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

高频（HF）无线电波传播对太空天气引起的电离层干扰很敏感。传播条件的变化可以通过HF发射器/接收器链路直接测量。本文介绍了来自一个这样的链路的数据，该链路包括位于加拿大安大略省渥太华的发送器和位于加拿大NU的Alert的定向接收器。发射器按设定的时间表以5.4和14.4 MHz之间的6个不同频率发射信号，这些信号由接收器检测和处理。根据644天的存档数据，介绍了表征HF无线电波在一天当中和一年中的传播状况的统计分析。发现HF的传播遵循电离层密度的日变化规律，并受到季节趋势的调节。提出了一种新的方法来区分空间天气影响与日变化对HF传播的影响，该方法利用了安静日基线，类似于riometer安静日曲线。这种方法可以轻松分析空间天气对两点之间的HF无线电传播的影响。此方法适用于2016年6月6日发生的极光吸收事件，用于成功地区分与极光吸收相关的辍学和与每日电离层变化有关的辍学。