Radio Monitoring

A one-year study on shortwave propagation is presented here. It was conducted to gain both technical and analytical experience. How can the WSPR beacon mode be used to capture the influence of the ionosphere on global radio wave propagation? How can about 250000 WSPR-reports be analyzed to obtain a meaningful result? A large number of variables are available, such as date, time, radio frequency, longitude/latitude (or azimuth/distance) of the reporting stations, signal-to-noise ratio of the received beacon signals, sunspot number and geomagnetic index.

After processing the WSPR-reports, it was instructive to observe the changing propagation throughout the year and the different behavior of different frequencies. The result is a site-specific overview of the propagation probability of radio waves throughout the year from my local station to a variety of locations around the world. Here you can read more.