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[195.171.43.25]) by mx.google.com with ESMTP id c5si5007462wja.59.2013.11.17.09.28.02 for ; Sun, 17 Nov 2013 09:28:03 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Vi5d5-00062t-F4 for rs_out_1@blacksheep.org; Sun, 17 Nov 2013 16:55:23 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Vi5d4-00062k-O0 for rsgb_lf_group@blacksheep.org; Sun, 17 Nov 2013 16:55:22 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1Vi5d1-0001oW-P6 for rsgb_lf_group@blacksheep.org; Sun, 17 Nov 2013 16:55:21 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id rAHGtJmv028242 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 17 Nov 2013 17:55:19 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id rAHGtIhc026497 for ; Sun, 17 Nov 2013 17:55:18 +0100 Message-ID: <5288F4F2.8050203@iup.uni-heidelberg.de> Date: Sun, 17 Nov 2013 17:55:14 +0100 From: =?windows-1252?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: ,,<5283668A.8050001@iup.uni-heidelberg.de> In-Reply-To: X-Spam-Score: -2.8 (--) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hi Laurence, If i would have such a airplane i would visit you to help to set up the antenna ;-) But you seem to have a son who can do the job, if you can't ;-) It is interesting in any way. First you will get very good near field results, out to some km. Between 5...10 km it gets harder then. Who is the next station who could and would set uo a grabber for you? Actually i should emigrate to canada, sometimes i think there are better places in the world than Heidelberg. I still have some years for the decision i hope :-) Will you actually start to build such an antenna? Must be a great work, out in the nature there! [...] Content analysis details: (-2.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [129.206.210.211 listed in list.dnswl.org] -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: c3a0d80882a29f438f57a981c7a65fcd Subject: Re: LF: VLF KL7L 8.97 kHz Content-Type: multipart/alternative; boundary="------------030002040600050404020309" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=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 Status: O X-Status: X-Keywords: X-UID: 3156 This is a multi-part message in MIME format. --------------030002040600050404020309 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id rAHGtJmv028242 Hi Laurence, If i would have such a airplane i would visit you to help to set up the=20 antenna ;-) But you seem to have a son who can do the job, if you can't ;= -) It is interesting in any way. First you will get very good near field results, out to some km. Between=20 5...10 km it gets harder then. Who is the next station who could and=20 would set uo a grabber for you? Actually i should emigrate to canada, sometimes i think there are better=20 places in the world than Heidelberg. I still have some years for the=20 decision i hope :-) Will you actually start to build such an antenna? Must be a great work,=20 out in the nature there! 73, Stefan/DK7FC Am 16.11.2013 00:57, schrieb Laurence KL7 L: > thanks for the response Stefan - > > Yes I understand it must be difficult to get a clear air location ! I=20 > live just off the end of a runway here (at the beginning of the videos= ) > > http://www.youtube.com/watch?v=3DO9x7IWI3A6E > http://www.youtube.com/watch?v=3D-2kXezEIIQo > > So no radio towers or balloons or kites for me - I do have a=20 > possibility to shove a wire out around the point of land on the lake=20 > so perhaps Ill do that. > Some years ago (Ok some 35 years ago) I used to be a very small cog=20 > in in high powered VLF transmissions from Antarctica running 100's of=20 > Kw at a few KHz -and the memories of my knives, forks and kitchen=20 > utensils humming at me whilst eating me ham and eggs whilst the Tx was=20 > keyed are fond memories. Sadly that Base (Siple) closed the year of=20 > so after I left the continent. > > Conditions over the (North) pole were improving but Ive just got=20 > another k=3D4 or more warning so we will see what happens tonight. > Laurence KL7 L et al > > > Date: Wed, 13 Nov 2013 12:46:18 +0100 > > From: Stefan.Schaefer@iup.uni-heidelberg.de > > To: rsgb_lf_group@blacksheep.org > > Subject: Re: LF: VLF KL7L 8.97 kHz > > > > Hi Laurence, > > > > They installed a 2.5 MW wind power plant exactly where i've done my > > experiments in 2010/11. Obviously it is a good QTH when you need wind > > :-) So i cannot use that QTH any more. I would need to find a new one. > > > > I don't want to say that the VLF times are over for me, maybe there=20 > will > > come another season sometime. A lot can be done! :-) > > > > What about your location in AK? Is there no chance that YOU begin to = do > > some TX experiments, by using an "earth antenna" (uuuh, some exciteme= nt > > grows in me when thinking back)? You should have the place to install= a > > very long one! You just need some wire, maybe 1...2mm diameter and so= me > > 100m long. A dipole would be interesting. Maybe you can use it for=20 > other > > bands as well! If i would live close to a forest, a lonely forest (he= re > > they seem to clean it and cut some trees here and there to sell them > > periodically!), i would have such an antenna and i would add 100m=20 > pieces > > to the ends from time to time :-) > > > > With 700m wire and 250 W RF power i made 45km in DFCW-600. So if the > > dipole ends are close to your home QTH (actually you can use a simple > > long wire, not a dipole, then you will need just one /p ground made o= f > > earth rods), then you can run 1 or 2 kW (or 3 :-) ) and your home ear= th > > system is the first end of the radiator. 2 kW against 250W is +12 dB. > > Since you are not limited in time (like me, when beeing /p with that > > small generator), people can try in "DFCW-60000" or 47 uHz! Another 2= 0 > > dB! :-) > > And if you use a 7000m wire, is it then 10x the loop area? Would=20 > that be > > another 20 dB? :-) > > > > Maybe you can gain VE7BDQ or VE7TIL (you remember?) and some other > > stations in a range below 1000 km for first tests! :-) > > > > BTW without the need for a loading coil of several 100 mH there is no > > sound that nerves the XYL so it's very friendly to all :-) > > > > Give it a try! +100m each week! > > > > And keep us informed about the progress! > > > > 73, Stefan/DK7FC > > > > > > > > Am 13.11.2013 06:14, schrieb Laurence KL7 L: > > > > > > > > >> > > >> > > >> > > >> > > >> Subject: VLF DK7FC ? > > >> > > >> Stefan =96 is there any (any?) chance we can persuade you to goto=20 > your favorite field location and shove up the Kite again over the=20 > winter period for another run at VLF over the Pole =96 Ive improved my=20 > s/n here down in the lower reaches and you never know? > > >> > > >> Thanks > > >> Long haul up here at the moment is just awful =96 pretty auroras=20 > and snow=85. > > >> Laurence (and others!) kl7l > > >> > > >> > > --------------030002040600050404020309 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id rAHGtJmv028242 Hi Laurence,

