Introduction – Why Now Matters
Canada has entered a period of accelerated defence investment. A new federal government has committed to meeting NATO spending benchmarks, and operational commanders are under pressure to demonstrate tangible capabilities quickly. Nowhere is the gap more visible than in the Arctic, where maritime domain awareness remains fragile despite being central to sovereignty, national security, and alliance credibility.
Over recent winters, the Canadian Armed Forces have led their Operation Nanook- TUUGAALIK, the maritime component of Canada’s annual exercise to project presence, test arctic readiness, and assert sovereignty. That activity underscores the urgency of deploying sensing capabilities in the region — capabilities that can offer persistent maritime awareness beyond the line-of-sight, complementing patrols and force presence.
Radar coverage in the North is partial and fragmented often reliant on technologies never designed for Arctic conditions. Traditional X-band coastal radars see 10 to 30 nautical miles offshore not far enough to allow enough time for operators to make decisions, respond and take action to address encroaching maritime threats. Satellites provide snapshots in time but not persistent tracking. The recently announced Canada–Australia partnership for the JORN Over-the-Horizon Radar (OTHR) will provide northward coverage for continental-scale air and missile detection, but it will not be optimized for tracking vessels threading through arctic straits.
The good news is that Canada already has another tool at its disposal—one developed here, proven here, and available for rapid deployment: High Frequency Surface Wave Radar (HFSWR), which can provide persistent monitoring of vessel traffic up to 200 nautical miles (350km) from the shore. Because it is radar, it works day and night in all weather. It has the capability to detect ships that are not transmitting their Automatic Identification System or they are spoofing their true location, current practices of the Russians and illegal Chinese fishing fleet.
The Gap in the Current Toolkit
Operational commanders face a dilemma. Existing sensors each contribute a piece of the maritime domain awareness puzzle, but none close the Arctic sovereignty gap on their own:
- X-band coastal and shipborne radars are highly precise but limited in range. To cover thousands of kilometres of Arctic coastline, hundreds of such radars would be needed—impractical in cost and logistics.
- Satellites provide invaluable surveillance but are limited by revisit times, weather, and cost. They cannot guarantee 24/7 persistence.
- Skywave OTHR systems like JORN, while vital for detecting threats thousands of kilometres away, are not optimized for tracking vessels or aircraft close to Canadian shores. Its wide-area perspective complements, but does not replace, direct monitoring of the exclusive economic zone of 200 nautical miles in key chokepoints.
In short, Canada has strategic tools for global and continental scale awareness, but we lack the persistent mid-range coverage required for everyday sovereignty tasks: territorial incursion, fisheries enforcement, shipping safety, search and rescue, and early warning in Arctic approaches.
Canada’s Hidden Asset: 35 Years of World Leadership
Canada’s High-Frequency Surface Wave Radar (HFSWR) capability reflects more than three decades of investment and development, led by Raytheon Canada in close partnership with the Government of Canada. This foundation created a world-class radar technology and proved its operational maturity first at Hartlen Point, Nova Scotia and most recently at Cape Race, Newfoundland.
Since assuming commercialization responsibility, in 2019, Maerospace has invested a further six years in advancing the system to a fourth-generation design at the highest technology readiness level (i.e. operationally deployed): a standardized, deployable product rather than a bespoke research platform. With the acquisition of Northern Radar Incorporated—the team behind all prior Canadian HFSWR antenna subsystems—the full electronics, software, and antenna expertise now reside within one company. For the first time, Canada has under one roof a complete capability to deliver turnkey solution for arctic maritime surveillance. At the same time, Raytheon Canada’s program management and in-service support, and other strengths remain as valuable components of any Canadian deployments.
Unlike conventional coastal radars limited to line-of-sight, HFSWR exploits the conductive properties of seawater to bend radio waves along the surface of the Earth. This allows reliable detection of ships hundreds of nautical miles beyond the horizon, day and night, in all weather conditions. The current Cape Race installation demonstrates persistent 24/7 coverage under contract, confirming the technology’s operational readiness. An earlier testing site at Hartlen Point, developed by DRDC and Raytheon Canada, remains non-operational but could be reactivated and upgraded quickly to provide coverage of the critical approaches to the busy Halifax Bay area and the St. Lawrence Seaway.
