FuG 220 Lichtenstein SN-2 radar
E205732
The FuG 220 Lichtenstein SN-2 radar was a German World War II airborne interception radar system used primarily by night fighters to detect and engage enemy aircraft in low-visibility conditions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| FuG 220 Lichtenstein SN-2 radar canonical | 2 |
| FuG 220 Lichtenstein SN-2 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1815440 — 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: FuG 220 Lichtenstein SN-2 radar Context triple: [Heinkel He 219, radarEquipment, FuG 220 Lichtenstein SN-2 radar]
-
A.
FuG 212 Lichtenstein C-1 radar
The FuG 212 Lichtenstein C-1 was a German World War II airborne interception radar set used primarily by night fighters to detect and engage enemy aircraft in darkness or poor visibility.
-
B.
AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
-
C.
MPS-36 radar
The MPS-36 radar is a ground-based tracking radar system used at the U.S. Army’s missile test range on Kwajalein Atoll to support missile and space object detection and trajectory measurement.
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D.
AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
-
E.
AN/MPQ-65 radar
The AN/MPQ-65 radar is an advanced multifunction phased-array radar used in later variants of the Patriot air and missile defense system, providing improved target detection, tracking, and engagement capabilities over its predecessor.
- 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: FuG 220 Lichtenstein SN-2 radar Target entity description: The FuG 220 Lichtenstein SN-2 radar was a German World War II airborne interception radar system used primarily by night fighters to detect and engage enemy aircraft in low-visibility conditions.
-
A.
FuG 212 Lichtenstein C-1 radar
The FuG 212 Lichtenstein C-1 was a German World War II airborne interception radar set used primarily by night fighters to detect and engage enemy aircraft in darkness or poor visibility.
-
B.
AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
-
C.
MPS-36 radar
The MPS-36 radar is a ground-based tracking radar system used at the U.S. Army’s missile test range on Kwajalein Atoll to support missile and space object detection and trajectory measurement.
-
D.
AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
-
E.
AN/MPQ-65 radar
The AN/MPQ-65 radar is an advanced multifunction phased-array radar used in later variants of the Patriot air and missile defense system, providing improved target detection, tracking, and engagement capabilities over its predecessor.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
German military radar system
ⓘ
World War II military equipment ⓘ airborne interception radar ⓘ |
| alternateName | Lichtenstein SN-2 ⓘ |
| antennaNickname | Hirschgeweih ⓘ |
| antennaNicknameTranslation | stag’s antlers ⓘ |
| antennaType | Yagi antenna array ⓘ |
| azimuthCoverageApproximate | 120 degrees ⓘ |
| conflict | World War II ⓘ |
| countryOfOrigin | Nazi Germany ⓘ |
| designation | FuG 220 ⓘ |
| designedFor | night fighters ⓘ |
| designedToCounter | RAF Bomber Command night bombing offensive ⓘ |
| displayType | cathode-ray tube display ⓘ |
| elevationCoverageApproximate | 60 degrees ⓘ |
| era | 1940s ⓘ |
| frequencyBand | VHF ⓘ |
| guides | interception of enemy bombers at night ⓘ |
| improvementOver |
FuG 202 Lichtenstein B/C radar in range
ⓘ
FuG 202 Lichtenstein B/C radar in resistance to jamming ⓘ |
| introducedInPeriod | 1943 ⓘ |
| manufacturer | Telefunken ⓘ |
| maximumRangeApproximate | 4 km ⓘ |
| minimumRangeApproximate | 500 m ⓘ |
| notableFeature |
large external antenna array increasing drag on aircraft
ⓘ
longer wavelength than earlier Lichtenstein sets ⓘ |
| operatingFrequencyApproximate | 90 MHz ⓘ |
| operatorCrewPosition | radar operator ⓘ |
| partOfSeries | Lichtenstein radar family ⓘ |
| platformType | aircraft-mounted radar ⓘ |
| powerSource | aircraft electrical system ⓘ |
| primaryRole |
airborne interception
ⓘ
night fighter radar ⓘ |
| replaced |
FuG 202 Lichtenstein B/C radar
ⓘ
FuG 212 Lichtenstein C-1 radar ⓘ |
| typicalDetectionRangeAgainstBomber | 3 to 4 km ⓘ |
| typicalPlatform |
Focke-Wulf Ta 154
ⓘ
surface form:
Focke-Wulf Ta 154 night fighter
Heinkel He 219 ⓘ
surface form:
Heinkel He 219 night fighter
Junkers Ju 88 ⓘ
surface form:
Junkers Ju 88 night fighter
Messerschmitt Bf 110 ⓘ
surface form:
Messerschmitt Bf 110 night fighter
|
| usedBy | Luftwaffe ⓘ |
| usedFor |
detection of enemy aircraft
ⓘ
engagement of enemy aircraft in low-visibility conditions ⓘ |
| usedInEnvironment |
low-visibility conditions
ⓘ
night operations ⓘ |
| usedInTactics | German night air defense system ⓘ |
| wavelengthApproximate | 3.3 meters ⓘ |
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: FuG 220 Lichtenstein SN-2 radar Description of subject: The FuG 220 Lichtenstein SN-2 radar was a German World War II airborne interception radar system used primarily by night fighters to detect and engage enemy aircraft in low-visibility conditions.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Heinkel He 219
this entity surface form:
FuG 220 Lichtenstein SN-2