DANIELS ELECTRONICS LAUNCHES P25 SIMULCAST SOLUTION
Victoria, B.C. Canada – February 13th, 2012 - Daniels Electronics Ltd., a leading global supplier of high reliability Land Mobile Radio (LMR) radio equipment, today announced the introduction of its new P25 Simulcast solution. Building 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.
The Daniels P25 Simulcast Voting System is based on the versatile and proven MT-4E conventional radio system. P25 Simulcast Voting requires no changes to existing MT-4E radios and is supported in all the P25 frequency bands (VHF, UHF, T-Band, 700 and 800 MHz). As shown in the diagram above, each Receiver site consists of a Daniels subrack along with the Daniels Simulcast Voter. An industrial PC then receives all the voted received signals and sends the result to the transmitter sites.
About Daniels Electronics Ltd.
Daniels Electronics Ltd. is an international leader in the design, manufacture and service of specialized radio communications equipment based upon North American standards. For the past 60 years Daniels has provided customers in North America and internationally with highly reliable base stations, repeaters and paging equipment that is environmentally robust and operates in rugged and extreme temperature conditions where low current consumption is a key requirement. For more information about Daniels Electronics, visit www.danelec.com.