... Onderwerp: Re: VLF-Preamp PCB Datum: Tue, 02 Nov 2010 20:57:28 +0000 Van: Edward van Ulft <vanulft@...> Aan: tomdean@... Thomas, Sensor...
16392
Edward van Ulft
snake1nl
Nov 2, 2010 9:29 pm
... Ps.: Thomas The loop is NOT grounded ... [Non-text portions of this message have been removed]...
16393
VLF_Group@yahoogroups...
Nov 4, 2010 7:54 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the VLF_Group group. File : /Roberts...
16394
robertjkorn@...
robertjkorn
Nov 5, 2010 9:13 am
Greetings list, in my registrations of the 19,6 kc signal level I found a weak "dip" on 3. November at ~12:2o UT. Caused by the C4-flare comunicated via...
16395
Joe Leikhim
rfiemiguy
Nov 5, 2010 3:26 pm
Any VLF'ers in western Massachusetts, especially near Monteray area. Please contact me directly. Thanks! -- Joe Leikhim K4SAT rhyolite@......
16396
Peter, 54N 10E
df3lp
Nov 5, 2010 4:44 pm
Hi Robert, Thanks for your chart. ... Observed very strong double peaks (up to >20 dB) mainly bearing SW to W from North Germany especially at 162.0, 81.0,...
16397
Paul
paul@...
Nov 5, 2010 5:05 pm
Well something happened, http://abelian.org/vlf/sid101103/ There was even a blip on the mains hum at 150Hz. -- Paul Nicholson --...
16398
Thomas F. Giella NZ4O
thomasgiella
Nov 5, 2010 7:08 pm
Note for the ASWLC, PSK31 and VLF Yahoo eGroups, as well as the PSK31 QTH e-list, this is a one time post to let members of the eGroups/e-lists know of the...
16399
Daniele
danieletincani
Nov 6, 2010 11:37 am
Hi group, I have just built my first BBB-4-like "whistlers receiver" and it seems it works fairly well, apart from auto-oscillations that I have when I raise...
16400
bob
bob71741
Nov 6, 2010 1:07 pm
Daniele - You are right-there are many different recorders on the market. I think that the minimum requirements would be stereo recording for both a data and...
16401
Joe Leikhim
rfiemiguy
Nov 6, 2010 2:54 pm
Any VLF'ers in western Massachusetts, especially near Monteray area. Please contact me directly. Thanks! -- Joe Leikhim Leikhim and Associates Communications...
16402
Mark Karney
mkarney19
Nov 6, 2010 3:17 pm
Hi Daniele, There are lots of digital recorders on the market. Probably the most important thing is to make sure you have manual volume controls as opposed to...
16403
VLF_Group@yahoogroups...
Nov 6, 2010 8:17 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the VLF_Group group. File : /Roberts...
16404
Paul
paul@...
Nov 6, 2010 10:07 pm
... http://abelian.org/vlf/sid101106/ -- Paul Nicholson, Todmorden, UK. --...
16405
Ernst
erni051
Nov 7, 2010 10:49 am
NSY, NRK, JXN to 52N8E: www.electricterra.com/Ernst/20101106_VLFXX.jpg peaks around 6:30 and 12:20 are local stuff. SID starts about 15:30 UT. 73 Ernst...
16406
Chris Poole
the_urbane_s...
Nov 8, 2010 1:34 am
I am trying, without success, to get Spectrum lab to run on my mac, Can anybody suggest a version that is mac compatible? Chris Poole...
16407
Paul
paul@...
Nov 10, 2010 9:17 pm
Hi All, I've been making some effort to combine the E-field receiver signal with the orthogonal loops to give 3-axis reception. It is sort-of working. The...
16408
Thomas D. Dean
tomdean@...
Nov 10, 2010 10:42 pm
... I think the noise generated by dense population centers seems to extend more than 100km. At the time of the Loma Preieta earth quake in San Francisco, CA,...
16409
Alan Melia
g3nyk
Nov 10, 2010 11:54 pm
Hi Paul I would assume that your distibution is a bit like round here is "darkest East Anglia" a lot of the local network is via 11kV on poles. Is that the...
16410
Tom Becker
b19063
Nov 11, 2010 1:51 am
Remarkable, Paul. Do I read that correctly to see a ~8kHz cloud at 80 degrees? Tom http://www.ustream.tv/channel/bowcam ...
16411
Facility 406 DM09
kd7jyk
Nov 11, 2010 5:44 am
HAARP on 2750, 4500 and 9100 KHz so far this evening. Excellent reception with a junk pocket SW receiver and 12" telescopic antenna, no matter how hard they...
16412
Paul
paul@...
Nov 11, 2010 5:47 pm
... I become more and more convinced that most of the hum source is not particularly local. But how to show that? The smoothness of the H-field hum...
16413
Walter
karula4711
Nov 12, 2010 7:50 am
Paul ... you live in a somewhat remote place. When you look at the power lines around you can you model that and use Biot Savart or else to calculate the H...
16414
Johan H. Bodin
junkodyn
Nov 12, 2010 8:44 am
Paul, as I wrote a few months ago, I have found hum currents in the ground, sometimes with well defined directions, about a kilometer away from any powerline...
16415
dl4yhf
Nov 12, 2010 2:39 pm
Greetings all, Very interesting observations, thanks for the details Paul. ... I can only second that. During the last trip to the southern germany, I was...
16416
Walter
karula4711
Nov 12, 2010 3:47 pm
Differences in soil conductivity? Walter...
16417
Peter, 54N 10E
df3lp
Nov 12, 2010 5:18 pm
Hi Johan et al., Very interesting! ... May be this could confirm your findings/thoughts: Some months ago I had long discussions with some guys from...
16418
Steve Ratzlaff
steveratz
Nov 13, 2010 4:21 am
For the first time ever I'm hearing the Russian Alpha signal on 12.09 kHz this evening. Just a single blip from it. Have only ever heard just the 3 standard...
16419
Facility 406 DM09
kd7jyk
Nov 13, 2010 4:39 am
Cool. Things have been picking up. The other night I heard a VERY strong station around 38 KHz, WWVB and about a half dozen DGPS stations. Not bad for a...
16420
Paul
paul@...
Nov 13, 2010 8:59 am
... Sorry, I meant AD823. It's a dual op-amp and I only need one stage so I may as well run them in parallel to lower the noise. ... I've been thinking along...
