Canada to buy cutting-edge radar from Australia. The radar can monitor air and sea movements wave heights and wind directions across 37,000 square kilometres (14,000 sq mi). It has a normal operating range of 1,000–3,000 kilometres (620–1,860 mi).

19 Mar 2025 - Canada swoops in front of US to buy world-leading Australian radar technology | ABC News (Australia)

19 Mar 2025 - Australia's 'biggest defence export' was meant to go to the US first, but Canada snuck past Donald Trump

Canada was always meant to follow the United States in acquiring world-leading Australian radar technology but "things moved quickly" after Donald Trump won the US presidency.

Canada's Prime Minister Mark Carney confirmed the $6.5 billion JORN purchase overnight, after a conversation with Prime Minister Anthony Albanese.

https://www.abc.net.au/news/2025-03-19/canada-snuck-past-trump-buy-jorn-defence-radar/105069292

Jindalee Operational Radar Network - Wiki

The Jindalee Operational Radar Network (JORN) is an over-the-horizon radar (OHR) network operated by the Royal Australian Air Force (RAAF) that can monitor air and sea movements across 37,000 square kilometres (14,000 sq mi).^{[citation needed]} It has a normal operating range of 1,000–3,000 kilometres (620–1,860 mi).^[1] The network is used in the defence of Australia, and can also monitor maritime operations, wave heights and wind directions.

https://en.wikipedia.org/wiki/Jindalee_Operational_Radar_Network