EventBetween Sept. 7‑14, a joint North American experiment concluded a three‑year series that tested a HAARP HF transmitter paired with a low‑cost Cold Bay receiver array. Cooperative aircraft – an E‑3 Sentry, HC‑130J Combat King II and KC‑135 Stratotanker – provided known positions, and the system achieved full skywave (beyond line‑of‑sight) detections. The exercise involved Alaskan Command, the Air Force Research Laboratory, Defense Research and Development Canada and MITRE.
U.S. Northern Command ends a three‑year test of new high‑frequency radar technology that extended detection beyond line‑of‑sight across Alaska and northern Canada, according to a release from Alaskan Command.
The final live‑fly test of a three‑year Arctic air domain awareness experiment ran in Alaska, pairing a high‑frequency transmitter with a low‑cost receiver array to detect aircraft beyond existing radar coverage. Initial data show successful beyond‑visual‑line‑of‑sight detections.
U.S. military personnel, scientists and international partners conducted live‑fly testing in Alaska during the final event of a three‑year Arctic experiment to explore ways to close air surveillance gaps.
Live‑fly testing of a high‑frequency transmitter and low‑cost receiver array was completed Sept. 7‑11 2026 at Joint Base Elmendorf‑Richardson, Alaska. The experiment showed full skywave aircraft detections beyond existing radar coverage, meeting its objectives as the final event of the three‑year Arctic air domain awareness series.
