Two-Way Radio Systems - Two Way Radio Communication
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In two-way radio systems Quasi-Sync, also often referred to as Simulcast, refers to the practice of transmitting a signal (usually voice) to a group of mobile units across a wide geographic area via multiple transmitters. Quasi-Sync allows multiple RF transmitters using a single identical frequency to provide this extended coverage. This is especially important in applications that require wide-area coverage while still preserving limited radio spectrum bandwidth or channels. SOLAR is an integrated system that can provide Quasi-Sync capability using a user supplied IP Network to connect all system elements.
The SOLAR module features include
- Digital interconnection links (either internet or Intranet)
- Synchronization of input to Base Station Transmitters, automatically compensating for link delay
- Can incorporate a voter, which automatically selects the best Base Station Receiver
- A 1PPS input from a GPS receiver to synchronise each site
- 8 controls and 8 monitor I/Os to facilitate remote supervision of the local environment.
- Supervision features enable the user at the Central Interface Unit to determine the status of that Unit, the Station Unit and Environment.
- The COSMOS family, which is an analogue version of SOLAR and used in non-IP applications, is also available upon request.