RADIO WAVES below 22 kHz, MESSAGE BOARD
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| 01/13/01 03:18:38 PM | |
| Call or Name: | Klaus Betke DL4BBL |
| Subject: | Russian ELF station Zevs |
| Message: | Hi Trond, Renato, all, your article was just in time, while I was about to do some ELF tests with an E-field antenna (whip + highimpedance amp) and a portable FFT analyzer HP3569a. Some spectra from this afternoon show a significant peak at 81.9 ... 82.0 Hz, others do not. Then the batteries went down (done in a quiet and cold place in the open). More to follow... |
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| 01/12/01 01:47:38 PM | |
| Call or Name: | Wolfgang, DC3MF |
| Subject: | ULF- ELF Observations |
| Message: | Dear Renato, first at all, congratulation for your very interesting page about natuaral-radio. Here in Germany I am observating the range below 24 kHz frequently and so it is always a great pleasure to receive some informations from other natural-radio entusiats. bye bye de Wolf, DC3MF |
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| 01/11/01 03:49:43 PM | |
| Call or Name: | Alberto I2PHD |
| Subject: | New version of Argo |
| Message: | Hi all, for those interested, build 113 of Argo has been uploaded to http://www.weaksignals.com Argo is a QRSS viewer, that can also be used for spectral analysis, up to a point. Freeware for ham and hobbist use. Try it and please send me your feedback. TNX. Alberto |
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| 01/08/01 04:24:29 PM | |
| Call or Name: | Casey |
| Subject: | Good morning! |
| Message: | Good morning form here in drizzling Orange County ! |
| 12/28/00 01:36:01 AM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | RDL Russian Navy Krasnodar active on 21.10 kHz |
| Message: | The Russian Navy VLF transmitter at Krasnodar is also active at 21.10 kHz. This frequency has up to now been used by the far-east RDL transmitter site at or near Khabarovsk. Format is similar to the ordinary RDL transmissions at 18.10 kHz, short CW and MSK messages. |
| 12/27/00 11:50:00 PM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | Regarding Alpha / RSDN-20 |
| Message: | Hello Alan The Alpha transmitters has been off air for some days as you have noticed. This happens at (ir)regular intervals, most of the transmission breaks are for routine maintance, but acording to the Alpha operator is the system also under constant upgrading. At this time of year, with low static is even the far east station near Khabarovsk possible to receive here at ALFLAB in Halden, Norway. |
| 12/26/00 05:54:51 AM | |
| Call or Name: | SV8QG |
| Subject: | 10KHZ and up |
| Message: | very good site but no mutch activity latly!!! no news BAD news for the hobby thanks for the site alex |
| 12/26/00 04:06:34 AM | |
| Call or Name: | Thirteenth_flr- |
| Subject: | Electronics |
| Message: | I like weird electronics. Communicating with Mother Nature is a Blast! |
| E-mail Website |
| 12/25/00 12:39:33 AM | |
| Call or Name: | Alan |
| Subject: | alpha signals? |
| Message: | can you receive alpha signals from yesterday morning?I not!Is it problem of my antenna,or a strange phenomena?Thanks for an answer...ALAN |
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| 12/20/00 06:12:39 AM | |
| Call or Name: | Casey Crane |
| Message: | I've just dicovered your website but I've long been interested in VLF science. I quite excited to begin building a station as soon as I can right after Christmas. I myself Have Been a serious electronic hobbyist for thirty years so at some later date I may have some design input to offer. |
| 12/03/00 07:09:41 PM | |
| Call or Name: | Marco IK1ODO |
| Subject: | Tavolara ICV ? |
| Message: | Has anyone logged Tavolara ICV on 20.27 kHz? What are the transmission times? Trond? Andrea? 73 - IK1ODO p.s. - watch WWW.VLF.IT for new stuff! |
| 12/02/00 03:26:21 AM | |
| Call or Name: | Hans Michlmayr VK6ZT |
| Subject: | VLF / ELF activity |
| Message: | Recorded some interesting activity between 1kHz and 12kHz on 27thNov. Also some unusual frequ. mod. activity on 30thNov between 3 - 86Hz. I'm very intersted in any comments on this and possible explanations. Have uploaded all the spectrograms to my website, or go direct to : "http://wavelab.homestead.com/ELF_recordings.html" |
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| 11/29/00 05:59:57 PM | |
| Call or Name: | Jethro |
| Subject: | Frequency lock |
| Message: | Does anyone have a circuit for "locking" onto a frequency (say 589hz) and monitoring ONLY that frequency? I want to do this with a circuit NOT by computer with s/b card. I have a varible frequency generator - but how do you make a receiver "lock" onto that frequency for monitoring? |
| 11/27/00 12:56:07 AM | |
| Call or Name: | Joe Rich KI6ON |
| Subject: | Great site |
| Message: | Great site. I have been interested in VLF and below for some time but am just now building receivers. I was wondering if anyone was doing long baseline correllation studies. I think this should be possible using three widely spaced sites and simultaneously recording a very accurate time signal (such as WWVB divided by 6) along with the ULF/VLF signal. The recordings would then be correlated in a computer. With three sites, should be able to determine source of signals in three dimensions. Thanks again for a great site. I will be back, probably with lots of questions. By the way, tried to send you an email earlier and it was rejected. |
| 11/26/00 08:05:38 PM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | Russian time signal stations |
| Message: | Russian time signal station RJH63 at Krasnodar by the Black Sea is also receivable with sound-card receivers. Even though the main transmission is at 25.00 and other frequencies outside the range of soundcards, there is also a short transmission on 20.50 kHz each day. Tune up and phase adjust at 11:30 UTC followed by unmodulated carrier at 11:42 UTC and finally FSK from 11:36 to end of transmission at 11:40 UTC. This also apply to the other station operated by RIRT in Russia, RJH66 RJH69 RJH77 RJH99 and RAB99, but here is the 20.50 kHz transmission from XX:41 UTC to XX:47 UTC acording to each separate stations transmission schedule. Have fun. |
| 11/23/00 03:33:19 PM | |
| Call or Name: | Altair / N4YWK |
| Subject: | VLF ? Begin at OpenLab ! |
| Message: | Excellent web site. I recently had the privelege of visiting Renato in Itlay and seeing his station. Renato shows how to get first class results with affordable equipment. Anybody interested in signals below 22 kHz should begin at OpenLab ! 
