TETRA
A digital trunked radio standard used mainly outside North America.
ModeTETRA
FamilyDigital voice
Audio exampleComing
What does it sound like?
Plate 66Digital voice
A continuous, dense digital hiss.
Field marksFour time slots per channel25 kHz channels
Who uses it?
Emergency services, transport and utilities, mostly in Europe and elsewhere.
Where and when can I hear it?
Around 380-400 MHz for emergency services in Europe, and other UHF bands.
Easily confused with
- DMR digital voice, from the same family
- P25 digital voice, from the same family
- D-STAR digital voice, from the same family