... Guaranteed to produce replies. ... Coming towards the end of the season in Europe, but North America activity will be picking up soon. Happy with the low...
... Paul, Could you please explain your statement: But North America activity will be picking up soon. I've been listening almost every night near Chicago. I...
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Paul
paul@...
May 2, 2012 6:20 pm
Joe wrote: [North America activity will be picking up soon.] ... Going by whistler activity logged in Florida, the activity is from May to August and tends to...
Here are times and locations of recent sprite generating lightning strokes in the Texas-Oklahoma-Kansas region. The number in the second to last column is the...
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Paul
paul@...
May 2, 2012 11:13 pm
Some notes and images to illustrate the search process. A map of a recent meteor detected by the All-sky fireball network - X marks the observed location, ...
Thanks Thomas, I just saw posting, but not seeing earlier mail, did I miss one? I found the [data] interesting, especially [kA] numbers, but do you know how ...
... Dok, You can disregard [*]. That was noting a mutual capture on two separate sprite cameras between observers. [1/0] (0 for Cloud Ground stroke and 1 for...
Hello fellow observers - Once again we are requesting observations from those of you who are SARA members so we can publish them in the next issue of the SARA...
Please disregard my previous post. I have no clue why it posted prematurely. Apparently, quickly pressing backspace can trigger a post submission. ... So if I...
Thanks Eddie, and you can find it here, too http://www.df3lp.de/cgi-bin/fh/show_wf.cgi?date=12-05-03 Today we have seen 10 - 20 kHz tested. My guess is > 20...
Hi Folks, I remember looking into using a digital recorder for VLF ( sferics and tweaks and whistlers ) quite a few years ago, and back then people were...
I've seen the same. The aliased version of Jim Creek looked stronger at 23.2 because of the falloff of the response of the soundcard. It was the second...
... Ned, I used a SONY Minidisc recorder some years ago. It is limited in time to 120 minutes or something like that in mono mode per disc. It has moving parts...
Hi Thomas, ( Our paths crossed some years ago in solar radio astronomy! ) I found the R-05 on Amazon, it looks pretty nice. I'm not too worried about...
Hi Ned, I just bought one yesterday from Jaycar for AUD$179 and the product code is XC 0386 It can record uncompressed WAV files as well as MP3's and it has...
Here was an interesting sprite cluster that was generated from a 155 kA lightning stroke that occurred over 600 KM from my observatory. During the time of the...
Hi Eddi & Manfred, ... Yes - and here it is: http://www.df3lp.de/cgi-bin/ki/show_wf.cgi?date=12-05-04 Peter, 54N 10E...
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Paul
paul@...
May 4, 2012 7:56 am
I only measured the 15kHz transmission, 2012-05-03_09:45 to 09:54 Bearing from Todmorden was particularly steady, std deviation in () of 5 second averages, ......
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Paul
paul@...
May 4, 2012 8:59 pm
I measured the bearing of today's signal at 23kHz and got 76 deg which is what we had on 2012-03-21 in the early morning. This compares with about 68.4...
Stefan, Thanks for the tip! I'm looking at the "zoom h2" also. It has mic and line level inputs and the AGC can be disabled. I need to act soon or I'll be...
Hi Ned, I did some more testing last night and it turns out that the cut-off below 50Hz was from my transmission line. When I plugged the recorder directly...
Hi Ned I think this has been noted before .....you want one that will record in uncompressed format like .wav. The MP3 format for instance loses too much of...
Thanks to everyone for the response to my question, it is clear now that the phantom signal is the aliased version. This raises the question of what external...
Hi all, I occasionally use a Zoom H2 for 'outdoor' VLF recordings, and am generally quite pleased with it (also with the *audio* recording capabilities). One...
Hi Michael, Still my 'old time favourite': E-MU 0202. It's not in production anymore, but you may still be able to find it or one of its successors. The E-MU...
I have seen several references to frequency stepped staircases during my period lurking on this board, but I don't recall anything on broadband amplitude...
Whoops, forgot, no attachments here. I have now added it to the <g4csd vlf files> folder in the Files section. Paul ... [Non-text portions of this message...
