Return-Path: Received: from mtain-ma11.r1000.mx.aol.com (mtain-ma11.r1000.mx.aol.com [172.29.96.19]) by air-db04.mail.aol.com (v129.4) with ESMTP id MAILINDB041-85f04c55cf8a22b; Sun, 01 Aug 2010 15:48:26 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-ma11.r1000.mx.aol.com (Internet Inbound) with ESMTP id E0CCF3800011B; Sun, 1 Aug 2010 15:48:24 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OfeVI-00064M-MJ for rs_out_1@blacksheep.org; Sun, 01 Aug 2010 20:47:24 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OfeVI-00064D-3O for rsgb_lf_group@blacksheep.org; Sun, 01 Aug 2010 20:47:24 +0100 Received: from smtp07.online.nl ([194.134.42.52]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OfeVG-00015Z-N5 for rsgb_lf_group@blacksheep.org; Sun, 01 Aug 2010 20:47:24 +0100 Received: from smtp07.online.nl (localhost [127.0.0.1]) by smtp07.online.nl (Postfix) with ESMTP id A24B998105 for ; Sun, 1 Aug 2010 21:47:16 +0200 (CEST) Received: from pa3fnytrqxpddu (s5593e077.adsl.wanadoo.nl [85.147.224.119]) by smtp07.online.nl (Postfix) with SMTP for ; Sun, 1 Aug 2010 21:47:16 +0200 (CEST) From: To: Date: Sun, 1 Aug 2010 21:47:16 +0200 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) In-Reply-To: <4C529C6B.9070908@iup.uni-heidelberg.de> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Importance: Normal X-Online-Scanned: by Cloudmark authority (on smtp07.online.nl) X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55 Subject: LF: RE: DK7FC's 6th VLF kite experiment Content-Type: multipart/alternative; boundary="----=_NextPart_000_0014_01CB31C3.1BCFD460" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.7 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_20_30, HTML_FONTCOLOR_BLUE,HTML_MESSAGE,NO_REAL_NAME 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: 3039ac1d60134c55cf880cf4 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0014_01CB31C3.1BCFD460 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Stefan, thanks for the experiment,unfortunataly nothing seen on the screen, 73 Victor PA3FNY -----Oorspronkelijk bericht----- Van: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]Namens Stefan Sch=E4fer Verzonden: vrijdag 30 juli 2010 11:34 Aan: rsgb_lf_group@blacksheep.org; Renato Romero; Paul Nicholson Onderwerp: VLF: DK7FC's 6th VLF kite experiment Dear LF/VLF group, It took a long time to get a proper wind forecast in a time sector= where i can do a kite experiment. Also it took a long time to get the special permission for the new kite antenna. But now, if the wind will be enough and if there is no rain on Sunda= y, the 1. August, i will make a new kite experiment. The first time i will try to use a 200m vertical antenna and 600W TX power. The L of the loading coil will not be reduced in this experimen= t and so i will transmit at arround 6,5 kHz, the 46 km or 47 km band! This= is since i do not yet know the actual antenna C (EZNEC says 972 pF). The= ERP will be arround 16 mW (first estimation). This is about 10 dB more tha= n in the first and successful 2nd experiment on March, 15th. Also it is sai= d that propagation on 6 kHz is even better than on 9 kHz! The first time it= could be realistic to reach the 1A antenna current mark! Since some weeks i have set up a grabber in DFCW-120 mode (just to= cover a broader frequency range) at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html= If you want to catch my signal, you can look there where i am actually transmitting. After some resonating tests i will transmit in good old DFCW-600, so it is the best you use a 3...5 mHz FFT and about 1 minute= per pixel. Starting time is 8 UTC, maybe some time later since it is the first experiment with such an antenna! I still do not know if big problems= will occur but i am a DREAMER (remembering the 3rd experiment: http://abelian.org/vlf/ss100321/ ). But don't be disappointed if it wo= uld be failed. Actually it cannot fail since there will be found improvements= for the next test! TX QTH is as usual in JN49IS, 49.77647N 8.699525. The summer time and maybe day time may be not the best but it is an important test for the winther period. Maybe we will see some surprise= s depending propagation on arround 6 kHz. And it will be the first time= that an amateur reaches the far field and hopefully more than 1 Lambda on= such a low frequency :-) Any RX reports and ideas/hints (before and after the test) are very appreciated! Best 73, Stefan/DK7FC *excited* ------=_NextPart_000_0014_01CB31C3.1BCFD460 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello=20 Stefan,
 
thanks=20 for the experiment,unfortunataly nothing seen on the screen,
 
73
 
Victor
PA3FNY
-----Oorspronkelijk bericht-----
Van:= =20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]Namens Stefan=20 Sch=E4fer
Verzonden: vrijdag 30 juli 2010 11:34
Aan:= =20 rsgb_lf_group@blacksheep.org; Renato Romero; Paul=20 Nicholson
Onderwerp: VLF: DK7FC's 6th VLF kite=20 experiment

Dear LF/VLF group,

It took a= long time=20 to get a proper wind forecast in a time sector where i can do a kite= =20 experiment. Also it took a long time to get the special permission= for the new=20 kite antenna.

But now, if the wind will be enough and if= there is no=20 rain on Sunday, the 1. August, i will make a new kite=20 experiment.

The first time i will try to use a 200m vertic= al antenna=20 and 600W TX power. The L of the loading coil will not be reduced= in this=20 experiment and so i will transmit at arround 6,5 kHz, the 46 km= or 47 km=20 band! This is since i do not yet know the actual antenna C (EZNE= C says 972=20 pF). The ERP will be arround 16 mW (first estimation). This= is about 10=20 dB more than in the first and successful 2nd experiment on March, 15= th. Also=20 it is said that propagation on 6 kHz is even better than on 9 kHz!= The first=20 time it could be realistic to reach the 1A antenna current=20 mark!

Since some weeks i have set up a grabber in DFCW-12= 0 mode=20 (just to cover a broader frequency range) at http://www.iup.uni-heidelberg.de/schaefer_vl= f/DK7FC_VLF_Grabber2.html=20 If you want to catch my signal, you can look there where i am actual= ly=20 transmitting. After some resonating tests i will transmit in good= old=20 DFCW-600, so it is the best you use a 3...5 mHz FFT and about 1= minute per=20 pixel.

Starting time is 8 UTC, maybe some time later= since it is=20 the first experiment with such an antenna! I still do not know if bi= g problems=20 will occur but i am a DREAMER (remembering the 3rd experiment= : http://abelian.org/vlf/ss100321/=20 ). But don't be disappointed if it would be failed. Actually it cann= ot fail=20 since there will be found improvements for the next test!
TX QTH= is as=20 usual in JN49IS, 49.77647N 8.699525.

The summer time and mayb= e day time=20 may be not the best but it is an important test for the winther peri= od. Maybe=20 we will see some surprises depending propagation on arround 6 kHz.= And it will=20 be the first time that an amateur reaches the far field and hopefull= y more=20 than 1 Lambda on such a low frequency :-)

Any RX reports and= =20 ideas/hints (before and after the test) are very appreciated!
Best 73,=20 Stefan/DK7FC *excited*
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