dear vlf sound collectors, i know it's indeed not a strictly radio-science discussion related post i wrote, but i am hoping i won't disturb anyone with it: i...
Hi Now I don't want to sound uncharitable, but that clip seems to owe at least as much to imagination as science. I liked the field lines pushing through the...
Hi Graham: No, it¹s not a documentary; it¹s an animated artwork that consciously and I hope obviously does nothing more than to allude to the presence of...
Last posted on www.vlf.it web site: - Characterization and use of a Minimal Loop in RDF Automatic Monitoring Stations ...and a new "on line" service: - LIVE...
woooooo great news ! I tought the website was dead ! (but i'm still reading the old topic again and again as i'm learning more about radio) Thx for the update,...
Hi Thierry, it is difficult with this setup, in cause of many low frequency surge (many of them caused by birds jumping up and down on my antenna). To make a...
Hi, I believed the biggest effort was writing the book, but I was wrong! Sometimes to find a publisher can be even more difficult. ...but I hope in a quick...
Hi Guys, here is a commercially-made system that is very similar to mine in design and structure. It is the model L-600S ELF/VLF H-Field Loop Receiving System...
Hello Renato ! Ok, no problem it is really great like that. We were asking our self in the French LF list about how you avoid overload from 50 Hz and things...
Hi Thierry, I live in the country, and this helps a lot: some things in urban area can be more difficult. The electric field is captured with a Marconi...
Hi Thierry, the trial version of the plotting traces is on line. Bye, Renato...
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swpc.products@...
Nov 19, 2007 6:26 pm
Space Weather Message Code: SUMSUD Serial Number: 86 Issue Time: 2007 Nov 19 1823 UTC SUMMARY: Geomagnetic Sudden Impulse Observed: 2007 Nov 19 1811 UTC ...
Hello Renato ! Uau ! Thanks a lot ! Really interesting ! Do you see the cycle that it makes ? Thanks to this, there is now a great material to work in. We can...
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swpc.products@...
Nov 20, 2007 2:24 pm
Space Weather Message Code: ALTK06 Serial Number: 259 Issue Time: 2007 Nov 20 1421 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2007 Nov 20 1421 UTC ...
weeeeee ! And the storm in near-real-time : http://137.229.36.30/cgi-bin/magnetometer/gak-mag.cgi http://137.229.36.30/cgi-bin/riometer/riom2_sel.cgi ...
Hi Thierry, I tested the frequency plot function, but in cause of Schummann resonaces nature (a noise and not a carrier), the obtained curve is very ambiguous....
Hello, i found that at http://www.aaronia.de/ They sell handheld spectrum analyser. below are the spec of the most sensitive of their analyser (500€ without...
Units in Telsa measure the magnetic field. 0.1nT is 0.1 x 10^-9 Telsa 1pT is 1 x 10^-12 Telsa I believe that you want to measure frequencies as shown on the...
... yes. and reading that : http://137.229.36.30/cgi-bin/magnetometer/gak-mag.cgi I see there is variation of many hundreds of nT during a relatively small...
Hello Laurent, but this variations of the geomagnetic field are not in the HF spectrum, but are really low in frequency. This kind of material is nice to see...
... Point taken. but I didn't really expected to plot the geomagnetic field. And, the handeld spectrum have a frequency range from 1hz to n-hz (highly...
Ok ! Good luck ! Are you French ? Thierry. _________________________________________________________________ Découvrez le blog Messenger Le Meilleur du Web :...
... thx ... yes. I found a cheap-o-solution ! Cost : 0$ Time of development : 30mn including the time to learn the langage. (17 line of RBASIC) Using my...
Nope good ole USA eat'n pumpkin pie! it is in very good condition with built in spectrum analyser (((-Retired-))) K.E.S. laser Productions Full Color 3-D laser...
... I'm in France. Shipping will be hazardous and expensive. i'm in 220V@50Hz (but the analyser is probably compatible with that too) and... i checked some...
