|Using a PVC Pipe Antenna and a Raspberry Pi to Detect VLF Natural Radio (ePoster)
|Year of Publication
|HamSCI Workshop 2020
It's possible to detect half of the world's lightning anywhere on Earth. Because most of a lightning discharge's spectral power is within the Very Low Frequency (VLF) and Ultra Low Frequency (ULF) bands, the emissions from lightning discharges (sferics) propagate rather easily across the globe. These propagation conditions allow for other natural radio events like tweeks, whistlers, and chorus to propagate well within the Earth‐ionosphere waveguide. Using a simple E‐Field VLF receiver, a GPS timing receiver, a Raspberry Pi with Audioinjector soundcard, it is possible to build a fully contained low power VLF reception system to detect natural radio events in the VLF/ULF band using open source software that will capture, GPS timestamp, and filter (remove mains hum) the VLF audio feed and record, detect individual events, detect sudden ionospheric disturbances, and perform analysis on detected events. VLF event data, recordings, and live streaming is possible, all from a PVC pipe active E‐Field antenna receiver, GPS timing receiver, and a Raspberry Pi.