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Florida City Deploys Motorola P25 Phase 2 Trunked System (6/25/12)
The city of Apopka, Fla., deployed and accepted what Motorola Solutions called the world’s first dual-mode Project 25 (P25) TDMA trunked system.
The P25 communications system is being used by Apopka police, fire and emergency management personnel, as well as by Apopka public works. The system gives Apopka enhanced coverage and interoperability with surrounding agencies using 700 and 800 MHz frequencies, without the need for adding frequency bands, antenna sites or stations, said a Motorola statement.
Apopka is using 85 Motorola multiband mobile radios and 250 multiband portable radios. P25 TDMA technology enabled Apopka to double channel capacity from five to 10 channels for more efficient use of spectrum and improved system access to manage emergencies.
Apopka public-safety agencies operating on 800 MHz TDMA can communicate with Apopka public works and neighboring agencies using 700 MHz FDMA technology. The software feature offers seamless interoperability between P25 FDMA and TDMA users, dynamically allocating a call based on available resources without any user intervention or awareness, Motorola officials said.
“Multiple agencies share our system; it did not matter that we adopted P25 TDMA and some others have not done so,” said Richard Anderson, chief administrative officer, city of Apopka. “We can communicate seamlessly with all of them, including public works operating in 700 MHz FDMA.”
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