Return-Path: Received: from mtain-db04.r1000.mx.aol.com (mtain-db04.r1000.mx.aol.com [172.29.64.88]) by air-di02.mail.aol.com (v129.4) with ESMTP id MAILINDI023-eabc4c0aaa94260; Sat, 05 Jun 2010 15:50:44 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-db04.r1000.mx.aol.com (Internet Inbound) with ESMTP id D11D4380000BE; Sat, 5 Jun 2010 15:50:41 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OKzNU-0008S7-QC for rs_out_1@blacksheep.org; Sat, 05 Jun 2010 20:49:56 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OKzNU-0008Ry-8C for rsgb_lf_group@blacksheep.org; Sat, 05 Jun 2010 20:49:56 +0100 Received: from imr-db03.mx.aol.com ([205.188.91.97]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OKzNS-00023n-14 for rsgb_lf_group@blacksheep.org; Sat, 05 Jun 2010 20:49:56 +0100 Received: from mtaout-mb03.r1000.mx.aol.com (mtaout-mb03.r1000.mx.aol.com [172.29.41.67]) by imr-db03.mx.aol.com (8.14.1/8.14.1) with ESMTP id o55JnYkh024610 for ; Sat, 5 Jun 2010 15:49:34 -0400 Received: from Black (g229230005.adsl.alicedsl.de [92.229.230.5]) by mtaout-mb03.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id 4A55EE0000A8 for ; Sat, 5 Jun 2010 15:49:34 -0400 (EDT) Message-ID: <69470DB673D14A0E8B219ACBB17751FF@Black> From: "Markus Vester" To: References: <004801cb04d6$e9740b80$0401a8c0@xphd97xgq27nyf> In-Reply-To: <004801cb04d6$e9740b80$0401a8c0@xphd97xgq27nyf> Date: Sat, 5 Jun 2010 21:49:00 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16669 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: Re: 9 kcs Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01CB04F8.E80E1A70" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MISSING_OUTLOOK_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: 3039ac1d40584c0aaa91586f X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0010_01CB04F8.E80E1A70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dear Mal, well I would like to persuade you into getting a NOV and setting up to= transmit on 9 kHz. If I understood the info on your antenna system correctly, you have a= total of 600 m of wire in the air, at a maximum height of 30 m. With= a capacitance of 3 nF, and assuming a safe operating voltage of 20 kV= , you could bring a current of 3.3 A to probably 25 m effective height= . Depending on your ground system, you might need to put in about a ki= lowatt for this.=20 You would then radiate approximately 10 mW, slightly more than what St= efan can currently achieve with his 100 m kite. At a time of low QRN,= such a signal would most likely appear immediately on the German grab= bers, and would probably be detectable across Europe. I also believe= that there would be quite some interest in crossband QSO's (9 / 137= kHz), which would give less equipped stations (like myself) a chance= to participate in the dreamers' DX. Think about it - I'm sure you won't be wasting your time ;-) Best 73, Markus (DF6NM) ----- Original Message -----=20 From: mal hamilton=20 To: rsgb=20 Sent: Saturday, June 05, 2010 7:45 PM Subject: LF: 9 kcs What is happening on 9 kcs, some seem to be aiming for earth induced= signals downward penetration with earth rods etc while some are tryin= g elevated antennas for long haul.=20 I am interested in elevated antennas long haul experiments but I thi= nk I am wasting my time. The chance of me hearing some of these signals is non existant bar= a Miracle. Information is also scarce in the UK especially about rece= iving capabilities, what is being heard especially alpha signals, stre= ngth, audibility and general band noise. g3kev ------=_NextPart_000_0010_01CB04F8.E80E1A70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dear Mal,
 
well I would like to persuade you int= o getting a=20 NOV and setting up to transmit on 9 kHz.
 
If I understood the info on your ante= nna system=20 correctly, you have a total of 600 m of wire in the air, at a maximum= height=20 of 30 m. With a capacitance of 3 nF, and assuming a safe=20 operating voltage of 20 kV, you could bring a current= of 3.3=20 A to probably 25 m effective height. Depending on your groun= d system,=20 you might need to put in about a kilowatt for this.
 
You would then radiate appr= oximately 10=20 mW, slightly more than what Stefan can currently achieve with his 100= m kite. At=20 a time of low QRN, such a signal would most likely appear im= mediately=20 on the German grabbers, and would probably be detectable across Europe= . I also=20 believe that there would be quite some interest in crossband= QSO's=20 (9 / 137 kHz), which would give less equipped stations (like= myself) a=20 chance to participate in the dreamers' DX.
 
Think about it - I'm sure you won't= be wasting=20 your time ;-)
 
Best 73,
Markus (DF6NM)
 
----- Original Message -----
From:=20 mal=20 hamilton
To: rsgb
Sent: Saturday, June 05, 2010= 7:45=20 PM
Subject: LF: 9 kcs
=
What is happening on 9 kcs, some se= em to be=20 aiming for earth induced signals downward penetration with earth rod= s etc=20 while some are trying elevated antennas for long haul.
I am interested in elevated antenna= s long=20 haul experiments but I think I am wasting my time.
The chance of me hearing some of th= ese signals is=20 non existant bar a Miracle. Information is also scarce in the UK esp= ecially=20 about receiving capabilities, what is being heard especially alpha= signals,=20 strength, audibility and general band noise.
 
g3kev
 
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