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| 11/10/00 01:46:31 AM | |
| Call or Name: | IK0VVE Massimiliano Recchia |
| Subject: | Leonids |
| Message: | Watch out to Leonids on 17th and 18th November!! Good luck!! |
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| 11/07/00 06:29:28 AM | |
| Call or Name: | Jonathan Winter |
| Subject: | VLF |
| Message: | Thanks for haveing this site. Ever since I met a fellow vlf'r 15 years ago, I have been hooked. I intend to put a VLF exhibit at the new Bellingham Antique Radio Museum. |
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| 10/30/00 08:22:30 PM | |
| Call or Name: | Anonymous Surfer |
| Message: | Great web site. If you have a moment take a look at my web site. Getting started in radio presenting..? Click now for some great information on becoming a Radio Presenter.  |
| 10/27/00 09:55:51 PM | |
| Call or Name: | Andrea Borgnino IW1CXZ/0 |
| Subject: | Tavolara is active ! |
| Message: | Hello, in a visit to one Italian Navy Radio Center i found two VLF receiver tuned on 20.27 khz. They use for check every day the Tavolara ICV 20.3 Khz Vlf trasmitter that is still used for submarine communications by Italian Navy. Wishes, Andrea |
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| 10/27/00 07:08:02 AM | |
| Call or Name: | OZ1MAS |
| Subject: | Looking for used portabel VLF reciver... |
| Message: | Hi all, We are now 3 friends op here in Denmark, who would like to try VLF reciving in the field, so if you have a old portabel reciver you don't use anymore please let us know (don't too expencive)... when we have got a reciver we would try to make a small VLF reciving group here in Denmark... all the best from Jorgen... |
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| 10/25/00 07:00:33 AM | |
| Call or Name: | Matt W |
| Subject: | my first VLF recordings |
| Message: | Hey all this is an amazing website. I'm trying to learn but I have much catching up to do. :-) If you have a moment, check my web page and take a look at my ALPHA recording as well as a strange intermittent digital chirping centered on 3kHz. some radio fax or slow scan broadcast? see ya! -matt |
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| 10/22/00 08:53:25 AM | |
| Call or Name: | OZ1MAS |
| Subject: | Nice VLF page you have here... |
| Message: | Nice to se your fine hompage for VLF here, I also have a little infopage (in Danish) at my homepage. I Don't think there are any active VLF listners in Denmark. I hope for contact with other "danes" so we could make some listning together... You are welcome to visit my homepage or send me a E-mail... |
| E-mail Website |
| 10/19/00 02:26:51 PM | |
| Call or Name: | Jader Monari |
| Subject: | EMBLA 2000 Home Page is On Line again! |
| Message: | Please visit this VLF expedition: http://bracco.bo.cnr.it/embla2000/home.html Jader Monari |
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| 10/15/00 11:03:24 AM | |
| Call or Name: | Jader Monari |
| Subject: | EMBLA web site is off line |
| Message: | Unfortunally due to problems with the WEB server, the EMBLA site is off line . I hope to restore the system as soon as possible. I'll give you the newest address as soon as possible. Regards Jader Monari |
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| 10/13/00 01:01:43 PM | |
| Call or Name: | Hans Michlmayr VK6ZT |
| Subject: | ELF |
| Message: | Great site! Hope being able to contribute to this forum in the near future. Completing my ELF Rx, will be using it with a 25x53m 40turn buried loop . |
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| 10/06/00 12:32:58 PM | |
| Call or Name: | Renato Romero |
| Subject: | Collaborator's photo |
| Message: | Dear Friends and web-site collaborators, as you can see many others collaborators has got a photograph of them in a Direct contact Session of RADIO WAVES below 22 kHz. I should like to put the photo of all the collaborators on this session; if you are interested send your photo at openlab@vlf.it or send papier version at: Renato Romero - 12, Str. Luisetti - 10040 CUMIANA - ITALY. Thanks in advance for collaboration. Bye, Renato. |
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| 10/05/00 09:04:00 AM | |
| Call or Name: | Larry Kramer |
| Subject: | Very Interesting |
| Message: | Scientists from the University of Washington and NASA are experimenting with miniature magnetospheres as an innovative form of space transportation. |
