... Perhaps the frequency content in these solar wind disturbances is well below the roll off knee frequency of your VLF system. What frequency range does...
7067
Ernst D. Schmitter
erni051
Dec 1, 2006 4:54 pm
JP, I am monitoring several VLF transmitters in the range 19-24kHz. At the moment the 3 traces correspond to 20900, 21750 and 22100 Hz. What concerns the...
7068
Dennis Williard
ka3bvj
Dec 2, 2006 11:16 am
vlf not to good this morning lot of hash..did get some strong signals of the Nav text on 518 khz qth is Herndon,Pa ... ...
7069
beat2kweb
Dec 3, 2006 9:52 pm
Hi, I recorded my first Dawn Chorus on November 30, and the Chorus lasted until sunrise. The recording is in the files as Aurorals24k.wav. Location is 11 miles...
7070
secproducts@...
Dec 5, 2006 11:28 am
Space Weather Message Code: SUMX01 Serial Number: 61 Issue Time: 2006 Dec 05 1122 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2006 Dec 05 1025 UTC Maximum...
7071
secproducts@...
Dec 6, 2006 7:31 pm
Space Weather Message Code: SUMX01 Serial Number: 62 Issue Time: 2006 Dec 06 1907 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2006 Dec 06 1829 UTC Maximum...
7072
Albert Heller
nettibert
Dec 10, 2006 9:46 pm
Hello, I am developing a SID detection system with SpectrumLab At http://www.alberts-welt.de/t/front_content.php?idcat=114 you can see the present field...
7073
Brian
electricterra
Dec 10, 2006 10:05 pm
Excellent work Albert! Brian in Arizona ... future You ... for...
7074
Alan Melia
Alan.Melia@...
Dec 10, 2006 11:50 pm
Hi Albert the display is fine here. I dont know how long you have been monitoring with spectrumlab but there may be some catches. It is very difficult...
7075
Albert Heller
nettibert
Dec 11, 2006 12:43 am
Hi Alan, ... Yes I know it's difficult to detect SIDs automatically. I have seen the effects of increasing and decreasing of the signals. Especialy the X-Class...
7076
Ernst D. Schmitter
erni051
Dec 11, 2006 1:40 pm
Hi Albert, I am monitoring 20900, 21750 and 22100 Hz now for about 3 weeks from 52N 8.30E in Germany. Results can be seen at www.electricterra.com/Ernst I...
7077
thierry alves
f6keo
Dec 11, 2006 3:24 pm
Hello all, there is also french stations monitoring, look at : http://jpmere.online.fr/VLF.htm Thierry, F4EOB. ...
7078
Ernst D. Schmitter
erni051
Dec 11, 2006 4:40 pm
Very good SNR. Something known about the equipment (antenna, receiver)? Best regards, Ernst...
7079
Johan Bodin
junkodyn
Dec 11, 2006 11:52 pm
Hello, If you want a soundcard VLF receiver dedicated for SAQ reception, look at: http://home.swipnet.se/sm6lkm/saqrx/saqrx.html It can't compete with Winrad...
7080
Michael Hebert
qrpbear
Dec 12, 2006 1:49 am
Johan, Downright spiffy!! Works like a champ here in Honolulu! Tnx es 73, 'Bear' NH7SR...
7081
secproducts@...
Dec 13, 2006 3:38 am
Space Weather Message Code: SUMX01 Serial Number: 63 Issue Time: 2006 Dec 13 0333 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2006 Dec 13 0214 UTC Maximum...
7082
thierry alves
f6keo
Dec 13, 2006 9:40 am
Hello friends, I'm back !!! I will be in Portugal for the SAQ receiving session (well, I hope). I was wondering to myself, because of the solar activity...
7083
humboldtbeek
Dec 13, 2006 3:49 pm
Hi, I am looking to build a simple yet effective VLF antenna and was wondering if somebody could help me out with this? I have a Andrea RAK 7 that I would like...
7084
Ernst D. Schmitter
erni051
Dec 13, 2006 4:01 pm
A no cost and quick way to a VLF antenna is a degaussing coil from an old TV set. Unfold it and there is a loop with approx. 1 m diameter quite effective for...
7085
Manfred Kerckhoff
manfred_kerc...
Dec 13, 2006 5:11 pm
Hello Johan, fantastic and very useful. Thank you (and Wolf and Alberto)! Manfred ... [Non-text portions of this message have been removed]...
7086
humboldtbeek
Dec 13, 2006 8:30 pm
Thank You Ernst If I would have only known as I just recently got rid of a couple non working televisios. Could you elaborate on what the degaussing coil looks...
7087
Ernst D. Schmitter
erni051
Dec 13, 2006 9:27 pm
The DG (a lot of windings closed up in a hose)is usually doubly wound around the back part of the CRT. Simply remove it, unfold it to a loop as it is and...
7088
Shawn Korgan
vlfkorgan1
Dec 14, 2006 2:37 am
Hi all, There was fairly good chorus activity Monday morning here in Colorado. I would rate it around an S3. It appears the X3.4 flare that occurred earlier...
7089
secproducts@...
Dec 14, 2006 2:30 pm
Space Weather Message Code: SUMSUD Serial Number: 82 Issue Time: 2006 Dec 14 1425 UTC SUMMARY: Geomagnetic Sudden Impulse Observed: 2006 Dec 14 1416 UTC ...
7090
Ernst D. Schmitter
erni051
Dec 14, 2006 2:34 pm
Todays C1 flare starting at 12:00 UT left a small but clear dip in 2 VLF traces from far transmitters (20900, 21750 Hz) and no dip in the near (ground wave,...
7091
Albert Heller
nettibert
Dec 14, 2006 3:59 pm
... I got it too at 21750 Hz. At 23400 Hz there is a very, small increasing peak and at 20900 Hz a very, very small decreasing peak. ...
7092
John Popelish
jpopelish
Dec 14, 2006 4:11 pm
... The magnetometer at Fredricksburg http://geomag.usgs.gov/observatories/fredericksburg/ showed about a deep dip in the H-component at the arrival, and mine...
7093
secproducts@...
Dec 14, 2006 4:31 pm
Space Weather Message Code: ALTK06 Serial Number: 249 Issue Time: 2006 Dec 14 1625 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2006 Dec 14 1624 UTC ...
7094
Johan Bodin
junkodyn
Dec 14, 2006 7:33 pm
Hi, Version 0.5 of SAQrx is now available at: http://home.swipnet.se/sm6lkm/saqrx/saqrx.html - Three selectable filter bandwidths, 300, 1000 and 2400 Hz. - 1...
7095
secproducts@...
Dec 14, 2006 10:46 pm
Space Weather Message Code: SUMX01 Serial Number: 64 Issue Time: 2006 Dec 14 2238 UTC SUMMARY: X-ray Event exceeded X1 Begin Time: 2006 Dec 14 2207 UTC Maximum...
