2020 HamSCI ePoster: Using a PVC Pipe antenna and a Raspberry Pi to Detect VLF Natural Radio скачать в хорошем качестве

2020 HamSCI ePoster: Using a PVC Pipe antenna and a Raspberry Pi to Detect VLF Natural Radio

Author: Rizzo, J Abstract: 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. This poster was presented at the third annual Ham Radio Science Citizen Investigation (HamSCI) workshop. The primary objective of the workshop is to bring together the amateur radio community and professional scientists. The theme for 2020 was "The Auroral Connection: How does the aurora affect amateur radio, and what can we learn about the aurora from radio techniques?"  Due to restrictions caused by the COVID-19 Coronavirus, the 2020 workshop was held on March 20-21 using Zoom Webinar Services hosted by The University of Scranton in Scranton, PA . https://hamsci.org/hamsci2020