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| 10/03/00 03:53:00 AM | |
| Call or Name: | Terry Bendell |
| Subject: | Greetings |
| Message: | Greetings Fellow Elfers from Canada, The Winter season is approaching here and that means lots of ELF and LF work! Anyone Wishing to correspond with me is more then welcome to share your experiences. |
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| 09/27/00 12:29:09 PM | |
| Call or Name: | Hans Guenter |
| Subject: | unidentified VLF-signals |
| Message: | hello list, more than one year ago, i've took some VLF-recordings. The bee like humming noise (on my website) is still unidentified. Is there a VLF-entusiast with a good idea? Thank you very much for any response! Hans Guenter |
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| 09/22/00 03:04:04 PM | |
| Call or Name: | IW0BZD |
| Subject: | VHF / VLF Test |
| Message: | I wish to contact a person on American territory who can receive on frequency of 144MHz and can record one minute of spectrogram, to do a control on experiment that I am leading in the VLF spectrum. To collaborate please contact me in E-mail and will be supplied all details of the test. It is very easy. - Best Regards - Pino Accardo |
| E-mail Website |
| 07/29/00 05:03:16 PM | |
| Call or Name: | G4CNN - John Sexton |
| Subject: | all sorts |
| Message: | Interested in LF, VLF, ELF, etc. Active on LF 136 kHz. Computer Networks is just me, not some huge great company. I plan to add my Radio stuff to the web site, but at the moment it is mostly about hieroglyphics. |
| E-mail Website |
| 07/25/00 04:13:54 PM | |
| Call or Name: | Jader Monari |
| Subject: | ELF receivers |
| Message: | We are intersted in your ELF experiences. Here we have developed a VLF correletion receiver with 2 square antenna for an expedition in Norway in order to monitor 1-10KHz bandwith.
If you are interested in this collaboration, please contact me. |
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| 07/25/00 12:51:54 PM | |
| Call or Name: | Frank Reynolds, KC2FDW |
| Message: | (no comment) |
| 07/24/00 08:38:42 PM | |
| Call or Name: | Pete uk |
| Subject: | peace and quiet! |
| Message: | Nice and "quiet" this afternoon as Alpha's gone again.Just a few whistlers.If only every day was free of that beep-boop! |
| 07/18/00 10:28:42 AM | |
| Call or Name: | Renato ROMERO |
| Subject: | NEW VLF HAM-BAND, via RSGB reflector |
| Message: | ""Subject: VLF: 8.9 to 9 kHz in DL
... after Walter, DJ2LF and Markus, DF6NM started with some very low frequency tests recently, three of us have asked the German RegTP for a special license to use the range between 8.9 to 9 kHz for scientific studies. The licenses were granted recently, with a transmitter output of 20 Watt and the modulation bandwidth limited to 100 Hz ... Geri, DK8KW (W1KW)"" |
| 07/17/00 08:46:46 PM | |
| Call or Name: | Art Winterbauer |
| Subject: | Geomagnetic Storm or Lightning whistlers? |
| Message: | Around midnight July 16 (0600Z July 16) I heard many whispery whistlers, seemingly some of 3 and 4 "hops", during the geomagnetic storm. There was even a cascade of whistlers! See my web page for samples and graphs. But I have questions.
1. Are whistlers due solely to lightning? Or are they also caused by particle bombardment from the sun? If so, how do you tell the difference? What VLF activity takes place during a geomagnetic storm, if not whistlers? 2. Have any studies been conducted to determine if whistlers can only be heard from storms at the magnetic conjugate points? Can they also be caused by local storms? 3. Most of my whistler samples are preceded 2 seconds (approx.) by a sharp static discharge. Are the two connected? If the electromagnetic pulse travels at 186,000 miles/sec, then wouldn't that physically separate the two events by a considerable distance? Thanks --Art |
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| 07/17/00 09:33:38 AM | |
| Call or Name: | Larry Kramer |
| Subject: | Schumann resonances |
| Message: | I have a Schumann resonance recording on my site
as well. |
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| 07/14/00 11:11:25 AM | |
| Call or Name: | Renato Romero, IK1QFK |
| Subject: | Re: Schumann resonances |
| Message: | To Pete UK: send me your e-mail address; I will send a wav file of 500 s., recorded this morning in a 0-86Hz frequency range, where the Schumann resonances are very clear in a vertical field.
