LTR™Trunking

Originally launched in the USA, systems based on this protocol are in use around the world. EFJohnson, (now a part of Transcrypt International), developed the LTR protocol. The LTR protocol uses analogue voice channels and an analogue signalling scheme on the control channel.

Typical application sectors include public access mobile radio, service and maintenance, industrial, and security. Because it is an established protocol, LTR is popular for trunked radio systems that focus on traditional dispatch applications in a specific region.

Zetron’s LTR-compatible infrastructure is modular and allows a range of systems—from single-site to multi-regional switched networks. Zetron has integrated the ability to co-exist with conventional systems on the same channel. This feature, “cross-busy,” simplifies the refarming of conventional radio users that is currently underway in many parts of the world.

Comsource currently uses LTR controllers in conjunction with Motorola Repeaters, ideal for small campuses, small minesites, and offshore platforms.

For any enquiries please contact us.