SCI Home > Services > What is a Hybrid LMR System?

01  Why do we need LMR?

02  What is a Conventional LMR System?

03  What is a Trunked LMR System?

04  What is a Hybrid LMR System?

As its name indicates, hybrid systems are a combination of conventional and trunked systems.  A hybrid system offers both conventional and trunked user groups and features within a single system.  There are two major reasons for hybrid architectures.  The first is cost.  It may not be cost-effective to have a trunked site in an area with a few users; therefore, a conventional site would be a better alternative, but the conventional site would be part of a system with trunked portions serving areas with higher user density.  The second reason is call setup delay.  Because immediate communication is critical for user groups such as public safety agencies, conventional channels can be chosen to provide dedicated access with little or no call setup delay.  However, large user organizations may include other user groups that are willing to accept the delay on trunked channels to take advantage of the capacity increase provided by trunking.  Thus, a hybrid system architecture would provide conventional and trunked overlays in one system.

05  What does Interoperability mean?