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Thu 11 Nov 2002Emergency radio may disrupt pacemakersA mobile communications system - a digital form of the familiar "walkie-talkie" - which is used by police, firemen and paramedics in 50 countries, has been found to interfere with critical life-saving medical equipment, according to a report.The Tetra system, short for Terrestrial Trunked Radio, is currently "live" only on a pilot network in the State, under the auspices of the Office of the Director of Telecommunications (ODTR).