Paul, I am puzzled by the Clips per Minute expression on the stream Details page. I am currently set to clip at -1dB so, if I understand this correctly, you...
19868
wolf_dl4yhf
dl4yhf
Jul 3, 2012 9:17 am
Greetings all, Checking Paul's VLF event detector this morning I thought 'whow there was an aurora on VLF' but after closer inspection, it's not. The sparrows...
19869
Paul
paul@...
Jul 3, 2012 2:05 pm
... The histogram program counts a sample as clipping if it exceeds 0.999 of full scale. So with 16 bit signed samples, anything with absolute value above...
19870
Paul
paul@...
Jul 4, 2012 8:02 am
... Was wondering about those! Sometimes bird noises and VLF emissions look quite similar on the spectrogram, although usually they are quite obvious when...
19871
Caroline Devine
linerdevine
Jul 4, 2012 8:12 am
Listening out for additional chorus on Bielefeld...! Best regards, Liner...
19872
Bob Riese
bobk3djc
Jul 5, 2012 12:03 am
Hi Mark as a unsubscribed Lowdowner can you tell me how to get back on the mailing list again,,, Not sure why I allowed my subscription to run out ?? 10 yr ...
19873
vlfkorgan1
Jul 5, 2012 12:06 am
The following site appears to provide information on subscribing to the Longwave Club of America and the Lowdown. Happy 4th to all! ...
19875
ALEX EDWARDS
alex161476
Jul 10, 2012 1:54 am
This posting opens up into some type of advertisement. ________________________________ From: Michael Zintl <mikeyz3@...> To: Sgrindall@...;...
19876
Alan Melia
g3nyk
Jul 10, 2012 10:44 am
I suggest to all members that you do not open or click on URLs presented like this!! It is a well known spam/virus format used when members Yahoo! webmail ...
19877
Mark Karney - VLF
mkarney19
Jul 10, 2012 1:59 pm
Good advice, Alan. Unfortunately, there seems to be a sharp increase in this type of hacking the past few months and there is not much that can be done to...
19878
4x4Junky
mrdx_steve
Jul 10, 2012 11:02 pm
On a side note* If you have a /LinkedIn /account, the spamers have found a way to do the same thing and they get more information. Watch out for invitations....
19879
Peter, 54N 10E
df3lp
Jul 11, 2012 11:37 am
Hi, Active since 10:00 utc, going upstairs from <10 kHz. Peter, 54N 10E...
19880
Peter, 54N 10E
df3lp
Jul 11, 2012 11:46 am
Hi, Unusual broad signal around 03:00 utc at 17.8 kHz. Airborne? Peter, 54N 10E...
19881
Chris Dillon
orchard.design
Jul 11, 2012 12:07 pm
Hi Peter and VLF Very strong signals with me - about 30dB above the usual Alpha sigs. Here's my screen capture https://dl.dropbox.com/u/20838053/test.jpg 73...
19882
Paul
paul@...
Jul 11, 2012 12:08 pm
... That's a TACAMO frequency that we've looked at before. I'll see what the rx sites have recorded. -- Paul Nicholson --...
19883
Manfred Kerckhoff
manfred_kerc...
Jul 11, 2012 9:03 pm
Hi Chris, Peter and all, probably the second part of the tests will take place tomorrow morning. Let's try to get his location. Manfred ... [Non-text portions...
19884
Chris Dillon
orchard.design
Jul 11, 2012 9:11 pm
Hi Manfred - I don't have any DF capability here but will certainly be monitoring. 73 Chris ... [Non-text portions of this message have been removed]...
19885
oneradiodoc
Jul 12, 2012 5:14 pm
Hello to the group: we've been hit by something... virtually all high frequency radio transmissions ceased sometime after noon EDST north america 7/12/2012. In...
19886
Paul
paul@...
Jul 12, 2012 5:48 pm
... Something dramatic on all the SID charts, starting soon after 16:00 UT. -- Paul Nicholson --...
19887
Thomas Ashcraft
heliotown27
Jul 12, 2012 5:52 pm
... X1.4 solar flare. Subsiding now. Thomas...
19888
Alan Melia
g3nyk
Jul 12, 2012 6:27 pm
Yes an X1.3 flare peaking about 1650z. Alan ... From: "Paul" <paul@...> To: <VLF_Group@yahoogroups.com> Sent: Thursday, July 12, 2012 6:48 PM ...
19889
thb201
Jul 12, 2012 8:17 pm
Caught it on my SID receiving setup. Very nice. And I was actually sitting in front of my computer watching the plot as it happened instead of off somewhere...
19890
Shawn
vlfkorgan1
Jul 13, 2012 1:46 am
For those interested there was an X1.4 flare today. Space Weather Message Code: SUMX01 Serial Number: 81 Issue Time: 2012 Jul 12 1735 UTC SUMMARY: X-ray Event...
19891
Tarif Rashid shanto
shantoastro@...
Jul 13, 2012 2:20 am
Hi Wolf, At first I would like to thank you to build such a wonderful software. I monitor VLF radio signal to observe Sudden Ionospheric Disturbances. I can...
19892
Tarif Rashid shanto
shantoastro@...
Jul 13, 2012 2:57 am
Hi, Does anyone know from where I can get LWPC v21 software and how to simulate VLF radio signals path and compare with the real findings? Thanks, Tarif ...
19893
Edward van Ulft
snake1nl
Jul 13, 2012 10:47 am
Tarif, IT seems SPAWAR San Diago is the place to go Edward [Non-text portions of this message have been removed]...
19894
Donald Rice
fnddr
Jul 13, 2012 12:57 pm
Tarif, LWPC was produced by the US Navy and is not freely distributed. If you are connected to a sponsored research program, you might be able to request it...
19895
dl4yhf
Jul 13, 2012 1:58 pm
Hello Tarif, Measuring the phase is possible but considerably more complex, because you will need a stable reference (prefered: GPS with one-pulse-per-second...
19896
Tarif Rashid shanto
shantoastro@...
Jul 13, 2012 2:21 pm
Hi Wolf, I have problems with importing csv or txt file from data folder. I export txt/csv file to the data folder but I can't load and see them into spectrum ...
19897
Stefan
adubnafets
Jul 14, 2012 3:54 am
What do you people think of this: http://www.spacedaily.com/reports/Sounds_of_northern_lights_are_born_close_to_ground_999.html Could a boundary layer (such as...
