Return-Path: Received: from mtain-di02.r1000.mx.aol.com (mtain-di02.r1000.mx.aol.com [172.29.64.6]) by air-de01.mail.aol.com (v129.4) with ESMTP id MAILINDE012-5ea34d8b468814a; Thu, 24 Mar 2011 09:26:32 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-di02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 1C49B38000118; Thu, 24 Mar 2011 09:26:26 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Q2kX9-0008Os-Bb for rs_out_1@blacksheep.org; Thu, 24 Mar 2011 13:25:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Q2kX8-0008Oj-KM for rsgb_lf_group@blacksheep.org; Thu, 24 Mar 2011 13:25:02 +0000 Received: from blu0-omc1-s28.blu0.hotmail.com ([65.55.116.39]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Q2kX7-0006jU-FX for rsgb_lf_group@blacksheep.org; Thu, 24 Mar 2011 13:25:02 +0000 Received: from BLU146-W18 ([65.55.116.7]) by blu0-omc1-s28.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 24 Mar 2011 06:24:54 -0700 Message-ID: X-Originating-IP: [138.32.32.166] From: Laurence KL7UK To: Date: Thu, 24 Mar 2011 05:24:54 -0800 Importance: Normal In-Reply-To: <8CDB82718FF0CEC-B4C-BB65@webmail-d038.sysops.aol.com> References: ,<8CDB82718FF0CEC-B4C-BB65@webmail-d038.sysops.aol.com> MIME-Version: 1.0 X-OriginalArrivalTime: 24 Mar 2011 13:24:54.0922 (UTC) FILETIME=[DD1886A0:01CBEA26] X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Content-Type: multipart/alternative; boundary="_4826e4ee-708f-4654-aa1e-ce43c2f609dc_" Subject: RE: LF: Wasilla Alaska VLF - offline X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=FORGED_HOTMAIL_RCVD, HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d40064d8b46816162 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --_4826e4ee-708f-4654-aa1e-ce43c2f609dc_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Stefan, Markus and all =3D thanks - Ill do a 60000 window and cut out the= 2nd fft's and Im sure that will help. Never thought about the second wind= ow loading till it hits you in the face..the 100% CPU dial is a sure sign= of Im doing it wrong :-) =20 Ive tried all sorts of probes and omnis but dissapointed overall in the re= sults s/n wise - . So it was a fortunate I can get the loop out far enough= and in a position where I can maximize Eu and still null a lot of the rub= bish. Ill do some more playing in the Spring.. =20 The housing there in open frame ranch style which affords zero attenuation= compared with brick/rebar style contruction giving "some" Faraday cage af= fects, so Im onto a loser there.. If I was resident in Alaska I would do remote power and link, but even tha= t give the weather and wildlife is problematic during the window of opport= unity. =20 The link to Scott looks interesting but as he and I have found out the pa= th, even over water and comparatively "short" can be very very cranky at= LF, and his view of VLF and the stations he can receive is very very diff= erent from mine. Got to just love these Geomag events and heavy Proton ev= ents. If I see any Proton event showing up I tend to close the radio room= door, put on my skiis and go for a long long walk.... =20 Laurence KL 1X KL7 UK =20 To: rsgb_lf_group@blacksheep.org Date: Thu, 24 Mar 2011 06:40:59 -0400 From: markusvester@aol.com Subject: Re: LF: Wasilla Alaska VLF - offline Hi Laurence, =20 if I had only one to choose from, I'd definitely opt for the slowest "6000= 0" window at 47 uHz. Depending on antenna orientation, this would definite= ly give Scott a chance, or perhaps one of us over here. Would an onnidirec= tional E-field work as well for you as the RX loops? =20 Running the second FFT for the Alphas nearly doubles the CPU load, so you= may want to skip that. =20 Thanks for the great work! =20 Best 73,=20 Markus -----Urspr=FCngliche Mitteilung-----=20 Von: Laurence KL7UK An: rsgb_lf_group@blacksheep.org Verschickt: Mi., 23. Mrz. 2011, 15:34 Thema: RE: LF: Wasilla Alaska VLF - offline VLF pre Eu dawn signals are way down from mid winter Stefan, but that sign= ature increase on DHO38 signal between 0500 and 0700Z is still there. Look= s to me like a mid winter opportunity only on this 2 x Auroral oval path= at this range, but I could be mistaken. The loop is tensioned from moveme= nt by an ice screw in the lake and given the increasing temps Im sure it= will come dislodged sooner than later - the other side is tensioned to a= Birch tree so I dont think it will move. If Scott warms up his #2 Ill hav= e to get someone to turn the array as hes in a Cosine null at the moment. =20 Ill take a look at the processor and see what gives but welcome any direct= ion on speeds/fft longterm so I can leave one or two screens up longer ter= m without frying the proc..=20 =20 Not sure if Ill be in the same location by next winter :-(( Your going to= have to work out how to get an antennae up and stable in the latter part= of the of the Eu night for this path to work me thinks :-))) =20 Cheers Laurence KL7UK, Wasilla Alaska remote op'd from /5 Oklahoma =20 Date: Wed, 23 Mar 2011 02:24:25 +0100 From: schaefer@iup.uni-heidelberg.de To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Wasilla Alaska VLF - offline Hello Laurence,=20 No hope for the end of the season? Maybe you are right, unfortunately. But= you'll come back in the next season, isn't it? :-) Or maybe just reducing= to wideband and 6000 or so? A pity... But thanks for the service and the intersting location to watch and sharin= g the optimism!! Maybe we'll see what can be done in Greenland, that's a next step into you= r direction, about... 73 and good luck,=20 Stefan/ EI/DK7FC =20 =20 =3D =3D --_4826e4ee-708f-4654-aa1e-ce43c2f609dc_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Stefan, Markus and all =3D thanks - Ill do a 60000 window and cut out the= 2nd fft's and Im sure that will help. Never thought about the second wind= ow loading till it hits you in the face..the 100% CPU dial is a sure sign= of Im doing it wrong :-)
 
