Grimeton Radio Station
E368958
Grimeton Radio Station is a historic Swedish long-wave radio transmission facility, recognized as a UNESCO World Heritage Site for its exceptionally well-preserved early 20th-century radio technology.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Grimeton Radio Station canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3575951 — 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: Grimeton Radio Station Context triple: [Alexanderson alternator, preservedAt, Grimeton Radio Station]
-
A.
VGTZ station
VGTZ station is a stop on the Volgograd Metrotram system in Volgograd, Russia, serving the nearby Volgograd Tractor Plant (VGTZ) industrial area.
-
B.
Hydra radio station
Hydra radio station was a clandestine World War II broadcasting facility associated with Camp X that played a key role in Allied communications and intelligence operations.
-
C.
Station HYPO
Station HYPO was a U.S. Navy signals intelligence and cryptanalysis unit in Hawaii that played a crucial role in breaking Japanese naval codes and enabling the American victory at the Battle of Midway.
-
D.
Savage station
Savage station is a commuter rail stop in Savage, Maryland, serving passengers on MARC's Camden Line between Washington, D.C., and Baltimore.
-
E.
Penn Radio
Penn Radio was a talk radio show hosted by magician and entertainer Penn Jillette, featuring his commentary, interviews, and comedic discussions on a wide range of topics.
- 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: Grimeton Radio Station Target entity description: Grimeton Radio Station is a historic Swedish long-wave radio transmission facility, recognized as a UNESCO World Heritage Site for its exceptionally well-preserved early 20th-century radio technology.
-
A.
VGTZ station
VGTZ station is a stop on the Volgograd Metrotram system in Volgograd, Russia, serving the nearby Volgograd Tractor Plant (VGTZ) industrial area.
-
B.
Hydra radio station
Hydra radio station was a clandestine World War II broadcasting facility associated with Camp X that played a key role in Allied communications and intelligence operations.
-
C.
Station HYPO
Station HYPO was a U.S. Navy signals intelligence and cryptanalysis unit in Hawaii that played a crucial role in breaking Japanese naval codes and enabling the American victory at the Battle of Midway.
-
D.
Savage station
Savage station is a commuter rail stop in Savage, Maryland, serving passengers on MARC's Camden Line between Washington, D.C., and Baltimore.
-
E.
Penn Radio
Penn Radio was a talk radio show hosted by magician and entertainer Penn Jillette, featuring his commentary, interviews, and comedic discussions on a wide range of topics.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
UNESCO World Heritage Site
ⓘ
historic site ⓘ long-wave radio station ⓘ radio station ⓘ |
| alsoKnownAs |
Alexanderson station at Grimeton
ⓘ
SAQ ⓘ |
| annualEvent |
Alexanderson Day transmissions
ⓘ
UN Day transmissions ⓘ |
| antennaTowerHeight | 127 m ⓘ |
| antennaType | multiple-wire antenna ⓘ |
| broadcastStatus | no regular commercial service ⓘ |
| builtFor | transatlantic radio communication ⓘ |
| commissioned | 1924 ⓘ |
| constructionStart | 1922 ⓘ |
| coordinates | 57.104°N 12.390°E ⓘ |
| country | Sweden ⓘ |
| currentOperator | Alexander Association ⓘ |
| currentUse |
heritage demonstration station
ⓘ
museum ⓘ |
| designedBy | Ernst Alexanderson ⓘ |
| frequency | 17.2 kHz ⓘ |
| hasMuseum | World Heritage Grimeton Radio Station visitor center ⓘ |
| hasTransmitterType | alternator transmitter ⓘ |
| heritageDesignation | UNESCO World Heritage Site ⓘ |
| heritageValue | exceptionally well-preserved early 20th-century radio technology ⓘ |
| inception | 1922 ⓘ |
| locatedIn |
Grimeton
ⓘ
Halland County ⓘ Varberg ⓘ
surface form:
Varberg Municipality
west coast of Sweden ⓘ |
| numberOfAntennaTowers | 6 ⓘ |
| officialName | Varberg Radio Station at Grimeton ⓘ |
| openToPublic | yes ⓘ |
| operator | Swedish Telecommunication Administration ⓘ |
| partOf | early global radio communication network ⓘ |
| primaryFunction | long-wave telegraphy ⓘ |
| significance |
one of the last remaining operational Alexanderson alternator transmitters
ⓘ
represents early transatlantic wireless communication infrastructure ⓘ |
| transmissionType | continuous wave telegraphy ⓘ |
| UNDayTransmissionFrequency | 17.2 kHz ⓘ |
| UNDayTransmissionMode | Morse code ⓘ |
| UNESCOWorldHeritageCriteria |
criterion (ii)
ⓘ
criterion (iv) ⓘ |
| UNESCOWorldHeritageListingYear | 2004 ⓘ |
| UNESCOWorldHeritageRegion | Europe and North America ⓘ |
| UNESCOWorldHeritageSiteId | 1134 ⓘ |
| usesTechnology | Alexanderson alternator ⓘ |
| wavelength | about 17,442 m ⓘ |
| website | https://grimeton.org ⓘ |
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: Grimeton Radio Station Description of subject: Grimeton Radio Station is a historic Swedish long-wave radio transmission facility, recognized as a UNESCO World Heritage Site for its exceptionally well-preserved early 20th-century radio technology.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
associated with UNESCO World Heritage Site Grimeton Radio Station
→
usedAt
→
Grimeton Radio Station
ⓘ
subject surface form:
Alexanderson alternator
associated with UNESCO World Heritage Site Grimeton Radio Station
→
associatedWith
→
Grimeton Radio Station
ⓘ
subject surface form:
Alexanderson alternator