Return-Path: Received: from mtain-mj06.r1000.mx.aol.com (mtain-mj06.r1000.mail.aol.com [172.21.164.90]) by air-da03.mail.aol.com (v129.4) with ESMTP id MAILINDA034-86634d6ac7572d; Sun, 27 Feb 2011 16:51:19 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mj06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9796B38000085; Sun, 27 Feb 2011 16:51:18 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PtoVX-0001TX-GY for rs_out_1@blacksheep.org; Sun, 27 Feb 2011 21:50:27 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PtoVW-0001TO-GF for rsgb_lf_group@blacksheep.org; Sun, 27 Feb 2011 21:50:26 +0000 Received: from nm11.bullet.mail.ukl.yahoo.com ([217.146.183.185]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1PtoVW-0002wh-CY for rsgb_lf_group@blacksheep.org; Sun, 27 Feb 2011 21:50:26 +0000 Received: from [217.146.183.217] by nm11.bullet.mail.ukl.yahoo.com with NNFMP; 27 Feb 2011 21:50:20 -0000 Received: from [217.146.183.167] by tm10.bullet.mail.ukl.yahoo.com with NNFMP; 27 Feb 2011 21:50:20 -0000 Received: from [127.0.0.1] by omp1008.mail.ukl.yahoo.com with NNFMP; 27 Feb 2011 21:50:20 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 764753.71486.bm@omp1008.mail.ukl.yahoo.com Received: (qmail 83214 invoked by uid 60001); 27 Feb 2011 21:50:20 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.uk; s=s1024; t=1298843420; bh=dQLNtY5xSBDp09KkLsLxH38/2/t1+8EeIspbTh2FWH0=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=6KQ5OY8JZcxRlpA06FLBFZQMBNCG4cSHI7QA2hnWnQnFSHvaLWJ8MkgQp1woJSosZHfcKEHU4B7hi/xNLhr6kQA4UQyBxjaUTJEPEDlqZXoLthiU+hRtVGEcnIXAaA/w19FBKAatymS4SeBYXFJssd+MZEDIl6o4AVo/8g1gWNE= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=Message-ID:X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=gauTR2lWCNE822uuXx40w2L4U8+TPbmt67go2TYfwoFX+wVLzfUZKG4dkAKYWsvXQn3lJovxHj8kB1TKp8sXfCN0HfijO5zvu1GvQReW6BkvEY5WjOHAvGWp5F6khHymIxhLkV3NYK6s9SGFznKckXpGYkWZY7RUR56kAsPtfP4=; Message-ID: <593715.81193.qm@web28516.mail.ukl.yahoo.com> X-YMail-OSG: WNdHSX4VM1ko_fqyCKXLnB8D.IKNgqYOctmvMgAlqCqGxRQ Kkm1ejh.kU_6AnnCOAt3N.HBgvA0lJPa76ez7aFFLMg1xw5sbMGC5a8w6gR6 e5w.m.ggf2KIUe1KH2UNAmJct6WVUU98eUzskjQNK1rllYQkwGLdG8eEOWXQ vQq6SSUgedffMfO4yaZsIkVw6L6QLFP4Rz.2CU39F5P7OR4YnTB1NpV3akCu i8yBZ1oDfz3XRcm4Ab9qh6EiBUAkW3dUSMUpbM8_mcoLj Received: from [81.97.191.183] by web28516.mail.ukl.yahoo.com via HTTP; Sun, 27 Feb 2011 21:50:20 GMT X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.109.292656 References: <4D68D907.1000005@iup.uni-heidelberg.de> <1298717758.4379.2.camel@gerhard-desktop> <483B525F6C7E42D1B5D226AB3E96611D@White> <4D6978CB.3000205@iup.uni-heidelberg.de> <4D69801B.7050907@iup.uni-heidelberg.de> <279103.46669.qm@web28506.mail.ukl.yahoo.com> <4D6A96A5.70804@iup.uni-heidelberg.de> <292024.46473.qm@web28505.mail.ukl.yahoo.com> <4D6AC0FD.8070204@dsl.pipex.com> Date: Sun, 27 Feb 2011 21:50:20 +0000 (GMT) From: Chris Osborn To: rsgb_lf_group@blacksheep.org In-Reply-To: <4D6AC0FD.8070204@dsl.pipex.com> MIME-Version: 1.0 DomainKey-Status: good (testing) Subject: Re: VLF: G3XIZ on 8970 Hz Content-Type: multipart/alternative; boundary="0-1914926194-1298843420=:81193" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,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-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m286.2 ; domain : yahoo.co.uk DKIM : pass x-aol-sid: 3039400c89ac4d6ac7554a4a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --0-1914926194-1298843420=:81193 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hello Chris, Thanks for looking / listening. I QRT'd at 21.10 after about 4 and a half hours. I've finished the MK II loading coil winding and hope to have it working= by next=20 weekend. Hopefully you'll pick me up then. 73 Chris XIZ ________________________________ From: Chris Dillon To: rsgb_lf_group@blacksheep.org Sent: Sun, 27 February, 2011 21:24:13 Subject: Re: VLF: G3XIZ on 8970 Hz Hi Chris - been listening since about 6.30 but unfortunately nothing = at all=20 from you so far tonight. 