Bye, Renato |
| 07/12/00 07:06:54 PM | |
| Call or Name: | Mimmo |
| Subject: | Geomagnetic storm warning |
| Message: | SOHO recorded an Earth-directed coronal mass ejection (CME) on July 11th. The eruption was probably associated with an X1-class solar flare. Material from these explosions could arrive in the vicinity of our planet by July 13th. NOAA forecasters estimate a 40% chance of major geomagnetic activity at middle latitudes on July 14, 2000.
|
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| 07/09/00 04:51:23 PM | |
| Call or Name: | Pete UK |
| Subject: | Schumann resonance |
| Message: | Does anyone know where I can find a .wav file of the actual sound of Schumann resonance?
A few years ago there was a Channel 4 (Nova in the US?) programme in the UK about Lightning which actually had the "humming" sound of Schumann resonance on it. I've seen spectrogram plots and graphs but no actual sound file of Resonance anywhere. Thanks. |
| 07/09/00 11:34:40 AM | |
| Call or Name: | Mimmo |
| Subject: | Magnetis storm |
| Message: | Coronal mass ejection has been recorded from SOHO (solar and heliospheric observatory)on July 7. Estimated magnetic storm will arrive near the Earth on July 11. |
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| 07/09/00 06:59:52 AM | |
| Call or Name: | DK8KW |
| Subject: | VLF Transmitting license |
| Message: | Hello VLF fiends,
the German licensing authority issued three special licenses to transmit between 8.9 and 9.0 kHz with an output power of 20 Watts. We do not expect spectacular dx, but who knows. Information on the ongoing experiments will be posted at www.qru.de Vy 73 Geri, DK8KW (W1KW) |
| Website |
| 07/07/00 11:31:21 PM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | Alpha |
| Message: | The Alpha transmitter now on air is most likely the transmitter at Krasnodar 45:24:17.9 N 38:09:29.0 E There are sometimes very weak Alpha sequence signals on a bearing of 63° from my QTH, most likely from the transmitter at Novosibirsk. |
| 06/22/00 07:10:08 PM | |
| Call or Name: | Eric Vogel |
| Subject: | HAARP & ULF |
| Message: | Sorry, I didn't mean to post anonymously. The HAARP post is from Eric Vogel. |
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| 06/22/00 07:06:39 PM | |
| Call or Name: | Anonymous Surfer |
| Subject: | HAARP & ULF |
| Message: | Just ran across this posted letter. Thought it might be of interest to folks interested in ULF.
http://elfrad.org/2000/haarp.htm |
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| 06/20/00 08:27:05 AM | |
| Call or Name: | Renato Romero |
| Subject: | 82 Hz alert |
| Message: | Since yesterday afternoon 04:43 PM and during all the night weak tone at 82 Hz appear and desappear. The signal is 11 dB over the atmospheric noise background. Received with big square horizontal loop (3 turn, 30m x 30m side). |
| 06/19/00 11:39:33 PM | |
| Call or Name: | pete UK |
| Subject: | alpha |
| Message: | 19:6:00 Alpha seems to be back, with the old style Beep-boo sound. |
| 06/09/00 03:08:54 AM | |
| Call or Name: | geoff waterston |
| Subject: | aurora lots loud chorusing |
| Message: | hi
i'm geoff from the UK. heard lots of loud auroral chorus at 12.00UT using 50 turn loop ( 1 meter square )and 2 opamp receiver. The setup was 100 meters from power lines on the beach near my home. Also lots of strange whistlers |
| 06/07/00 09:17:13 PM | |
| Call or Name: | Art Winterbauer |
| Subject: | approaching geomagnetic storm |
| Message: | This was passed on to me. Possibilities for dawn chorus? Other effects?
------------------------------------- Update 1300 MDT 6 June 2000 Initial satellite and ground based observations show the 3 MAJOR flares earlier today indeed produced massive coronal mass ejections (CME) that will impact the earth from late 7 June to late 8 June (depending upon the velocity of the shockwave, which will be determined from later observations). The single M-class and two X-class flares, occuring within a two hour period, came from region 9206, which is less than 30 degrees from the center of the sun, or placing it well within the "window" where the trajectory of the shockwave is earth-bound. Already, several agencies are predicting SEVERE to EXTREMELY SEVERE Geomagnetic storms from today's events. That will be a K index of 8 to 9 and an A-index >100. This will cause complete HF blackouts, spectacular auroras into the lower latitudes and possible damage to orbitting satellites. I will post today's NOAA RSGA with commentary when it is released later today for those interested in this upcoming "biggie." 72, Paul NA5N |
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| 06/05/00 07:56:44 AM | |
| Call or Name: | Gote in Sweden |
| Message: | This morning (2000-06-05 @ 0500 UT) chorus was obvious. |
| 06/02/00 11:54:43 AM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | Alpha is back on air ! |
| Message: | This has been some very exciting minutes, Alpha is now back on air at 11:44 with a new set on frequencies and a new sequence. The frequencies are seems to be the old secondary Fx's, I got it all recorded and post more info when I have analyzed the file tonight. Have to rush back to work, are already terrible late !! |
| 06/02/00 11:15:10 AM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | Alpa |
| Message: | Still no ordinary Alpha transmission, but there is a weak signal on the Alpha secondary frquency 12.500 kHz. The bearing is between 30 - 40 ° from my QTH, in the direction of the Kola peninsula in Russia. |
| 06/02/00 08:55:20 AM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | Alpha |
| Message: | The Russian Alpha nav-aid system has stopped transmitting. When I checked the band tonight at 00:48 here in Halden, the band was quiet from 11.905 kHz to 14. 881 kHz except for sferics and noise. Right now are the Alpha system still quiet !
