Skip to Main Content
Measurements of the time-of-flight and direction of arrival are presented for an HF radio signal on a subauroral path between Sweden and the UK. During the day, the signal usually arrives from the great circle path (GCP) direction. However, at night, especially during winter and equinoctial months, the signal often arrives at azimuths displaced from GCP. To the north, signals are probably scattered from irregularities in the trough wall.
Date of Conference: 23-26 June 2003