73 Chris G3WCD On 27/02/2011 18:45, Chris Osborn wrote:=20 Hello Stefan, > >Thanks for the good wishes and advice. >Eddie G3ZJO (about 50 km) is looking for my signal. > >The aerial current is about 0.15 A and the TX power about 100 = watts=20 >RF. > >I have built an off air frequency standard which is locked to = =20 >Droitwich (198 kHz) >It has a 10 kHz output and maybe I can use that in future for = more=20 >precise frequency generation. > >I am presently making a more efficient loading coil which shoul= d be=20 >ready soon. > >73 Chris G3XIZ > > > > > ________________________________ From: Stefan Sch=E4fer >To: rsgb_lf_group@blacksheep.org >Sent: Sun, 27 February, 2011 18:23:33 >Subject: Re: VLF: G3XIZ on 8970 Hz > > Hello Chris,=20 > >I wish you good luck! > >What will be your antenna current and what is the current max= imum TX =20 >power?=20 > > >Do you have enough RX stations in a radius of some 100 km? > >If you want to do a test in transmitting a 24 hours accurate = =20 >carrier, i could set up a "60000" window at your frequency.= But it=20 >only makes sense if your TX is locked to a MSK=20 >transmitter (e.g. GBZ) or GPS. A OCXO or so is dr= ifting=20 >much to strong for a 47 uHz window. > >I see a real chance to see a trace of you if you send a 24 ho= ur =20 >carrier, locked. > >73, Stefan/DK7FC > > > >Am 27.02.2011 17:14, schrieb Chris Osborn:=20 >Very well done. >> >>I have been trying for the past 2 weekends to launch = my=20 >>balloons or kite aerial but the weather >>has been unsuitable. >> >>Inspired by ops using just their home aerials I shall = give my=20 >>40m end fed inverted 'L' another try. >> >>I shall transmit a constant carrier on >> >>8.976 661 7 kHz >> >>for the next few hours in the hope that someone will = pick up=20 >>my signals. >> >>At some point I could try a longer period maybe over = night. >> >>73 Chris G3XIZ >> >> >> >> ________________________________ From: Stefan Sch=E4fer >>To: rsgb_lf_group@blacksheep.org >>Sent: Sat, 26 February, 2011 22:35:07 >>Subject: Re: VLF: OE5ODL,OE3GHB and DF6NM on 8970= Hz >> >>...now Markus appears at 17 dB SNR in my "DFCW-60000= "=20 >>window, exactly at 8970.0020 Hz, see=20 >>http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html >> >>It is remarkable that all the 3 stations use their = home=20 >>antenna, no kites or balloons, TX power below 300 W!= This=20 >>shows what others could do on VL= F as=20 >>well. My distance to OE3GHB is 590 km! >> >>Also it is interesting that 3 QSOs could easily take = place=20 >>in a bandwidth of 10 mHz :-) >> >>It's fun and fascinating, thus not useless :-) >> >>73, Stefan/DK7FC >> >> >>Am 26.02.2011 23:03, schrieb Stefan Sch=E4fer: >>> VLF, >>>=20 >>> Capture OE5ODL (8970.005 Hz, until 14 UTC), OE3GHB= (8969.98=20 >>>Hz), DF6NM (from 13 UTC, first drifting, then lock= to =20 >>>8970.002 Hz) in 424 uHz >>>=20 >>> 73, Stefan/DK7FC >>>=20 >> >> >> > =20 --0-1914926194-1298843420=:81193 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Hello Chris,

