Hello Peter, Good audible too! But the last sundays CW operator has better skills ;-) 73, Stefan Am 29.10.2010 18:59, schrieb pws: Hi Stefan, You wrote: Now i have added a wav (audio) file of the SAQ
Hi Roger, Am 26.10.2010 23:18, schrieb Roger Lapthorn: Stefan, The possibility of whistler duct AMATEUR propagation is fascinating. There are (I think) spectrograms of such propagation from NAA (~14k
Hello Michel, Thank you for sharing your recording. I am interested in your noise spectrum! My own recording is still running until i will stop it tomorrow at work on the grabber PC ;-) Will be about
Daniele, Warren, I don't know the inspire kit but my own grabber is a broad band receiver too and it seems to work. You can see on the 'wideband window' that i am receiving from 0...24 kHz without ex
Hi Alan, Please see the lower window/capture at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html The vertical strong lines there (0...4 UTC), may they come from this flare, stro
Hello Daniele, VLF, Yes, sharing the same usr file could be useful. My grabber is currently covering about 13 hours in the wideband window but 24 hours makes sense i think. The sampling rate should b
Hello Wolf, I have been 5 dB stronger than the Alpha stn on 11904 Hz at your location ;-) Have you thought that this will be possible? ;-) 73, Stefan Am 23.10.2010 18:27, schrieb wolf_dl4yhf: Stefan'
Hello Piotr, Nice to see/read again from you here on the reflector! :-) Thank you for your very nice words and for the effort on updating the propagation model for my current setup! It is very intere
VLF, Since some day the WebSDR VLF RX is much more sensitive. The Alphas are very clearly audible and sferics and MSKs are well visible/audible! This could be used for VLF tests maybe. They are using
Hi Horst, Am 21.10.2010 18:23, schrieb Horst Stöcker: So it will be possible to hear both - just with only one computer. Not sure if you will HEAR my signal ;-) but you can see it while listening to
Hi Jacek, All very interesting, i cannot stop thinking about ;-) Your plot_80km.png tells me that in 200 km distance (pretty close to DF6NM/DJ2LF/DK6NI/DJ6LB), 2500 Hz is the most suitable frequency.
Dear LF/VLF, My next VLF kite experiment will be tomorrow, saturday, 2nd october :-) After my request to the german air traffic control i got a very kind telephone call at 01:30 AM and later i got th
Hi Marco, Very kind, tnx. Yes, please order 2 pcs for me. If you want, i pay before you send it to me ;-) Just tell me the overall sum :-) 73, Stefan/DK7FC I want to try a LF converter using this mix
Hello Nicolas, With a higher diameter you get more L at less turns, so more volts per turn. This makes it necessary to use a better wire insulation or a higher wire spacing, depending on the power. K
LF, Yesterday in the evening i've got the below message from Jay. After that i wrote an email to TF3HZ and told about VLF, gave him some links and asked if he would be interested to try an attempt to
Hi Roger, Congrats to your Nov! What do you plan on the Dreames Band? A pity that the NoV is limited to 400 Hz bandwidth since even lower frequencies are interesting as well. Never mind... Anyway, i
Nicolas, Marco, Markus, Gary, Thanks for the reports! The antenna is still not resonated and seems to have a very high capacitive component. Z at 137 kHz is about 200 Ohm but no idea about the phase.
VLF, The QRN on the Dreamers Band is as low as never before since i am monitoring the band. My DFCW-60 window is almost dark in the moment. In my 8th experiment the QRN was rather high, about 6 dB mo
