P25 Simulcast solution

Announced at IWCE 2012, Daniels Electronics Ltd.'s new P25 Simulcast solution has been built on the P25 Voter announced last year, the P25 Simulcast solution allows a single P25 signal to be simultaneously broadcast using two or more geographically separated radio transmitters.

For extended or improved coverage, multiple receivers can be installed on the same frequency. When the Subscriber Unit transmits, many (and possibly all) of the receivers may hear the transmission depending on the location of the Subscriber Unit. The voter will then determine and select the "best" received signal from all the signals received. The best signal is then rebroadcast simultaneously from the base station transmitters allowing improved talk-back capability between mobiles in the field. As shown in the diagram below for a 3 site simulcast voted system with multiple transmitters, each receiver receives the signal from the Subscriber Unit. These signals are then evaluated and compared, and the best possible representation of the signal received is passed to the Daniels P25 voter.

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