Thanks for looking / listening.
I QRT'd= at 21.10 after about 4 and a half hours.

I've finished the MK II= loading coil winding and hope to have it working by next weekend.
Hope= fully you'll pick me up then.

73 Chris XIZ

<= font face=3D"Tahoma" size=3D"2">
From: Chris Dillon <c.r.dillon@dsl.pipex.com><= br>To: rsgb_lf_group@blac= ksheep.org
Sent: Sun,= 27 February, 2011 21:24:13
Subje= ct: Re: VLF: G3XIZ on 8970 Hz

=20 =20 =20 Hi Chris - been listening since about 6.30 but unfortunately nothing at all from you so far tonight.

73 Chris G3WCD

On 27/02/2011 18:45, Chris Osborn wrote:
=20
Hello Stefan,

Thanks for the good wishes and advice.
Eddie G3ZJO  (about 50 km) is looking for my signal.

The aerial current is about 0.15 A and the TX power about 100 watts RF.

I have built an off air frequency standard which is locked to Droitwich (198 kHz)
It has a 10 kHz output and maybe I can use that in future for more precise frequency generation.

I am presently making a more efficient loading coil which should be ready soon.

73 Chris G3XIZ


From: Stefan Sch=E4fer <schaefer@iup.uni-hei= delberg.de>
To: rsgb_lf_group@blacksheep.org
Sent: Sun, 27 February, 2011 18:23:33
Subject: Re: VLF: G3XIZ on 8970 Hz

Hello Chris,

I wish you good luck!

What will be your antenna current and what is the current maximum TX power?

Do you have enough RX stations in a radius of some 100 km?

If you want to do a test in transmitting a 24 hours accurate carrier, i could set up a "60000" window at your frequency. But it only makes sense if your TX is locked to a MSK transmitter (e.g. GBZ) or GPS. A OCXO or so is drifting much to strong for a 47 uHz window.

I see a real chance to see a trace of you if you send a 24 hour carrier, locked.

73, Stefan/DK7FC



Am 27.02.2011 17:14, schrieb Chris Osborn:
Very well done.

I have been trying for the past 2 weekends to launch my balloons or kite aerial but the weather
has been unsuitable.

Inspired by ops using just their home aerials I shall give my 40m end fed inverted 'L' another try.

I shall transmit a constant carrier on

8.976 661 7 kHz

for the next few hours in the hope that someone will pick up my signals.

At some point I could try a longer period maybe over night.

73 Chris G3XIZ

From: Stefan Sch=E4fer <schaefer@iu= p.uni-heidelberg.de>
To: rsgb_lf_group@blacksheep.org<= br> Sent: Sat, 26 February, 2011 22:35:07
Subject: Re: VLF: OE5ODL,OE3GHB and DF6NM on 8970 Hz

...now Markus appears at 17 dB SNR in my "DFCW-60000" window, exactly at 8970.0020 Hz, see http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.h= tml

It is remarkable that all the 3 stations use their home antenna, no kites or balloons, TX power below 300 W! This shows what others could do on VLF as well. My distance to OE3GHB is 590 km!
Also it is interesting that 3 QSOs could easily take place in a bandwidth of 10 mHz :-)

It's fun and fascinating, thus not useless :-)

73, Stefan/DK7FC


Am 26.02.2011 23:03, schrieb Stefan Sch=E4fer:
> VLF,
>
> Capture OE5ODL (8970.005 Hz, until 14 UTC), OE3GHB (8969.98 Hz), DF6NM (from 13 UTC, first drifting, then lock to 8970.002 Hz) in 424 uHz
>
> 73, Stefan/DK7FC
>





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