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| 05/26/00 09:32:57 AM | |
| Call or Name: | Manfred Kerckhoff |
| Subject: | RDF project |
| Message: | The activity of VLF stations is not always the same. There are changes in frequency and even location. I compiled a table of some of the really active stations. The QTH of these stations can be found out by radio direction finding from several locations, e.g. from YOUR QTH. Read about this technique on my site and join in in RDF. |
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| 05/26/00 09:01:46 AM | |
| Call or Name: | Gote in Sweden |
| Message: | Also this morning (2000-05-26 @ 0600 UT) one could enjoy chorus with weak whistlers. |
| 05/25/00 07:48:27 AM | |
| Call or Name: | Gote in Sweden |
| Message: | This morning (2000-05-25 @ 05:20 UT) strong chorus was heard. |
| Website |
| 05/24/00 05:50:25 PM | |
| Call or Name: | Renato ROMERO |
| Subject: | Grimeton event |
| Message: | The radio station Grimeton celebrates 75year anniversary on July 2nd, 2000. The open house event take place 8am - 2pm (GMT) Sunday the second of July 2000. The transmitter will go on air on 17,2 kHz with 200 kW at 8.30 and 8.45am. 0.30 and 0.45pm (GMT).
Details at http://www.telemuseum.se/Grimeton/jubilee.html |
| 05/24/00 07:48:32 AM | |
| Call or Name: | Gote in Sweden |
| Message: | Around 0500 UT this morning (2000-05-24), one could hear strong hiss with embedded chorus.
|
| Website |
| 05/18/00 03:43:38 PM | |
| Call or Name: | Manfred Kerckhoff |
| Message: | Some comments on Trond logs.
14.858 equals the 3rd segment of the new scheme; station X 12.075 equals the 4th segment of the new scheme; station X 14.858 equals the 4th segment of the new scheme; station KR (the "ghost") 12.102 equals the 5th segment of the new scheme; station X 11.929 equals the 6th segment of the new scheme; station KR 12.705 equals the 1st segment of the new scheme; station KR 11.292 equals the 2nd segment of the new scheme; station X That means, you are receiving two of the three stations. Station KO (if it is still KO) seems to be out of your range. The frequencies measured may not be quite correct. Which receiving equipment - apart from your loop - do you employ? It would be of great help if you could turn your loop and take the bearings of the stations (true North is zero degrees, West is 90 and so forth). Especially the new station in your neighborhood is of interest. An azimuthal map centered at your qth is helpful. If you need one, let me know. Some infos on classic ALPHA: Hyperbolic navaid, Russian equivalent to western OMEGA (closed down), three stations (see below), master station NO, 50 - 100 kW ERP, cycle length 3.6 s compared to 10 s - cycle of ex-OMEGA (that means suitable for faster moving vehicles, e.g. planes), length of one time slot is 400 ms, 200 ms spacing. Stations: Krasnodar: 45N/38E Novosibirsk: 54N/83E Komsomolsk-na-Amur: 50N/137E Old scheme: f. kHz - 01 / 02 / 03 / 04 / 05 / 06 11.905 - KR / KO / NO / NO / NO / ---- 12.649 - KO / KR / ---- / ---- / ---- / NO 14.881 - NO / NO / ---- / ---- / KR / KO (by Steve McGreevy/M.F.Kerckhoff '97) The new system is different, a new frequency appears and even the locations may have been changed. f. kHz / 01 / 02 / 03 / 04 / 05 / 06 11.905 / --- / X / --- / KO / --- / KR 12.100 / --- / --- / --- / --- / X / --- 12.649 / KR / --- / --- / X / KO / --- 14.881 / KO / --- / X / KR / -- / KO (M.F.Kerckhoff, 05.12.00) |
| 05/18/00 05:38:35 AM | |
| Call or Name: | Art Winterbauer |
| Subject: | May 15: many whispery whistlers |
| Message: | On May 15, dusk, I recorded many whistlers. They were very weak (like sighs), with about one every few minutes, on average. There was aurora that evening further north, I understand. I've posted samples on a web page. |
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| 05/09/00 07:26:38 AM | |
| Call or Name: | Eric Vogel |
| Subject: | Hum Blanker |
| Message: | I have posted construction details on my hum blanker unit. |
| E-mail Website |
| 05/09/00 06:42:02 AM | |
| Call or Name: | Gote in Sweden |
| Message: | I suggest an experiment with a new antenna design in the VLF business, The "Sheet Metal Antenna", SMA ! You take a square piece of aluminium (say 300 x 300 mm). You drill a hole in the middle. Connect this point to your VLF buffer antenna input, via a short screw. Hold this arrangement over your head. Listen! |
| Website |
| 05/06/00 06:05:48 PM | |
| Call or Name: | Dave Ewer |
| Subject: | vlf activity 5-5, 5-6-00 |
| Message: | spent the night monitoring in the horse heaven hills. 10pm PST USA to 7am PST. sparse whistler activity with a few decent random whistlers. aurora just after 4am PST but fairly faint. |
| 05/03/00 04:34:08 PM | |
| Call or Name: | Art Winterbauer |
| Subject: | Curious Buzzing Noises |
| Message: | Around dusk on May 2 I heard noises for about 7 minutes that sounded like the buzzing of bee wings. This may have been the energy generated by mosquitos circling and contacting the whip antenna on the receiver. I've posted these sounds on a web page. Has anyone else heard such sounds? |
