FLR-9 antenna array
E515296
Cold War military installation
circular antenna array
high-frequency direction-finding system
signals intelligence collection system
The FLR-9 antenna array is a large, circular high-frequency direction-finding system used during the Cold War for long-range signals intelligence and communications interception.
All labels observed (2)
| Label | Occurrences |
|---|---|
| FLR-9 antenna array canonical | 1 |
| High-Frequency Direction Finding | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5374347 — 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: FLR-9 antenna array Context triple: [RAF Chicksands, hasFacility, FLR-9 antenna array]
-
A.
APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
-
B.
Erieye radar
The Erieye radar is a Swedish airborne early warning and control (AEW&C) radar system known for its active electronically scanned array (AESA) technology and long-range surveillance capabilities.
-
C.
ALTAIR radar
ALTAIR radar is a powerful tracking and surveillance radar system located on Kwajalein Atoll, used primarily for space object tracking and missile defense research.
-
D.
J/APG-1 AESA radar
The J/APG-1 is an advanced Japanese active electronically scanned array (AESA) fire-control radar developed for modern fighter aircraft, offering high-resolution tracking, multi-target engagement, and improved resistance to jamming.
-
E.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
- 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: FLR-9 antenna array Target entity description: The FLR-9 antenna array is a large, circular high-frequency direction-finding system used during the Cold War for long-range signals intelligence and communications interception.
-
A.
APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
-
B.
Erieye radar
The Erieye radar is a Swedish airborne early warning and control (AEW&C) radar system known for its active electronically scanned array (AESA) technology and long-range surveillance capabilities.
-
C.
ALTAIR radar
ALTAIR radar is a powerful tracking and surveillance radar system located on Kwajalein Atoll, used primarily for space object tracking and missile defense research.
-
D.
J/APG-1 AESA radar
The J/APG-1 is an advanced Japanese active electronically scanned array (AESA) fire-control radar developed for modern fighter aircraft, offering high-resolution tracking, multi-target engagement, and improved resistance to jamming.
-
E.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
Cold War military installation
ⓘ
circular antenna array ⓘ high-frequency direction-finding system ⓘ signals intelligence collection system ⓘ |
| alsoKnownAs |
Elephant Cage
NERFINISHED
ⓘ
Wullenweber antenna array NERFINISHED ⓘ |
| capableOf |
determining bearing of HF radio transmitters
ⓘ
intercepting over-the-horizon HF communications ⓘ |
| controlledBy |
Electronic Security Command
NERFINISHED
ⓘ
United States Air Force Security Service NERFINISHED ⓘ |
| countryOfDeployment |
Germany
NERFINISHED
ⓘ
Italy NERFINISHED ⓘ Japan NERFINISHED ⓘ Philippines NERFINISHED ⓘ Turkey NERFINISHED ⓘ United Kingdom NERFINISHED ⓘ United States NERFINISHED ⓘ |
| designedFor |
360-degree azimuth coverage
ⓘ
long-range HF signal coverage ⓘ |
| developedBy | United States defense contractors ⓘ |
| hasComponent |
central operations building
ⓘ
concentric rings of vertical antenna elements ⓘ receiver and processing equipment ⓘ underground or buried cabling network ⓘ |
| locatedAt |
Augsburg Gablingen
NERFINISHED
ⓘ
Clark Air Base NERFINISHED ⓘ Elmendorf Air Force Base NERFINISHED ⓘ Karamürsel Air Station NERFINISHED ⓘ Misawa Air Base NERFINISHED ⓘ RAF Chicksands NERFINISHED ⓘ San Vito dei Normanni Air Station NERFINISHED ⓘ |
| operatedBy |
United States Air Force
ⓘ
United States military NERFINISHED ⓘ |
| operationalPeriod |
1960s
ⓘ
1970s ⓘ 1980s ⓘ early 1990s ⓘ |
| partOf |
United States signals intelligence network
ⓘ
global HF direction-finding network ⓘ |
| purpose |
monitoring military and diplomatic communications
ⓘ
strategic and tactical intelligence collection ⓘ |
| relatedTo |
AN/FLR-9
NERFINISHED
ⓘ
HF/DF (high-frequency direction finding) ⓘ |
| shape | circular ⓘ |
| technologyType | high-frequency radio system ⓘ |
| typicalDiameter | several hundred meters ⓘ |
| usedBy |
North Atlantic Treaty Organization
NERFINISHED
ⓘ
allied intelligence services ⓘ |
| usedDuring | Cold War ⓘ |
| usedFor |
high-frequency direction finding
ⓘ
long-range communications interception ⓘ radio direction finding ⓘ signals intelligence ⓘ |
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: FLR-9 antenna array Description of subject: The FLR-9 antenna array is a large, circular high-frequency direction-finding system used during the Cold War for long-range signals intelligence and communications interception.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.