Characterization of high latitude radio wave propagation over Canada

High frequency (HF) radio wave propagation is sensitive to ionospheric disturbances caused by space weather. Changes in conditions can be directly measured with an HF transmitter/receiver link. This paper presents data from one such link, consisting of a transmitter located Ottawa, ON, Canada, and directional receiver Alert, NU, Canada. The emits signals at 6 distinct frequencies between 5.4 14.4 MHz on set schedule that are detected processed the receiver. Based 644 days archived data, statistical analysis characterizing over course day year presented. found follow regular diurnal variation density, modulated seasonal trends. A new method for distinguishing weather effects changes presented, which utilizes quiet baselines, similar riometer curves. allows easy impacts two points. applied auroral absorption event occurred 06 June 2016, used successfully distinguish related dropouts daily variation.