A multiple linked repeater system provides radio coverage over long distances. In applications where the distance has become too long or the coverage provided is too restricted for a single repeater, more repeaters are needed to enable radio users to communicate over a greater distance.
By establishing a series of repeater sites, a chain can be linked together to provide radio coverage over a large area. At each link site, one or two radios may be used to provide local coverage or aircraft coverage.
Radio Routing
A series of repeaters can be configured with Codan Multiple Link Controllers to operate in different ways, depending upon the NAC code, CTCSS or DTMF received. For instance, subscribers could send one NAC to talk through a Codan radio system as a local repeater.
If the subscriber sent a different NAC, they could bring up every other repeater in the chain and talk to all other subscribers on the network as part of an ALL CALL. Alternatively, the subscriber could enter a different NAC to address an individual repeater. Since Codan Multiple Link Controllers steer or “route” the radio signal, the Multiple Link Controller may be called a “Radio Router.”
VOIP Linked Repeater Systems
In instances where it is not practical to link the repeaters together via radio transmissions, a local (LAN) or wide area network (WAN) can be used at the repeater sites to link them together. Using existing network infrastructure eliminates the need for leased lines, microwave, or radio links and also enables repeaters to be located in areas where line-of-sight paths between repeater sites may be difficult. A network extension unit is connected at both repeater sites enables PTT/COR and audio signals to be sent across the LAN/WAN, to and from the remotely located repeaters.
