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VLF_Group · Natural Radio VLF Discussion Group

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Group Information

  • Members: 1531
  • Category: Solar System
  • Founded: Dec 7, 2001
  • Language: English
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Doe's anyone have any idea what this beacon is at 18.3Khz.? I have seen it lately just before dawn but now it is showing up just after sunset. The usual...
23 Nov 12, 2009
7:28 pm

Brian
electricterra
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Well the beacon at 18.3 Khz. dissappeared into the noise after sunrise but it returned slightly after my sunset. I still do not understand if it is Le Blanc...
3 Nov 10, 2009
3:28 pm

Brian
electricterra
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What is the website for the new VLF observatory, Romero? [Non-text portions of this message have been removed]...
2 Nov 3, 2009
10:10 pm

reromeroit
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A new VLF observatory is on line from North Italy: Pontese is 2217m dew, over Teleccio dam in Orco and Soana Valley, inside Gran Paradiso national park. The...
4 Nov 3, 2009
6:55 pm

Peter, 54N 10E
df3lp
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i have need of a hum bucking guitar pick up, and find there is a pedal out there in the music field that does the same task as the DAN (an inspire power line...
2 Nov 1, 2009
8:47 pm

vonu
vanvonu
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Hi Wolf, A couple days ago I downloaded the latest tweak to 2.74 Build 10, dated 27-Oct. One think I noticed in the "tuning eye" display is the yellow trace...
2 Oct 31, 2009
8:13 am

dl4yhf
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Hi, Since I'm looking for a new place for the Longwave Monitor a portable receiver for VLF/LF was needed. It should be a heterodyne for single signal...
3 Oct 29, 2009
7:01 pm

Peter, 54N 10E
df3lp
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All - I have posted in the KC0YA folder two recent IEEE papers describing the STARlab AWESOME VLF receiver, and some recent data results. This receiver is has...
1 Oct 28, 2009
3:53 am

kc0ya
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At last a decent sunspot 1029, this really has grown to a decent size :- http://www.spaceweather.com/ Let's hope this is the start of more to come. Some...
1 Oct 28, 2009
1:44 am

marky26_uk
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Hi, catched some SIDs today on almost all well known VLF/LF channels available here in North Germany. Solar activity reached C-level. Peter, 54N 10E...
4 Oct 27, 2009
11:53 pm

abrandi2000
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I recently built an SK-1 (Shawn Korgan's modification of the McGreevy BBB-4 design) inside an Altoids tin. I thought it was working ok; I could hear sferics...
6 Oct 25, 2009
4:20 pm

markhaun2000
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Hi group I know it's something close to scalar gravitational waves :-) These super pulses are a common observation here. But up to this fine Sunday morning...
2 Oct 25, 2009
11:09 am

Peter, 54N 10E
df3lp
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I will post this here too for anyone in California: We are now tracking 2 potential earthquakes. The first one is expected anytime now through about 1000 10-21...
3 Oct 23, 2009
2:12 pm

markhaun2000
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A while back there was a suggestion of putting a VLF beacon on the air. These are Larry Kramer's links from http://home.pon.net/785/ , apparently about five...
2 Oct 22, 2009
9:41 pm

Alan Melia
g3nyk
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Not a VLF but a LF issue. ... Hi: Thanks to Peter, G3PLX, here's the GPS Locked Loran Receiver V1.0 program for download. A simple page describing briefly its...
28 Oct 20, 2009
7:53 pm

Peter Schmalkoke
peter.schmal...
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Sheffield, http://markyd26uk.homeip.net:8000/vlfstream.ogg Todmorden, http://67.207.143.181/vlf1.m3u Germany, http://67.207.143.181/vlf6.m3u Sheffield/Germany...
3 Oct 20, 2009
1:56 pm

Gallagher, Dennis L. ...
galladl
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Hi group, I'm using a low light camera for imaging sprites and I captured some interesting activity last night. I was monitoring a storm off the northeast...
5 Oct 17, 2009
12:51 pm

kg4inu
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Hi, anyone out there observing the strong carrier at 23.8 KHz? Looks like that NAA has stopped modulation temporarily. Peter, 54N 10E...
1 Oct 16, 2009
9:41 pm

Peter, 54N 10E
df3lp
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Hey, I'm a documentary filmmaker at Stanford looking to do a short piece about VLF Natural Radio and as part of my research am reaching out to the community of...
2 Oct 16, 2009
5:40 pm

coilcrazy
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Hi, Observed 3 strange ionospheric disturbances last night. Look like "early/fast" events but - apart from some small ones at North Italy - no thunderstorms...
5 Oct 12, 2009
3:42 pm

Walter
karula4711
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Hi VLF/ELF observers. I am still observing nightly for possible fireball emissions though I have not had much to report lately. Last night there was a...
2 Oct 10, 2009
2:00 am

bob71741
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The software provided with DATAQ ADC's unfortunately does not read the computer's internal clock. Therefore there is no way to actually display real time of...
2 Oct 10, 2009
1:26 am

bob71741
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I have a PAR 128 lock-in amplifier on my bench that I used for weak-signal laser work some time ago. I'm wondering how it might serve for known-frequency...
2 Oct 9, 2009
7:55 pm

James
jimpat999
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I thought the group may be interested in the attached chart. Shown is the relative received signal level at my observatory in Anchorage, Alaska USA from the...
8 Oct 9, 2009
3:57 pm

wd73383
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Hi all, Off vlf topic i know but does anybody know of any temperature compensated op-amps. I'm trying to amplify dc but the temp drift is ridiculous, i'm...
5 Oct 8, 2009
2:24 pm

MarkD
marky26_uk
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Hi group, according to the measurements I did a moment ago the built-in Realtek audio input has a low pass at 8 kHz. Sampling rate may be switched to 48 kHz....
7 Oct 5, 2009
6:50 pm

Peter
df3lp
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Hi, I monitor this transmitter and at 11:22 UT today it just went off the top of the scale. My other transmitter at 19.6kHz remained unchanged. The rise was...
9 Oct 3, 2009
10:41 pm

Paul Hyde
g4csd
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Anyone in California might want to check out what I have uploaded here: http://tech.groups.yahoo.com/group/ulfelf/?yguid=206281889 and follow what is surely an...
3 Oct 1, 2009
8:52 pm

vlf4me
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Having found the SID file for Spectrum Lab (thanks for the reply Alan) I have been experimenting and getting some basic results but, the profiles don't match...
6 Sep 30, 2009
1:39 pm

Peter
df3lp
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Hi all, I'm new to both this group and VLF reception. I'm just starting to build my first shielded loop antenna and a simple differential amplifier for it....
4 Sep 29, 2009
2:46 am

edard99
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