Editing Nav Canada (section)

===Hudson Bay ADS-B deployment===
In the mid-2000s, the company decided to address the lack of radar coverage in the Canadian north, especially in the area of [[Hudson Bay]] where airliners transition from the [[North Atlantic Tracks]] system to [[Canadian Domestic Airspace]] by deploying a ground-based [[Automatic Dependent Surveillance-Broadcast]] (ADS-B) network. The five station network was operational on 15 January 2009, filling a {{convert|850000|sqkm|sqmi|abbr=on}} gap in radar coverage which allowed reduced separation of airline flights by ADS-B tracking over procedural separation. In January 2009, Nav Canada estimated that the ADS-B system would save its customers 18 million litres of fuel per year and reduce {{CO2}} and equivalent emissions by {{convert|50000|t|lb|abbr=on}} per year.<ref name="ADS-B"/><ref>{{cite web|url=http://www.obj.ca/Other/Archives/2009-01-22/article-2303333/NAV-Canada-deploys-surveillance-coverage-over-Hudson-Bay/1|title=NAV Canada deploys surveillance coverage over Hudson Bay|publisher=Ottawa Business Journal|access-date=18 February 2015|archive-url=https://web.archive.org/web/20160304032608/https://www.obj.ca/Other/Archives/2009-01-22/article-2303333/NAV-Canada-deploys-surveillance-coverage-over-Hudson-Bay/1|archive-date=2016-03-04}}</ref><ref>{{cite web|url=https://www.wingsmagazine.com/news/breakthrough-technology-brings-air-traffic-surveillance-to-hudson-bay-2369|title=Breakthrough technology brings air traffic surveillance to Hudson Bay|work=wingsmagazine.com|date=26 January 2009 |access-date=18 February 2015}}</ref>

In November 2010, a second set of six ground-based ADS-B transceivers was later deployed along the coast of [[Labrador]] and [[Nunavut]], providing an additional {{convert|1980000|sqkm|sqmi|abbr=on}}. In March 2012 four more stations were added in [[Greenland]], increasing the area covered by {{convert|1320000|sqkm|sqmi|abbr=on}}.<ref name="ADS-B"/>