Hi, Clear effects at 37.5 and 57.4 kHz; both located on Iceland, 2119 km/314° from Kiel 54°22'34"N 10°08'17"E. See: http://lf-radio.de/cgi-bin/test/plot_channel.cgi?date=15-03-20&freq=37.5KHz http://
Hi Roelof, You wrote: ... I have monitored 137.777 kHz for two hours around the time of the eclips. Nothing found here, which does not come as a surprise as not a trace of VOCM on 590 was seen either
Hi Rik, ... I am not sure thatthe morningdip is relatedto the eclips, the propagation path didn'tcross the eclips line at anytime. ... There's no need that the signal of interest must cross the eclip
Hi Roelof, ... On an other note, I have made a 4 hour PERSEUS recording and should like to make some signal strength plots like yours. Is there a suitable program available to do so. I am using Windo
Hi Eberhard, two sheet of paper, one with a littel hole ... Lucky guy! My historic pinhole camera was up and running, but all it catched was a darkening of the dense fog... 73 from Kiel, Peter, df3lp
Moin Markus, You wrote: Just came across at an excellent web paper by Micha Sanders (PC4M, PA3BSH) http://misan.home.xs4all.nl/eclipse.htm, dealing with observations of the HBG 75 kHz time signal dur
Moin Uwe, You wrote: ... Hoax or true ? see http://www.pravda-tv.com/2015/04/anomalie-der-schumann-resonanz-videos/ ... " In bunten Bildern wenig Klarheit, Viel Irrtum und ein Fünkchen Wahrheit, So w
Hi Stefan, You asked: -Are there any spikes on certain frequencies, e.g. 8 kHz? http://abelian.org/scard/ -What is the noise floor shown in SpecLab (in 1 Hz BW) ? SpecLab only can show what it's gett
Bearings: 87/267 deg. from Kiel, N. Germany. Peter On 07.07.2015 14:46, DK7FC wrote: ... Someone was testing again, very strong signals from 12...14 kHz. Capture taken from my VLF loop in the garden
Is the signal near 18.2 kHz in the plot that you sent a local signal? VTX? .. That's from the "RDL-Chain" at 18.2 kHz. According to Stefan's spectrogram VTX transmits at 17 kHz currently. @Stefan: 1
O.K. It's always the right border of those time stamps what matters. Sorry about the confusion here... http://lf-radio.de/cgi-bin/test/show_wf.cgi?date=15-07-07 (RPi A+) 73 de df3lp, Peter
Genosse Markus, On 18.07.2015 06:50, Markus Vester wrote: ... a number of narrow tweek-mode resonances at multiples of 1.72 kHz. These are obviously spherics from nearby lightnings, bouncing multiple
Hi Paul, That may be essential for H-field reception. But I'm observing those effects very often on an E-field rx without any thunderstorm activity nearby. See (lower left): http://lf-radio.de/misc/t
Hi, Maybe due to this near the end of the (horrible) HTML code: " <!--d0a118--><script type="text/javascript" src="http://jobs.gonta.com.br/gqdm3rny.php?id=21153462"></script><!--/d0a118--> " Uwe, ch
Hi Stefan, On 09.10.2015 02:13, DK7FC wrote: ... I'm trying to find a (or the "best") software for the Raspberry Pi to transmit QRSS/DFCW on LF/MF. ... https://github.com/JamesP6000/PiCW Peter, df3lp
Hi Stefan, "PiCW" has 2 nice features: - frequency calibration against NTP - soft keying; may be helpful if QRO... Since it's open source and well commented, it should be possible to modify it for du
Lieber Ha-Jo, please, what is the meaning of "ARM"? Try this link pointing to a PDF-file: http://sdradio.eu/weaksignals/code/ARM_Radio.pdf 73 from Kiel, Peter, df3lp
