Hi Luis, http://lf-radio.de/cgi-bin/test/show_wf.cgi?date=17-05-26 On 26.05.2017 15:54, Luis wrote: ... Any idea of the possible origin of this strong signals ? Natural or man made ? ... Man made; th
Hi Mal, May be that? https://www.radiomanual.info/schemi/Surplus_Civil/Skanti_TRP6000_user.pdf 73 de df3lp, Peter FOR INTEREST THIS UNIT CAME FROM VESSEL GXAL/SALLING ALL INFO APPRECIATED DE MAL/G3KE
Hi Jim et al. There is a slight chance to observe effects via the propagation paths from NAU, NAA or NML to Europe. Especially NAU looks promising since the C-flare from 2017-07-15, ~1940 utc, could
Hi Rik, Yes; impressive. You wrote: ... seems to be a X10 flare, it has been a while that we had such a strong flare ... See: http://lf-radio.de/cgi-bin/test/show_wf.cgi?date=17-09-06 May be the stro
Hi Andy, I see. Thanks! My fault due to the paranoid configuration of the web-server. Direct access of ".png" inside that directory from outside is prohibited. Go to: http://lf-radio.de/cgi-bin/hbg/s
Hi Chris, Seven lines of "Python" and a relay circuit connected to com1, RTS-pin: import serial # see https://pythonhosted.org/pyserial/ import time # needed for time delay ("sleep()") com = serial.S
Hi Chris, I'm running this pre-amplifier attached to a single turn loop, an equilateral triangle with 10 metres of circumference (~13 uH). C1 (150nF here) is needed to block "KIL" (NDB, 353 kHz) at 8
Hi Stefan et al., Impressive image! A comparable effect could be observed here at Kiel, North Germany, at 2018-04-22 on the broadband LF-rx (15cm ferrite loop). See: http://aesuan.de/sid/bt878/wf_18-
Hi Alan et al., ... I suppose its possible Peter still has it. So it would seem there is the possibility of lightning strkes injecting charge into the ionosphere. http://www.df3lp.de/misc/hga22/2012-
Hi, Anyone out there who could confirm a weak signal at 16 kHz? It appears around 0400 utc and disappears around 1900 utc since some weeks here at North Germany. I cannot see it on the e-field antenn
Hi Tom, tu fer cfm! On 18.07.2018 19:16, DK1IS wrote: ... but it appears at the slow colour DF in about NNW-SSE (180° ambigious) as well as in the VLF wideband 1.95 Hz FFT instance (middle of the pag
No, NAA is visible at 24.0 kHz. Looks like South Korea. See: https://groups.yahoo.com/neo/groups/VLF_Group/conversations/messages/25189 Peter, df3lp http://136.su/index.php?action=dlattach;topic=393.
O.K. Go to: https://groups.yahoo.com/neo/groups/VLF_Group/conversations/messages/25189 Read those ITU infos. Push: "Show message history" Read what Markus wrote there. May be he describes exactly wha
Roman, On 03.09.2018 20:08, You wrote: ... Look, Vadim aka KARAPUZ - UA6SWL(this is nick name at pskreporter, not real call, he is unlis and SWL) make a some direction-finding laboratory work by KIWI
Hi Richard, Yes! I removed the cases from some old VLF-crystals (got from ancient VLF-TX). Driving them with approx. 100 mW (those "bending" vibrators could handle that easily) I reached approx. 5 me