Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc05.r1000.mx.aol.com (Internet Inbound) with ESMTP id E2B25380000AB; Thu, 26 Jul 2012 13:40:41 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SuS2Y-00066n-PZ for rs_out_1@blacksheep.org; Thu, 26 Jul 2012 18:39:58 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SuS2Y-00066e-95 for rsgb_lf_group@blacksheep.org; Thu, 26 Jul 2012 18:39:58 +0100 Received: from mail-wg0-f47.google.com ([74.125.82.47]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1SuS2W-0004Dh-GG for rsgb_lf_group@blacksheep.org; Thu, 26 Jul 2012 18:39:57 +0100 Received: by wgbfa7 with SMTP id fa7so1587024wgb.28 for ; Thu, 26 Jul 2012 10:39:55 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=wrSPNg+HJ1xtI9qbNUKLSe8v7BQGogQNLc0WuvZ2KKw=; b=TSMVcCCzY8bIJFTzsohXprtXnBFmB10/VrRD9Ufs1F7bHdkBIm33t4CP5YHtRemNZQ lWhYwwsdbFmJgUpFYKRPXktKFqG6IstY4xMEhqhYB8ws0aRQy8y5tM8/L7XyN7cHVwlQ YTFm5NOeD9GGoD57HXAgJ/KiudKpqM2izkashKe8DX0EMR8eAlA1TQhm5mlzMBHKBez5 Rvevi8x/v+VzYiQjNPUj4+Er/jC4pnhP6ehPdjnaaVdoPVIKo//QwZFlyzi7wqbdAx2d 9BTn8Us7lcWS6Cap5XGFHGph5XGpZ3Guaqz6IxRWELJrYe7AB7j59kiY4ssp+8Xm0LWY HFVg== MIME-Version: 1.0 Received: by 10.216.138.26 with SMTP id z26mr13333277wei.57.1343324395661; Thu, 26 Jul 2012 10:39:55 -0700 (PDT) Received: by 10.194.42.228 with HTTP; Thu, 26 Jul 2012 10:39:55 -0700 (PDT) In-Reply-To: <50113D08.8020407@iup.uni-heidelberg.de> References: <50113D08.8020407@iup.uni-heidelberg.de> Date: Thu, 26 Jul 2012 13:39:55 -0400 Message-ID: From: Warren Ziegler To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. 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Content preview: Stefan, I imagine that a LF or VLF small vertical is a relatively high-Q circuit, how do you manage to keep the kite vertical in resonance and matched while the kite bounces around in the wind? 73 Warren K2ORS [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [74.125.82.47 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (wd2xgj[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.7 HTML_IMAGE_ONLY_28 BODY: HTML: images with 2400-2800 bytes of words 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: 3efbf4053c1a70bbeb6c0a0cc657f05e Subject: Re: LF: Kites Content-Type: multipart/alternative; boundary=0016e6d6446d6be90a04c5bf1530 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-SCORE: 0:2:478156000:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m001.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d408550118119248a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --0016e6d6446d6be90a04c5bf1530 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Stefan, I imagine that a LF or VLF small vertical is a relatively high-Q circuit, how do you manage to keep the kite vertical in resonance and matched while the kite bounces around in the wind? 73 Warren K2ORS On Thu, Jul 26, 2012 at 8:50 AM, Stefan Sch=E4fer < Stefan.Schaefer@iup.uni-heidelberg.de> wrote: > ** > Hello Giorgio, > > Am 26.07.2012 14:13, schrieb IZ2JGB: > > Hello group, > > While resting a little on The local beach in Numana , Italy, i've managed > a good > Deal with a vendor and aquired a big kite to try some antenna tests. > > Stephan, how's big a kite should be to > Fly a suitable Cooper / iron wire ? > > > That depends on the kite itselfe, the weight of the wire but in the first > way it depends on the location! If you intend to fly the kite on flat lan= d > and/or on the coast where the wind is mostly stable and strong then a sma= ll > kite, maybe 1 m^2 is OK. But if the wind is unstable and the velocity is > low then you need more area. My "small" kite has 3.6m^2 and the big one h= as > 8.1m^2. For example, the 300m vertical was hold stable at the sky for hou= rs > in my 10th VLF experiment. The small kite carries the wire when the wind > speed is 18 km/h or say 3-4 BFT. The big kite just needs 10 km/h or about > 2-3 BFT to carry the 300m wire. > > The picture looks like this is a small kite, smaller than 1 m^2. But you > need a thinner line for the kite and if you use a thin wire which is only > 100m long or so and fly it on the coast then this should work! > Just try it. :-) > And don't forget to tell us :-) > > 73, Stefan/DK7FC > > > > > Thanks, > Giorgio > > Inviato da iPhone > > > --=20 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 --0016e6d6446d6be90a04c5bf1530 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Stefan,
=A0 =A0 =A0 I imagine that a LF or VLF small vertical is a rela= tively high-Q circuit, how do you manage to keep the kite vertical in reson= ance and matched while the kite bounces around in the wind?

<= /div>
73 Warren K2ORS


On Thu, J= ul 26, 2012 at 8:50 AM, Stefan Sch=E4fer <Stefan.Schae= fer@iup.uni-heidelberg.de> wrote:
=20
Hello Giorgio,

Am 26.07.2012 14:13, schrieb IZ2JGB:
Hello group,

While resting a little on The local beach in Numana , Italy, i've managed a good
Deal with a vendor and aquired a big kite to try some antenna tests.

Stephan, how's big a kite should be to
Fly a suitable Cooper / iron wire ?

That depends on the kite itselfe, the weight of the wire but in the first way it depends on the location! If you intend to fly the kite on flat land and/or on the coast where the wind is mostly stable and strong then a small kite, maybe 1 m^2 is OK. But if the wind is unstable and the velocity is low then you need more area. My "small&qu= ot; kite has 3.6m^2 and the big one has 8.1m^2. For example, the 300m vertical was hold stable at the sky for hours in my 10th VLF experiment. The small kite carries the wire when the wind speed is 18 km/h or say 3-4 BFT. The big kite just needs 10 km/h or about 2-3 BFT to carry the 300m wire.

The picture looks like this is a small kite, smaller than 1 m^2. But you need a thinner line for the kite and if you use a thin wire which is only 100m long or so and fly it on the coast then this should work!
Just try it. :-)
And don't forget to tell us :-)

73, Stefan/DK7FC




Thanks,
Giorgio

Inviato da iPhone





--
73 Warren K2= ORS
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ
=A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 WD2XSH/23
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XEB/2
=A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1

=A0
--0016e6d6446d6be90a04c5bf1530--