The system is called the Arctic Over-The-Horizon Radar (A-OTHR), and the deal is worth some US$1.75 billion to Australia.

Canada has taken the next step toward acquiring a highly sophisticated, long-range radar system to monitor the Arctic.

SINGAPORE—Australia and Canada have signed a new technology partnership agreement to enhance collaboration on Over the Horizon Radar (OTHR) systems. The agreement follows reports from March 2025 ...

Add Yahoo as a preferred source to see more of our stories on Google. Australian Defense Minister Richard Marles, left, and Canada's Secretary of State Stephen Fuhr speak to the media after signing an ...

Skywave over-the-horizon radar bounces illumination signals off the ionosphere to extend range. Credit: DARPA DARPA wants to harness the noisy radio frequency environment of the ionosphere to improve ...

Rural Oregonians are raising concerns over water, recreation, and greater sage-grouse habitat as the Air Force plans two over ...

OTTAWA — Canada and Australia have agreed on terms to allow Ottawa to buy components of the Arctic over-the-horizon radar system from BAE Systems Australia.

The prime minister's office said that the Canadian $4.2 billion “Over-the-Horizon Radar” system will provide early warning radar coverage from the Canada-United States border into the Arctic. IQALUIT, ...

Copyright 2026 The Associated Press. All Rights Reserved. Copyright 2026 The Associated Press. All Rights Reserved. Australian Defense Minister Richard Marles, left ...

This is read by an automated voice. Please report any issues or inconsistencies here. MELBOURNE, Australia — Australia and Canada signed a $1.75-billion export agreement on Monday to build an ...