TETRA
E565183
TETRA is a professional mobile radio and wireless communications standard widely used by public safety, emergency services, and critical infrastructure organizations for secure, reliable digital voice and data.
All labels observed (1)
| Label | Occurrences |
|---|---|
| TETRA canonical | 3 |
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
digital trunked radio standard
ⓘ
professional mobile radio standard ⓘ wireless communications standard ⓘ |
| abbreviationOf | Terrestrial Trunked Radio NERFINISHED ⓘ |
| competesWith |
DMR
NERFINISHED
ⓘ
Project 25 NERFINISHED ⓘ TETRAPOL NERFINISHED ⓘ |
| developedBy | European Telecommunications Standards Institute NERFINISHED ⓘ |
| firstStandardizedIn | 1990s ⓘ |
| formerlyKnownAs | Trans-European Trunked Radio NERFINISHED ⓘ |
| fullName | Terrestrial Trunked Radio NERFINISHED ⓘ |
| hasFeature |
dispatcher functions
ⓘ
interoperability between vendors ⓘ network-wide roaming ⓘ voice and data integration ⓘ |
| hasVersion |
TETRA Release 1
NERFINISHED
ⓘ
TETRA Release 2 NERFINISHED ⓘ |
| operatesIn |
UHF frequency bands
ⓘ
VHF frequency bands ⓘ |
| provides |
emergency call features
ⓘ
fast call setup ⓘ priority and pre-emption mechanisms ⓘ reliable communications ⓘ secure communications ⓘ |
| regionOfOrigin | Europe NERFINISHED ⓘ |
| standardizedBy | ETSI NERFINISHED ⓘ |
| supports |
air interface encryption
ⓘ
broadcast calls ⓘ direct mode operation ⓘ encryption ⓘ end-to-end encryption ⓘ gateway mode ⓘ group calls ⓘ individual calls ⓘ packet data ⓘ repeater mode ⓘ short data service ⓘ trunked radio operation ⓘ |
| usedBy |
critical infrastructure operators
ⓘ
emergency medical services ⓘ emergency services ⓘ fire and rescue services ⓘ government agencies ⓘ military organizations ⓘ police services ⓘ public safety organizations ⓘ transportation operators ⓘ utilities companies ⓘ |
| usedFor |
digital data services
ⓘ
mission-critical communications ⓘ professional mobile radio communications ⓘ secure digital voice ⓘ |
| uses |
25 kHz channel spacing
ⓘ
TDMA access method ⓘ four-slot TDMA ⓘ |
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: TETRA Description of subject: TETRA is a professional mobile radio and wireless communications standard widely used by public safety, emergency services, and critical infrastructure organizations for secure, reliable digital voice and data.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
iDEN