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| TRUNKED RADIO RECORDING CHALLENGES AND SOLUTIONS: THE ISLE OF MAN EXPERIENCE |
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Trunked radio is establishing a foothold in every corner of the world, offering superior reliability and efficiency, and the opportunity for improved communication. Still, for its many benefits, trunked radio poses one perplexing problem. The dynamic nature of trunked radio creates new challenges when it comes to recording and retrieving these communications.
In the spring of 2004, the Isle of Man Government embarked on a multi-phase communications improvement plan. The plan called for investment in a new trunked radio system and consolidation of multiple emergency centers under a single joint control center. With these changes, the Isle of Man realized it needed an integrated approach to recording too. The Island opted for a turnkey solution from Motorola, integrating Motorola's Dimetra system and trunked radio recording from NICE. "We wanted a centralized solution that had a proven track record of successfully interfacing with a TETRA radio system," said Robert Williamson, technical director for the Isle of Man Government's Department of Home Affairs' Communications Division. The Island's new system records all TETRA radio transmissions and command and control center calls, storing these recordings on hard disks. It also captures trunked radio data from the Dimetra system to facilitate call retrieval.
The Communications Division fields about 60 requests to provide recordings and transcripts each month. "We receive requests to search by radio ID, by talkgroups or by time or by event. So it's a varied list," says Williamson." The new system has saved the agency time and money. "If we took a request for recordings for a road traffic accident before," he notes, "it would probably have taken a good day for the three services to pull that information together." Today, that same job can probably be done in about an hour.
But according to Williamson, the Island's recording system is potentially protecting and saving something far more valuable. "If there are disputes or allegations, we're able to prove or disprove them by going to the recordings," says Williamson. He cites one specific instance where the recording system proved indispensable. "We had a very bad accident on our roads last year. By having full recording of everything that went on in that instant, we were able to provide evidence to the coroner's court that indicated exactly what actions were taken by the police and the ambulance service during that incident." And that, said Williamson, is the biggest benefit of all.
Click Here to read the complete article on "Trunked Radio Recording Challenges and Solutions: The Isle of Man Experience" as it appeared in the Q4 2005 issue of Radio Resource International Magazine. The cover story, authored by NICE Systems' Jimmy Lutz, highlights the Isle of Man experience and examines the different methods for recording trunked radio and the benefits and shortcomings of each.
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