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| 05/01/00 06:41:47 AM | |
| Call or Name: | Eric Vogel |
| Subject: | Hum Blanker |
| Message: | Tonight, I posted on my site preliminary results from the hardware hum blanker. I will post circuit details soon. |
| E-mail Website |
| 04/27/00 11:21:33 AM | |
| Call or Name: | Renato Romero |
| Subject: | REPLAN INSPIRE OPERATIONS |
| Message: | Sended me by Flavio GORI: From Bill Taylor: INSPIREd ones, Due to a substantial change in the MIR orbit, perhaps due to orbit raising maneuvers, we have had to replan this weekend's operations. The new operations are:
Pass # ISTOCHNIK start time Location E28-1 00-apr-28 21:37:00 Belgrade to Kiev E28-2 00-apr-28 23:14:00 Minsk to Tambov E29-1 00-apr-29 00:31:00 Plymouth to Essen 29-2 00-apr-29 03:40:00 SW Ohio to N Vermont 29-3 00-apr-29 05:12:00 E South Dakota to E Michigan 29-4 00-apr-29 06:42:00 SW Oregon to C Idaho 29-5 00-apr-29 10:01:00 SE Ohio to E N. Carolina E29-6 00-apr-29 21:53:00 Marseille to Graz E30-1 00-apr-30 01:06:00 Cracow to Bryansk E30-2 00-apr-30 02:38:00 Paris to Venice 30-3 00-apr-30 03:55:00 E Kansas to NE Illinois 30-4 00-apr-30 05:25:00 C California to NE Minnesota |
| 04/24/00 10:58:01 PM | |
| Call or Name: | Trond Jacobsen in Norway |
| Subject: | ALPHA radionavigation transmitters |
| Message: | From my QTH (59°3'N-11°22'E) here in Halden, Norway it is now, 22:45 local time, possible to receive 6 alpha transmitters ! The 6 transmissions are in the folowing sequence:
14.858 kHz (-43dB) 12.075 kHz (-43dB) together with a "ghost" on 14.858 kHz (-43dB) 12.102 kHz (-44dB) 11.929 kHz (-49dB) 12.705 (-49dB) and finally 11.292 kHz (-46dB) before the sequence start all over again. Antenna is a 1 meter loop with 32 turns positioned to receive in a east/west direction. Alpha transmissions with 6 transmitters was also received at my QTH on the 19.th of April at 22:11 local time. What are the Russians up to ? Anyone out there that have some updated info about ALPHA ? |
| 04/24/00 06:44:08 AM | |
| Call or Name: | Dave Ewer |
| Subject: | chorus |
| Message: | light chorus in southeastern washington state beginning at 1:15 am PST 4/23/00. few small whistlers now and then all thru the night |
| 04/24/00 05:13:14 AM | |
| Call or Name: | Eric Vogel |
| Subject: | conjugate points |
| Message: | Art,
You can calculate your magnetic conjugate point using the following link http://nssdc.gsfc.nasa.gov/space/cgm/cgm.html I use http://www.intellicast.com/LocalWeather/World/SouthAmerica/Argentina/BuenosAires/SouthAmericaHIRES/ to watch for storms near my conjugate point. I have read that the storms need only be close, not necessarily at this point. Best luck I have had with whistler activity has included storms near the conjugate point and magnetic storm activity. Not proof really, but encouraging. -Eric |
| E-mail Website |
| 04/23/00 09:26:58 PM | |
| Call or Name: | Art Winterbauer |
| Subject: | Conjugate weather for whistlers? |
| Message: | Some questions about the best times for listening to whistlers:
1. Have people had luck monitoring weather predictions for the conjugate points? If severe storms are predicted, then is there a better chance of hearing lightning-induced whistlers? 2. Where are these conjugate points? Is the conjugate point the opposite point on the earth from your location? Or is it a point equidistant from the equator in the opposite hemisphere? That is, from Denver, Colorado in the western U.S., would I monitor weather forecasts for the southern Indian Ocean or for the south Pacific west of South America? Thanks! --Art points for |
| 04/23/00 05:50:11 AM | |
| Call or Name: | LOW |
| Subject: | Greetings |
| Message: | On Board! |
| 04/21/00 10:05:23 AM | |
| Call or Name: | Renato Romero |
| Subject: | INSPIRE OPERATIONS |
| Message: | Sended me by Bill PINE:
Dear INTMINS Participant, The MIR Space Station is no longer on the predicted track for operations this month. This is probably due to some maneuvering after the return of the crew. The operations scheduled for April 22 have been cancelled. We will continue to monitor the orbit projections and if they settle down, we will replan for the next weekend (April 29-30). We will keep you posted on developments and if a new schedule proves possible, we will publish it via email. Coordinated observations will be conducted on April 29-30 as scheduled. |
| 04/19/00 08:00:26 PM | |
| Call or Name: | Trond Jacobsen in Norway |
| Message: | Very good VLF listening conditions right now here in Halden, Norway close to the Swedish border. Are receiving a unknown transmission on 18303 Hz ( +/- 43 Hz ) at -39 dB. Have made audio and spectrogram image recording of the transmission. Besides that are the Alpha transmissions coming in load and clear here tonight. |
| 04/16/00 10:06:53 AM | |
| Call or Name: | Renato Romero |
| Message: | What happen to the ALPHA russian stations?
