Homonym: TETRA (Shape)
TETRA, which stands for Terrestrial Trunked Radio, is a digital communication standard designed for professional mobile radio users. It is widely used by emergency services, public safety organizations, and transportation sectors for secure and reliable voice and data communication. TETRA systems operate in various frequency bands and provide features like group calls, individual calls, and text messaging.
The technology enhances communication efficiency and interoperability among different agencies. TETRA networks are known for their robustness, allowing users to maintain communication even in challenging environments. This makes it an essential tool for organizations such as police, fire departments, and ambulance services.