HFSWR complements the more ambitious OTHR radar program. OTHR provides the strategic ultra-wide-area picture. HFSWR fills the tactical gaps closer to Canadian shores—especially in the Arctic, where sovereignty is demonstrated not in theory but by detecting and assessing vessels before they are allowed to enter the Arctic Archipelago, thus minimizing the risk to safety and the environment.
The data generated by the HFSWR will not only feed our maritime security operational centers (MSOC) but it can also feed the headquarters of NORAD which also has a maritime warning mission.
Rapid Deployment Pathways
The urgency of today’s defence environment requires capabilities that can be fielded quickly. HFSWR is uniquely suited to meet that demand:
- Deployment in weeks to months: Existing facilities such as Cape Race can be re-deployed, providing near-term operational coverage.
- Deployment in 12–18 months: New Arctic sites could be established using existing Canadian bases and infrastructure, delivering persistent northern coverage within a single budget cycle.
- Scalability: A small number of installations can cover vast arctic approaches and provide maritime intelligence to direct expensive aircraft to exactly where they are needed.
For operational commanders, this means real capability on the timescale of operations, not large-program procurement and implementation cycles.
Strategic Relevance for Canada
The implications of rapid HFSWR deployment extend beyond technical performance:
- Arctic Sovereignty: Persistent surveillance is the foundation of sovereignty. Without it, presence and enforcement are reactive at best. With it, Canada can demonstrate control over Arctic waters in real time.
- NATO and NORAD Contributions: HFSWR can strengthen North American defence by closing gaps in the North and helps Canada meet alliance expectations for concrete, near-term capability increases.
- Coast Guard and DND Synergy: With the Coast Guard now more closely aligned to defence, HFSWR supports dual missions—military security and civil safety (foreign incursions, SAR, fisheries, interdiction, environmental response).
- Canadian Innovation and Pride: This is not imported technology. It is a Canadian solution to a Canadian challenge, one that signals both sovereignty and technological leadership as suggested by Prime Minister Carney.
With strong home-country support, this technology can rapidly generate exports to aid our allies in combating their own maritime threats.
Protecting the Northwest Passage
The key challenge for Canada is to exert its sovereignty in the Arctic and to ensure that ships entering its waters are safe for the country and our environment. The entrances to the Northwest Passage on the east and west coasts are the choke points for this traffic. X-band radars with 10-30 nautical mile range cannot fully monitor across these entrances. A small number of HFSWR systems can.
Cost and Lifecycle Considerations
While affordability is not the lead message, it is worth noting that HFSWR offers favourable lifecycle economics:
- Wide area maritime coverage in critical regions at a far lower cost than aircraft patrols.
- Minimal personnel requirements once operational through remote management.
- Long service life with modest sustainment needs.
In a time of rising national defence budgets, HFSWR offers a way to convert investment into visible capability quickly, without the multi-billion-dollar price tag typical of many strategic systems.
Conclusion – Now Is The Time to Act
Canada has made a public commitment to increase defence spending, to meet NATO obligations, and to secure the Arctic. The challenge is not whether to spend, but how to spend wisely and rapidly.
High Frequency Surface Wave Radar is not a concept on a whiteboard. It is Canadian-developed, Canadian-owned, operationally proven, and available now. With existing assets ready to be deployed in weeks or months, and new Arctic installations feasible in 12–18 months, HFSWR offers Ottawa a rare opportunity: to deliver real capability in the near term, while reinforcing both sovereignty and alliance credibility.
This is not about choosing between OTHR and HFSWR. It is about building a layered radar toolkit that gives Canada the strategic depth of OTHR and the persistent sovereignty coverage of HFSWR. Together, they form a continuum of awareness from the nearshore to the continental edge.
For Canada’s operational commands, Coast Guard, and policymakers, the message is clear: the technology is proven, the need is urgent, and the time to act is now.