If i would have such a airplane i would visit you to help to set up the antenna ;-) But you seem to have a son who can do the job, if you can't ;-)
It is interesting in any way.
First you will get very good near field results, out to some km. Between 5...10 km it gets harder then. Who is the next station who could and would set uo a grabber for you?
Actually i should emigrate to canada, sometimes i think there are better places in the world than Heidelberg. I still have some years for the decision i hope :-)
Will you actually start to build such an antenna? Must be a great work, out in the nature there!

73, Stefan/DK7FC



Am 16.11.2013 00:57, schrieb Laurence KL7 L:
thanks for the response Stefan -
=A0
Yes I understand it must be difficult to get a clear air location !=A0 I live=A0just off the end of=A0 a runway here (at the beginning of the vide= os)

http://www.youtube= .com/watch?v=3DO9x7IWI3A6E
http://www.youtube= .com/watch?v=3D-2kXezEIIQo
=A0
So no radio towers or balloons or kites for me -=A0 I do have a possibility to shove a wire out around the point of land on the lake so perhaps Ill do that.
=A0
Some years ago (Ok some 35 years ago) I used to be a very small cog in=A0in high powered VLF transmissions from Antarctica running 100's of Kw=A0 at a few KHz=A0-and the memories of my knives,=A0f= orks and kitchen utensils humming at me=A0whilst eating me ham and eggs whilst the Tx was keyed=A0are fond memories.=A0Sadly=A0that Base=A0 (Siple) clos= ed the year of so after I left=A0the continent.
=A0
Conditions over the=A0 (North) pole were improving but Ive just got another=A0k=3D4 or more warning so we will see what happens tonight.
=A0
Laurence KL7 L et al
=A0
> Date: Wed, 13 Nov 2013 12:46:18 +0100
> From: Stefan.Schaefer@iup.uni-heidelberg.de > To: rsgb_lf_group@blacksheep.org
> Subject: Re: LF: VLF KL7L 8.97 kHz
>
> Hi Laurence,
>
> They installed a 2.5 MW wind power plant exactly where i've done my
> experiments in 2010/11. Obviously it is a good QTH when you need wind
> :-) So i cannot use that QTH any more. I would need to find a new one.
>
> I don't want to say that the VLF times are over for me, maybe there will
> come another season sometime. A lot can be done! :-)
>
> What about your location in AK? Is there no chance that YOU begin to do
> some TX experiments, by using an "earth antenna" (uuuh, some excitement
> grows in me when thinking back)? You should have the place to install a
> very long one! You just need some wire, maybe 1...2mm diameter and some
> 100m long. A dipole would be interesting. Maybe you can use it for other
> bands as well! If i would live close to a forest, a lonely forest (here
> they seem to clean it and cut some trees here and there to sell them
> periodically!), i would have such an antenna and i would add 100m pieces
> to the ends from time to time :-)
>
> With 700m wire and 250 W RF power i made 45km in DFCW-600. So if the
> dipole ends are close to your home QTH (actually you can use a simple
> long wire, not a dipole, then you will need just one /p ground made of
> earth rods), then you can run 1 or 2 kW (or 3 :-) ) and your home earth
> system is the first end of the radiator. 2 kW against 250W is +12 dB.
> Since you are not limited in time (like me, when beeing /p with that
> small generator), people can try in "DFCW-60000" or 47 uHz! Another 20
> dB! :-)
> And if you use a 7000m wire, is it then 10x the loop area? Would that be
> another 20 dB? :-)
>
> Maybe you can gain VE7BDQ or VE7TIL (you remember?) and some other
> stations in a range below 1000 km for first tests! :-)
>
> BTW without the need for a loading coil of several 100 mH there is no
> sound that nerves the XYL so it's very friendly to all :-)
>
> Give it a try! +100m each week!
>
> And keep us informed about the progress!
>
> 73, Stefan/DK7FC
>
>
>
> Am 13.11.2013 06:14, schrieb Laurence KL7 L:
> >
> >
> >>
> >>
> >>
> >>
> >> Subject: VLF DK7FC ?
> >>
> >> Stefan =96 is there any (any?) chance we can persuade you to goto your favorite field location and shove up the Kite again over the winter period for another run at VLF over the Pole =96 Ive improved my s/n here down in the lower reaches and you never know?
> >>
> >> Thanks
> >> Long haul up here at the moment is just awful =96 pretty auroras and snow=85.
> >> Laurence (and others!) kl7l
> >>
> >>
>
--------------030002040600050404020309--