Hi John, Thanks for sharing.
I've also done wideband recordings of the eclipse using a similar setup: a Hermes-Lite 2.0beta2, gr-hermeslite2 and digital_rf. I did 8 hour recordings of the 40, 30 and 20m bands at 384ksps. Rather than making timelapses of the spectrum, I have done high resolution waterfalls of the recordings using Python. See http://destevez.net/2017/08/waterfalls-from-the-eclipse/ Regards, Dani EA4GPZ. El 31/08/17 a las 19:43, John Ackermann N8UR escribió: > As part of the HamSci (http://hamsci.org) solar eclipse experiment I > recorded a bunch of IQ data from HF radio during the eclipse, using > Gnuradio (plus the gr-hpsdr and gr-digital_rf modules) for all signal > processing. > > A Red Pitaya running at 2.5 Msamples/sec recorded the entire AM > broadcast band, and an HPSDR Hermes recorded four virtual channels, each > at 384 ksamples/sec, covering the 80M, 40M, 30M, and 20M ham bands. The > data totals just under 1 TB for the 8 hours of recording. > > Initial analysis is in the form of time-lapse movies of each band that > compress 8 hours of data (displayed in FFT form) into about 3 minutes. > This provides a quick way to see if anything happened, and a clue where > to zoom in for more detailed analysis. > > Rather than making this a long email with lots of boring detail and > links, my blog at http://blog.febo.com has links to the movies on > YouTube, as well as the Gnuradio scripts, background details, etc. > > I'm going to be talking about the eclipse experiment, as will Dr. > Nathaniel Frissell (W2NAF), professor at New Jersey Institute of > Technology and head of the HamSCI project, at the upcoming ARRL/TAPR > Digital Communications Conference in St. Louis on Sep. 15-17. Most > Gnuradio types will find lots of interesting content at the conference, > so if you can get to St. Louis, please join us! Details at > http://tapr.org/dcc. > > John > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