Ive tried all sorts of probes and omnis but dissapointed overall in the re= sults s/n wise - . So it was a fortunate I can get the loop out= far enough and in a position where I can maximize Eu and still null a lot= of the rubbish. Ill do some more playing in the Spring..
 
The housing there in open frame ranch style which affords zero attenuation= compared with brick/rebar style contruction giving "some" Faraday ca= ge affects, so Im onto a loser there..

If I was resident in Alaska I would do remote power and link, but even tha= t give the weather and wildlife is problematic during the window of opport= unity.
 
 The link to Scott looks interesting but as he and I have found out= the path, even over water and comparatively "short" can be very very= cranky at LF, and his view of VLF and the stations he can receive&nb= sp;is very very different from mine.  Got to just love these Geomag= events and heavy Proton events. If I see any Proton event showing up I te= nd to close the radio room door, put on my skiis and go for a long long wa= lk....
 
Laurence KL 1X  KL7 UK
 
To: rsgb_lf_group@blacksheep.org
Date: Thu, 24 Mar 2011 06:40:59 -0400<= BR>From: markusvester@aol.com
Subject: Re: LF: Wasilla Alaska VLF - off= line

Hi Laurence,
 
if I had only one to choose from, I'd definitely opt for th= e slowest "60000" window at 47 uHz. Depending on antenna orientation, this= would definitely give Scott a chance, or perhaps one of us over here= . Would an onnidirectional E-field work as well for you as the RX loo= ps?
 
Running the second FFT for the Alphas nearly doubles the CPU load,&nb= sp;so you may want to skip that.
 
Thanks for the great work!
 
Best 73, 
Markus

-----Urspr=FCngliche Mitteilung-----
Von: Laurence KL7UK <hellozer= ohellozero@hotmail.com>
An: rsgb_lf_group@blacksheep.org
Verschic= kt: Mi., 23. Mrz. 2011, 15:34
Thema: RE: LF: Wasilla Alaska VLF - offli= ne

VLF pre Eu dawn signals are way down from mid winter Stefan, but that sign= ature increase on DHO38 signal between 0500 and 0700Z is still= there. Looks to me like a mid winter opportunity only on this 2 x Au= roral oval path at this range, but I could be mistaken. The loop is tensio= ned from movement by an ice screw in the lake and given the increasin= g temps Im sure it will come dislodged sooner than later - the other side= is tensioned to a Birch tree so I dont think it will move. If Scott= warms up his #2 Ill have to get someone to turn the array as hes in a&nbs= p;Cosine null at the moment.
 
Ill take a look at the processor= and see what gives but welcome any direction on speeds/fft longterm= so I can leave one or two screens up longer term without frying the proc.= .
 
Not sure if Ill be in the same location by next winter :-(= ( Your going to have to work out how to get an antennae up and stable in= the latter part of the of the Eu night for this path to work me= thinks :-)))
 
Cheers
Laurence KL7UK, Wasilla Alaska  = remote op'd from /5 Oklahoma
 
Date: Wed, 23 Mar 2011 02:24:25 +0100
From: schaefer@iup.uni-heidelberg.de
To: rsgb_lf_group@blacksheep.org<= BR>Subject: Re: LF: Wasilla Alaska VLF - offline

Hello Laurence,
No hope for the end of the season? Maybe you are right, unfortunatel= y. But you'll come back in the next season, isn't it? :-) Or maybe just re= ducing to wideband and 6000 or so? A pity...
But thanks for the service= and the intersting location to watch and sharing the optimism!!
Maybe= we'll see what can be done in Greenland, that's a next step into your dir= ection, about...

73 and good luck,

Stefan/ EI/DK7FC
 
 
=3D
= =3D --_4826e4ee-708f-4654-aa1e-ce43c2f609dc_--