Return-Path: Received: from mtain-mb07.r1000.mx.aol.com (mtain-mb07.r1000.mx.aol.com [172.29.96.27]) by air-mc07.mail.aol.com (v129.4) with ESMTP id MAILINMC071-a97b4d5c033a258; Wed, 16 Feb 2011 12:02:50 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb07.r1000.mx.aol.com (Internet Inbound) with ESMTP id 4427538000284; Wed, 16 Feb 2011 12:02:48 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PpklP-0003Co-Nf for rs_out_1@blacksheep.org; Wed, 16 Feb 2011 17:02:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PpklP-0003CS-2X for rsgb_lf_group@blacksheep.org; Wed, 16 Feb 2011 17:02:03 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PpklN-0002Ou-AL for rsgb_lf_group@blacksheep.org; Wed, 16 Feb 2011 17:02:03 +0000 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p1GH1xwj002351 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 16 Feb 2011 18:02:00 +0100 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p1GH1xG6009055 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 16 Feb 2011 18:01:59 +0100 Received: from [129.206.196.61] (vpn061a.rzuser.uni-heidelberg.de [129.206.196.61]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id p1GH1vt1028934 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 16 Feb 2011 18:01:58 +0100 Message-ID: <4D5C0312.5050400@iup.uni-heidelberg.de> Date: Wed, 16 Feb 2011 18:02:10 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <006301cbcd3a$cd0364a0$0401a8c0@xphd97xgq27nyf> <009101cbcd4f$81d98da0$0401a8c0@xphd97xgq27nyf> <70ED8F4523F743C399A3F88C9F870D62@JimPC> <4D5BD4D1.5020405@iup.uni-heidelberg.de> <4D5BF19D.50305@iup.uni-heidelberg.de> In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: TA TONITE Content-Type: multipart/alternative; boundary="------------030102000303090604040208" 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-sid: 3039ac1d601b4d5c03384e84 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------030102000303090604040208 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay2.uni-heidelberg.de id p1GH1xwj002351 Hello Toni, Am 16.02.2011 17:39, schrieb HB9ASB: > A 100 to 300m Kite antenna. Wow. I would like to learn more about it.=20 > Do you have a picture? Oh well, there are many many pictures at: http://www.qrz.com/db/DK7FC The bottom pictures of this page shows my=20 LF coil on a black PE barrel, about 2.3 mH when using the 100m antenna.=20 It has a tap now at 650 uH if i remember correctly :-) For the latest pictures see :=20 http://mkorbit.de/2010/12/05/weltrekord-signalubertragung-auf-einer-langst= welle-vlf/ =20 and http://mkorbit.de/2011/02/08/signalubertragung-auf-langstwelle-vlf/ If you have further questions, just ask :-) 73, Stefan > Hope you get well soon. Have a quick recovery! > 73 de Toni > > > > 2011/2/16 Stefan Sch=E4fer > > > Hello Tony, > > Currently i'm ill and have to stay in bed for some days. So i > shouldn't go out in the field in the weekend when there is strong > wind and cold... You know i'm using a 100m or 300m kite vertical > antenna /p. So i hope to find a suitable day within february. I > will inform you then, a day before, or two. > > Tnx for the chance! > > 73, GL, Stefan > > Am 16.02.2011 15:42, schrieb HB9ASB: >> Hello Stefan >> End of February it's all over and we go back to our shacks with >> the tiny antennas. May be we will get an opportunity to use the >> tower later, as I understand they will leave it as national >> heritage. The next possibilities for a sked in CW is tomorrow >> evening. My friends Iacopo and Claude-Alain will be at the >> station and I could advise them by Email or phone. Or Friday >> early in the evening. >> 73 de Toni >> >> >> 2011/2/16 Stefan Sch=E4fer > > >> >> Hi Toni, >> >> Am 16.02.2011 14:08, schrieb HB9ASB: >>> Thanks Rik >>> I've read somewhere that DCF39 has 40kW EIRP. So we would >>> have around 4W EIRP. Last week a station measured our field >>> strength, 100km away and came to 0.4WEIRP. This is probably >>> a little bit to low. Anyway, it shows me again, that most >>> amateurs overestimate their ERP. Even Mal has probably not >>> the Watt he claims ;-) >>> 73 de Toni >> >> Yes, maybe that applies for me too ;-) >> BTW, Toni, i would like to try a sked on 137/137 in CW from >> JN49IS36VH >> with you if you are interested. When do you have to make QRT >> on that antenna? Can't you ask them just to let the antenna >> arranged as it is, for amateur purposes!? :-) >> >> 73, Stefan/DK7FC >> >> > --------------030102000303090604040208 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hello Toni,

Am 16.02.2011 17:39, schrieb HB9ASB:
A 100 to 300m Kite antenna. Wow. I would like to learn more about it. Do you have a picture?

Oh well, there are many many pictures at:
http://www.qrz.com/db/DK7FC  The bottom pictures of this page shows my LF coil on a black PE barrel, about 2.3 mH when using the 100m antenna. It has a tap now at 650 uH if i remember correctly :-)
For the latest pictures see : http://mkorbit.de/2010/12/05/weltrekord-signalubertragung-auf-einer-langstwelle-vlf/  and http://mkorbit.de/2011/02/08/signalubertragung-auf-langstwelle-vlf/

If you have further questions, just ask :-)

73, Stefan


Hope you get well soon. Have a quick recovery!
73 de Toni



2011/2/16 Stefan Schäfer <schaefer@iup.uni-heidelberg.de>
Hello Tony,

Currently i'm ill and have to stay in bed for some days. So i shouldn't go out in the field in the weekend when there is strong wind and cold... You know i'm using a 100m or 300m kite vertical antenna /p. So i hope to find a suitable day within february. I will inform you then, a day before, or two.

Tnx for the chance!

73, GL, Stefan

Am 16.02.2011 15:42, schrieb HB9ASB:
Hello Stefan
End of February it's all over and we go back to our shacks with the tiny antennas. May be we will get an opportunity to use the tower later, as I understand they will leave it as national heritage. The next possibilities for a sked in CW is tomorrow evening. My friends Iacopo and Claude-Alain will be at the station and I could advise them by Email or phone. Or Friday early in the evening.
73 de Toni


2011/2/16 Stefan Schäfer <schaefer@iup.uni-heidelberg.de>
Hi Toni,

Am 16.02.2011 14:08, schrieb HB9ASB:
Thanks Rik
I've read somewhere that DCF39 has 40kW EIRP. So we would have around 4W EIRP. Last week a station measured our field strength, 100km away and came to 0.4WEIRP. This is probably a little bit to low. Anyway, it shows me again, that most amateurs overestimate their ERP. Even Mal has probably not the Watt he claims ;-)
73 de Toni

Yes, maybe that applies for me too ;-)
BTW, Toni, i would like to try a sked on 137/137 in CW from JN49IS36VH with you if you are interested. When do you have to make QRT on that antenna? Can't you ask them just to let the antenna arranged as it is, for amateur purposes!? :-)

73, Stefan/DK7FC


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