Nav Canada introduced ADS-B coverage over the Hudson Bay, eliminating "an 850,000-sq.-km. gap in Canada's radar coverage," the air navigation services provider said. The first use of ADS-B involved an Air New Zealand Jan. 15 flight from London Heathrow to Los Angeles. Sensis Corp. is supplying Nav Canada with ground equipment consisting of an antenna, a receiver and a target processor installed at stations along the Hudson shoreline. To use ADS-B airspace, aircraft require the proper ...

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