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[195.171.43.25]) by mx.google.com with ESMTP id yx7si43406212wjc.120.2014.06.11.12.27.53 for ; Wed, 11 Jun 2014 12:27:54 -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; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WunZZ-0004C7-FF for rs_out_1@blacksheep.org; Wed, 11 Jun 2014 19:48:33 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WunZZ-0004By-18 for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 19:48:33 +0100 Received: from mail-qc0-f181.google.com ([209.85.216.181]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.82) (envelope-from ) id 1WunZW-0007oP-Rf for rsgb_lf_group@blacksheep.org; Wed, 11 Jun 2014 19:48:31 +0100 Received: by mail-qc0-f181.google.com with SMTP id x13so262043qcv.26 for ; Wed, 11 Jun 2014 11:48:26 -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=heDwaYQR67JuRuZa0hswwy5Ce71xOD4J2P614ednq2s=; b=Azrxo+62I86O9RIDXbuc9E40w77NfwkS5id2PJOjriawSxckfAlCjvpk+DHP/xA48j qrGY8x7Iwu7J3qOwpLQlAD5p975oPwl9hbW8A1hncP09FfAi2i5tIggJymU7Vl5sDUGk 49qf6jXXZm+oMZ5+RZW53v2OgJlagDFzmnUhRLVVoviIAdsanVVelQBcZ5dfX41lRZ/V BxkkM3qta3bPMg+YWbeOLcbNrl0jOVFRSRQk6Enml4Wq7tTz8Jk/PPtK7jhmDUIb5/9T fjWOHWw+7wbsUcrYAfhrKb5pAfBS12VFhTGiFljW7hEkiRe8wbzmXTEBTcp9tCloNhwX N7jg== MIME-Version: 1.0 X-Received: by 10.224.67.201 with SMTP id s9mr54481051qai.29.1402512506410; Wed, 11 Jun 2014 11:48:26 -0700 (PDT) Received: by 10.96.142.6 with HTTP; Wed, 11 Jun 2014 11:48:26 -0700 (PDT) In-Reply-To: <3770DB88C886471A8D3D1C93C8E9AF2F@F6CNI> References: <3770DB88C886471A8D3D1C93C8E9AF2F@F6CNI> Date: Wed, 11 Jun 2014 14:48:26 -0400 Message-ID: From: Warren Ziegler To: "rsgb_lf_group@blacksheep.org" X-Spam-Score: -0.7 (/) 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: 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: [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.216.181 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 0.0 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: f1284eec928b6c66f973fc41cf683e42 Subject: Re: LF: Testing WSPR2 to night a short antenna for future mobile use on MF band. Content-Type: multipart/alternative; boundary=001a11c303d4bcdde704fb93e349 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=CELL_PHONE_BOOST,HTML_50_60, HTML_MESSAGE,HTML_TAG_EXISTS_TBODY,TO_ADDRESS_EQ_REAL 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 --001a11c303d4bcdde704fb93e349 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Andy, You need such a large inductance for this, be careful how you wind the coil since self=E2=80=93resonance might be near the operating frequency! 73 Warren K2ORS On Tuesday, June 10, 2014, Andr=C3=A9 Guy=C3=A9 = 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=E2=80=99ll test this first configuration : a 2 meters high tub= e (2 cm > of diameter) and a top hat (wheel shape) 80 cm of diameter. It needs abou= t > 2.4 mH base coil tuning. The *TX is 3 Watts output*. Base voltage is 2,2 > kV RMS. > > > > *I=E2=80=99ll 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 =C3=A9lectronique ne contient aucun virus ou logiciel malveil= lant > parce que la protection Antivirus avast! est > active. > > --=20 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 --001a11c303d4bcdde704fb93e349 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Andy,
=C2=A0 =C2=A0You need such a large inductance for this, be carefu= l how you wind the coil since self=E2=80=93resonance might be near the oper= ating frequency!
73 Warren K2ORS


On Tuesday, Ju= ne 10, 2014, Andr=C3=A9 Guy=C3=A9 <andre.guye1@aliceadsl.fr> wrote:

Hi to all.

=C2=A0

I am thinking now about the design of a short vertical=20 antenna, for MF mobile use in next winter season.

=C2=A0

To night I=E2=80=99ll test this first configuration : a 2 meters=20 high tube (2 cm of diameter) and a top hat (wheel shape) 80 cm of diameter.= It=20 needs about 2.4 mH base coil tuning. The TX is 3 Watts output.=20 Base voltage is 2,2 kV RMS.

=C2=A0

I=E2=80=99ll test this small antenna to=20 night, beginning at=20 2000 TU on WSPR2 MF band. The expected ERP is about 1 mW.

=C2=A0

All reports be welcome. Note that to night the testing=20 antenna has his base on the garden with a ground earth rod, so it is not=20 installing on my car.

=C2=A0

73 de Andy. F6CNI -=20 JN19QB



Ce courrier =C3=A9lectronique ne contient aucun virus ou logiciel malve= illant parce que la protection Antivirus avast! est active.




--
73 Warren K2ORS
=C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 WD2XGJ
=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 WD2XSH/23
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 WE2XEB/2
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 WE2XGR/1

=C2=A0
--001a11c303d4bcdde704fb93e349--