The ALPHA tones appears and disappears during these days, with different sequence and frequency; yesterday the cycle was: 11.9 - 14.9 - 12.6 - 12.1 kHz. Today is: 14.9 - 11.9 - 12.6 kHz, and all signals are with a same level. |
| 04/15/00 06:05:13 PM | |
| Call or Name: | Art Winterbauer |
| Message: | Following up on Dave Ewer's remarks of midnight whistlers 4/14/00:
Between 11-11:30 PM Mountain Daylight Savings Time on 4/13/00, I heard several faint whistlers and recorded one fairly loud one. But I was too sleepy (and out of audiotape) to stay later. Now I wish I had! I use a receiver of Eric Vogel's design and an Optimus tape recorder. |
| 04/15/00 06:38:24 AM | |
| Call or Name: | Larry Kramer |
| Message: | Did anyone catch those strange pure note whistlers on 4-7-00?? I have samples of them on my web site. |
| E-mail Website |
| 04/15/00 01:01:43 AM | |
| Call or Name: | Dave Ewer |
| Message: | 4/14/00 beginning at midnight PST I listened to and recorded whistlers until 7:32am PST. steady all thru the night. some pretty good ones. hope some of the rest of the gang heard these too. |
| 04/11/00 12:13:50 AM | |
| Call or Name: | Renato Romero |
| Message: | Sended me by Flavio GORI, Eur. Coord. INSPIRE:
"... as you know the Russian space craft - MIR - is back on stage again. Those guys have done a very good work and we'll record INTMINS one more time." Operations for April, 2000 will probably be as follow: 00-apr-22 05:51:00 to 05:58:00 West Europe 00-apr-22 10:16:00 to 10:27:00 NW US, E Can 00-apr-22 13:31:00 to 13:38:00 Central, S East US 00-apr-22 15:00:00 to 15:07:00 West US 00-apr-28 21:59:00 to 22:06:00 S Eur, Russia 00-apr-28 23:32:00 to 23:39:00 W Eur, Russia 00-apr-29 02:40:00 to 02:47:00 W Eur, Russia 00-apr-29 03:55:00 to 04:02:00 S, Central US 00-apr-29 05:28:00 to 05:39:00 SW, NC US, Can 00-apr-29 07:04:00 to 07:15:00 NW, US, Can 00-apr-29 22:12:00 to 22:19:00 Eur, Russia 00-apr-30 01:19:00 to 01:26:00 Eur 00-apr-30 02:34:00 to 02:41:00 East US 00-apr-30 04:10:00 to 04:17:00 North US, Can 00-apr-30 05:41:00 to 05:51:00 Central US, Can 00-apr-30 10:28:00 to 10:35:00 Central US 00-apr-30 12:00:00 to 12:07:00 West US Detailed scheduler will be published on this web site, or on this message board. |
| 04/10/00 06:15:58 AM | |
| Call or Name: | Eric Vogel |
| Message: | Had a good streak of whistlers during the storm. Clearly heard double hops at one point, but the spectrogram suggests triple hop (see sample on my web site). |
| E-mail Website |
| 04/08/00 11:18:40 PM | |
| Call or Name: | Lowfer |
| Message: | Just getting a local group of experimenters
going here in central Ontario Canada. Happy Hunting! |
| 04/08/00 10:19:15 PM | |
| Call or Name: | Gote in Sweden |
| Message: | Regarding the aurora 6/4 -7/4.
