VHF
E381975
VHF (Very High Frequency) is a radio frequency range from 30 to 300 MHz widely used for communication, broadcasting, and navigation systems such as the Gee navigation system.
All labels observed (3)
| Label | Occurrences |
|---|---|
| VHF canonical | 1 |
| VHF radio | 1 |
| VHFairbandRadio | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3717766 — 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: VHF Context triple: [Gee navigation system, frequencyBand, VHF]
-
A.
HF/DF
HF/DF is a World War II-era high-frequency direction-finding radio system used primarily by Allied navies to locate enemy transmissions, especially from German U-boats.
-
B.
Citizens Band
Citizens Band is a 1977 American comedy film, also known as "Handle with Care," that satirically explores small-town life and relationships through the emerging CB radio craze.
-
C.
HVF
HVF is a data-focused startup and innovation lab created by entrepreneur Max Levchin to explore and build companies around large-scale data problems.
-
D.
RVR
RVR is the standard abbreviation for the Reina-Valera, a widely used Spanish translation of the Bible.
-
E.
HVC
HVC is a specialized song-control nucleus in the zebra finch brain that plays a key role in the learning and production of birdsong.
- 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: VHF Target entity description: VHF (Very High Frequency) is a radio frequency range from 30 to 300 MHz widely used for communication, broadcasting, and navigation systems such as the Gee navigation system.
-
A.
HF/DF
HF/DF is a World War II-era high-frequency direction-finding radio system used primarily by Allied navies to locate enemy transmissions, especially from German U-boats.
-
B.
Citizens Band
Citizens Band is a 1977 American comedy film, also known as "Handle with Care," that satirically explores small-town life and relationships through the emerging CB radio craze.
-
C.
HVF
HVF is a data-focused startup and innovation lab created by entrepreneur Max Levchin to explore and build companies around large-scale data problems.
-
D.
RVR
RVR is the standard abbreviation for the Reina-Valera, a widely used Spanish translation of the Bible.
-
E.
HVC
HVC is a specialized song-control nucleus in the zebra finch brain that plays a key role in the learning and production of birdsong.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
electromagnetic spectrum band
ⓘ
radio frequency band ⓘ |
| abbreviationFor | Very High Frequency ⓘ |
| advantage |
good for mobile and portable radios
ⓘ
less atmospheric noise than lower frequency bands ⓘ supports relatively small antenna sizes ⓘ |
| containsSubBand |
VHF high band
ⓘ
VHF low band ⓘ |
| definedBy | International Telecommunication Union ⓘ |
| disadvantage |
limited range by horizon for ground-based stations
ⓘ
more affected by terrain obstructions than lower frequencies ⓘ |
| frequencyRangeLower | 30 MHz ⓘ |
| frequencyRangeUpper | 300 MHz ⓘ |
| fullName | Very High Frequency ⓘ |
| hasPropagationCharacteristic |
can experience sporadic E-layer propagation
ⓘ
limited ground-wave range ⓘ line-of-sight dominated propagation ⓘ subject to tropospheric refraction ⓘ |
| ITUDesignation | VHF band ⓘ |
| partOf |
electromagnetic spectrum
ⓘ
radio spectrum ⓘ |
| relatedBandAbove | UHF ⓘ |
| relatedBandBelow | HF ⓘ |
| standardizedBy |
ITU Radiocommunication Sector
ⓘ
surface form:
ITU-R
|
| typicalServiceAllocation |
108–137 MHz aeronautical navigation and communication
ⓘ
137–174 MHz land mobile and marine ⓘ 174–230 MHz television broadcasting ⓘ 230–300 MHz land mobile and military ⓘ 30–88 MHz military land mobile ⓘ 88–108 MHz FM broadcast band ⓘ |
| unitOfFrequency | hertz ⓘ |
| usedFor |
FM radio broadcasting
ⓘ
Gee navigation system ⓘ aeronautical communication ⓘ air traffic control communication ⓘ amateur radio ⓘ broadcasting ⓘ data communication ⓘ land mobile radio ⓘ marine communication ⓘ meteorological aids ⓘ military communication ⓘ navigation systems ⓘ public safety radio ⓘ radio communication ⓘ television broadcasting ⓘ two-way radio communication ⓘ |
| wavelengthRangeLower | 1 meter ⓘ |
| wavelengthRangeUpper | 10 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: VHF Description of subject: VHF (Very High Frequency) is a radio frequency range from 30 to 300 MHz widely used for communication, broadcasting, and navigation systems such as the Gee navigation system.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
VHF radio
this entity surface form:
VHFairbandRadio