Research was initiated in 1984 with the re-purposing of a decommissioned LORAN-A navigation beacon for undertaking experimentation in aircraft, vessel and iceberg tracking.[18] Research continued for the next decade and in 1999, Canada’s installed two SWR503 HFSWR systems at Cape Race and Cape Bonavista, Newfoundland.[19] The sites underwent a technology evaluation in 2000 and were subsequently upgraded and operationally evaluated in 2002.[20] The following is a quote from the October 2002 Operational Evaluation (OPEVAL) performed by Canadian Department of National Defence:[21] "HFSWR is a beneficial addition to the Recognized Maritime Picture (RMP).