During the whole event, no VLF-sounds were heard that related to the visual apperances above! |
| Website |
| 04/07/00 07:38:02 AM | |
| Call or Name: | Larry Kramer |
| Message: | BIG STORM JUST HIT!!! (K-Index: 8) Heading out to listen to VLF tonight!!!
|
| E-mail Website |
| 04/04/00 10:51:42 AM | |
| Call or Name: | Renato Romero |
| Message: | In the same time of chorus (020400-06:30) weak anomalous activity between 3 Hz and 40 Hz in NW Italy. |
| 04/02/00 10:46:10 PM | |
| Call or Name: | Gote in Sweden |
| Message: | This morning (2000-04-02 @ 06:30 UT), chorus and hiss were recorded by me. |
| Website |
| 03/29/00 12:09:08 AM | |
| Call or Name: | Renato Romero, IK1QFK |
| Message: | reported on LWCA message board:
Next transmission of SAQ (17.2 kHz) is July 2, 2000, when the station celebrates its 75th birthday !There will be transmissions July 2, 2000 from the Grimeton alternator at 17.2 kHz. There will be three (3) transmissions over a 24 h. period. Each will contain a message, repeated twice. Message sended by Karl, sm6hcj@seaside.se |
| 03/19/00 06:31:07 PM | |
| Call or Name: | G3XBM |
| Message: | GREAT site for VLF information. I have a little on my site too but this one is way better!! I used to be very interested in "Earth Mode" (through the ground) communications 0-10kHz.
Regards and thanks. Roger |
| E-mail Website |
| 03/19/00 06:05:17 PM | |
| Call or Name: | Larry Kramer, KC6QPO |
| Message: | Hi everybody, just thought I'd say hello.
NASA INSPIRE Team 19, Larry Kramer |
| E-mail Website |
| 03/15/00 12:25:54 PM | |
| Call or Name: | Gote in Sweden |
| Message: | Last night (2000-03-14), between 1700 and 1830 UT, one could hear strong whistlers at a rate of one every fifth second. Clusters of one every second happened often. |
| Website |
| 03/15/00 11:09:46 AM | |
| Call or Name: | Renato Romero, IK1QFK |
| Message: | About meteor showers, try at:
http://www-space.arc.nasa.gov/~leonid/Global-MS-Net/GlobalMSNet.html (Global meteor scatter network) and http://www.imo.net (International meteor organization) Bye, Renato. |
| 03/12/00 06:58:43 PM | |
| Call or Name: | Art WA5OES |
| Message: | Is there a site that lists a calendar for meteor showers? I'd like to try to listen to the ionized trails from minor showers as well as major ones. Thanks! |
| 03/05/00 10:19:06 AM | |
| Call or Name: | Renato Romero IK1QFK |
| Message: | from: THE LOWDOWN, March 2000.
Natural Radio / Coordinated listening for Spring Equinoxe. "...the dates are the weekends of March 18 - 19 and March 25 - 26. As a minimum, please monitor and record, if possible, the first six minutes of the hour beginning at 6:00 AM local time. This should be very close to local sunrise. You are encouraged to monitor up to three hours before and two hours after local sunrise." in a script of Mark Karney, N9JWF (e.mail address: naturalradio@norwest.net) |
| 03/02/00 08:51:47 PM | |
| Call or Name: | Tracey Gardner G5VU |
| Message: | Nice site Renato, keep up the good work.
|
| 03/02/00 05:46:18 PM | |
| Call or Name: | IK1QFK, Renato Romero |
| Message: | Many thanks to all collaborators!
About modulated statics: I recorded similar signals, in 200 Hz - 9 kHz band, with amplitude modulated statics on cycle of 40 Hz; but I don't know the phenomenon's origin. An interesting note: in the same spectrogram (of 3 sec.) there were many statics with different modulated cycle (20 Hz to 70 Hz). Should it be an interesting argument to add in this web site? |
| E-mail Website |
| 03/02/00 12:56:48 AM | |
| Call or Name: | Mark Karney N9JWF |
| Message: | Your new server sends pages very fast. Much better than the old one. Great website! |
| E-mail Website |
| 03/01/00 04:34:44 PM | |
| Call or Name: | Gote |
| Message: | I certainly will post interesting VLF-events noticed by me. I check the VLF-condition on a daily basis. |
| Website |
| 03/01/00 02:58:36 PM | |
| Call or Name: | WB6RIJ Bill |
| Message: | (no comment) |
| 03/01/00 01:09:41 AM | |
| Call or Name: | Steve Olney VK2ZTO |
| Message: | G'day Renato,
Have improved my VLF receiving setup with a preamplifier. Still using my CHA antenna. Question: Have you noticed that on some lightning crashes there is a very distinct and definite periodic amplitude versus frequency characteristic? My guess for this effect is that it could be to do with the length of the lightning stroke selecting a fundamental and harmonics in the radiated signal. When I have time I will put some pictures up on my Web Page. On another note I am working on a program which uses the periodic capture of Spectrogram screens to give a signal strength versus time display for selected frequencies. Will let you know if and when I get it working. Regards Steve |
| E-mail Website |
| 02/27/00 02:23:43 PM | |
| Call or Name: | Marco Bruno IK1ODO |
| Message: | Test ... it seems to work. |
| 02/27/00 02:23:28 AM | |
| Call or Name: | Renato ROMERO |
| Message: | Test message on message board.
02:23:30 27/02/2000 local time |
| E-mail Website |
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