
| oftenCoLocatedWith |
ILS facility
ⓘ
VOR station ⓘ
linked to:
VOR/DME
|
| operatesOn |
L-band frequencies
ⓘ
UHF band ⓘ |
| outputType | slant range not ground track distance ⓘ |
| provides |
continuous distance updates
ⓘ
slant range distance ⓘ |
| regulatedBy |
FAA
ⓘ
ICAO ⓘ
linked to:
International Civil Aviation Organization
|
| requires |
frequency pairing between interrogator and transponder
ⓘ
line-of-sight propagation ⓘ |
| standardizedIn | ICAO Annex 10 ⓘ |
| supports |
en route navigation
ⓘ
instrument approaches ⓘ position fixing with NDB/DME ⓘ position fixing with VOR/DME ⓘ terminal area navigation ⓘ |
| supportsProcedure |
DME arc approach
ⓘ
RNAV with DME/DME updating ⓘ |
| usedBy |
civil aviation
ⓘ
military aviation ⓘ |
| usedFor |
checking aircraft altitude versus distance constraints
ⓘ
non-precision approach guidance ⓘ |
| usedIn | aviation ⓘ |
| uses |
interrogator on aircraft
ⓘ
transponder on ground ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Distance Measuring Equipment Description of subject: Distance Measuring Equipment is an aviation radio navigation system that provides pilots with the slant range distance between an aircraft and a ground-based transponder station.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.