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[195.171.43.25]) by mx.google.com with ESMTP id hb4si23612604wib.0.2014.06.11.12.57.51 for ; Wed, 11 Jun 2014 12:57:51 -0700 (PDT) Received-SPF: none (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: owner-rsgb_lf_group@blacksheep.org does not designate permitted sender hosts) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WuoDC-0004JY-Kf for rs_out_1@blacksheep.org; Wed, 11 Jun 2014 20:29:30 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WuoDC-0004JP-29 for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 20:29:30 +0100 Received: from mout1.freenet.de ([195.4.92.91]) by relay1.thorcom.net with esmtps (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.82) (envelope-from ) id 1WuoDA-0007ug-1U for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 20:29:28 +0100 Received: from [195.4.92.142] (helo=mjail2.freenet.de) by mout1.freenet.de with esmtpa (ID dl4yhf@freenet.de) (port 25) (Exim 4.82 #1) id 1WuoD8-0006Qo-Vk for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 21:29:26 +0200 Received: from localhost ([::1]:43264 helo=mjail2.freenet.de) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.82 #1) id 1WuoD8-0003fG-RG for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 21:29:26 +0200 Received: from mx7.freenet.de ([195.4.92.17]:41788) by mjail2.freenet.de with esmtpa (ID dl4yhf@freenet.de) (Exim 4.82 #1) id 1WuoAC-0001qr-Q2 for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 21:26:24 +0200 Received: from blfd-4db02031.pool.mediaways.net ([77.176.32.49]:4003 helo=[192.168.178.21]) by mx7.freenet.de with esmtpsa (ID dl4yhf@freenet.de) (TLSv1:DHE-RSA-CAMELLIA256-SHA:256) (port 465) (Exim 4.82 #1) id 1WuoAC-0001dd-B2 for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 21:26:24 +0200 Message-ID: <5398AD7D.7030000@freenet.de> Date: Wed, 11 Jun 2014 21:26:53 +0200 From: wolf_dl4yhf User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <3770DB88C886471A8D3D1C93C8E9AF2F@F6CNI> In-Reply-To: X-Originated-At: 77.176.32.49!4003 X-Spam-Score: -0.6 (/) 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: I have a similar device here, but the topload is a large aluminium toroid, and the tube is quite fat. I decided to call it a Tesla coil ;-) 73, Wolf . Am 11.06.2014 20:48, schrieb Warren Ziegler: > Andy, > You need such a large inductance for this, be careful how you wind > the coil since self–resonance might be near the operating frequency! > 73 Warren K2ORS > > > On Tuesday, June 10, 2014, André Guyé wrote: > > Hi to all. > > I am thinking now about the design of a short vertical antenna, > for MF mobile use in next winter season. > > To night I’ll test this first configuration : a 2 meters high tube > (2 cm of diameter) and a top hat (wheel shape) 80 cm of diameter. > It needs about 2.4 mH base coil tuning. The *TX is 3 Watts > output*. Base voltage is 2,2 kV RMS. > > *I’ll test this small antenna to night*, beginning at 2000 TU on > WSPR2 MF band. The expected ERP is about 1 mW. > > All reports be welcome. Note that to night the testing antenna has > his base on the garden with a ground earth rod, so it is not > installing on my car. > > 73 de Andy. F6CNI - JN19QB > > > > > > > Ce courrier électronique ne contient aucun virus ou logiciel > malveillant parce que la protection Antivirus avast! > est active. > > > > > -- > 73 Warren K2ORS > WD2XGJ > WD2XSH/23 > WE2XEB/2 > WE2XGR/1 > > [...] Content analysis details: (-0.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [195.4.92.91 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dl4yhf[at]freenet.de) -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: 46d617994b9fba079dc3ad7182acba54 Subject: Re: LF: Testing WSPR2 to night a short antenna for future mobile use on MF band. Content-Type: multipart/alternative; boundary="------------090106040705040106070400" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.2 required=5.0 tests=CELL_PHONE_BOOST,HTML_40_50, HTML_MESSAGE,HTML_TAG_EXISTS_TBODY 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 This is a multi-part message in MIME format. --------------090106040705040106070400 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit I have a similar device here, but the topload is a large aluminium toroid, and the tube is quite fat. I decided to call it a Tesla coil ;-) 73, Wolf . Am 11.06.2014 20:48, schrieb Warren Ziegler: > Andy, > You need such a large inductance for this, be careful how you wind > the coil since self–resonance might be near the operating frequency! > 73 Warren K2ORS > > > On Tuesday, June 10, 2014, André Guyé > wrote: > > Hi to all. > > I am thinking now about the design of a short vertical antenna, > for MF mobile use in next winter season. > > To night I’ll test this first configuration : a 2 meters high tube > (2 cm of diameter) and a top hat (wheel shape) 80 cm of diameter. > It needs about 2.4 mH base coil tuning. The *TX is 3 Watts > output*. Base voltage is 2,2 kV RMS. > > *I’ll test this small antenna to night*, beginning at 2000 TU on > WSPR2 MF band. The expected ERP is about 1 mW. > > All reports be welcome. Note that to night the testing antenna has > his base on the garden with a ground earth rod, so it is not > installing on my car. > > 73 de Andy. F6CNI - JN19QB > > > > ------------------------------------------------------------------------ > > > Ce courrier électronique ne contient aucun virus ou logiciel > malveillant parce que la protection Antivirus avast! > est active. > > > > > -- > 73 Warren K2ORS > WD2XGJ > WD2XSH/23 > WE2XEB/2 > WE2XGR/1 > > --------------090106040705040106070400 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit
I have a similar device here, but the topload is a large aluminium toroid, and the tube is quite fat.
I decided to call it a Tesla coil ;-)

73,
   Wolf .

Am 11.06.2014 20:48, schrieb Warren Ziegler:
Andy,
   You need such a large inductance for this, be careful how you wind the coil since self–resonance might be near the operating frequency!
73 Warren K2ORS


On Tuesday, June 10, 2014, André Guyé <andre.guye1@aliceadsl.fr> wrote:

Hi to all.

 

I am thinking now about the design of a short vertical antenna, for MF mobile use in next winter season.

 

To night I’ll test this first configuration : a 2 meters high tube (2 cm of diameter) and a top hat (wheel shape) 80 cm of diameter. It needs about 2.4 mH base coil tuning. The TX is 3 Watts output. Base voltage is 2,2 kV RMS.

 

I’ll test this small antenna to night, beginning at 2000 TU on WSPR2 MF band. The expected ERP is about 1 mW.

 

All reports be welcome. Note that to night the testing antenna has his base on the garden with a ground earth rod, so it is not installing on my car.

 

73 de Andy. F6CNI - JN19QB



Ce courrier électronique ne contient aucun virus ou logiciel malveillant parce que la protection Antivirus avast! est active.




--
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1

 

--------------090106040705040106070400--