Return-Path: X-Spam-DCC: paranoid 1290; Body=3 Fuz1=3 Fuz2=3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u1EBdiQm006826 for ; Sun, 14 Feb 2016 12:39:44 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aUuzA-000536-1E for rs_out_1@blacksheep.org; Sun, 14 Feb 2016 11:37:04 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aUuz9-00052x-OH for rsgb_lf_group@blacksheep.org; Sun, 14 Feb 2016 11:37:03 +0000 Received: from smtpcmd02102.aruba.it ([62.149.158.102]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1aUuyA-0000KE-Dm for rsgb_lf_group@blacksheep.org; Sun, 14 Feb 2016 11:37:02 +0000 Received: from PC-MAURO.stmb.it ([79.16.192.158]) by smtpcmd02.ad.aruba.it with bizsmtp id JBbl1s0043RWVmv01Bblw1; Sun, 14 Feb 2016 12:35:46 +0100 X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Sun, 14 Feb 2016 12:35:41 +0100 To: rsgb_lf_group@blacksheep.org, "RSGB LF Group" From: IK1WVQ Mauro In-Reply-To: <3981E6D8F52B4389AF4A28205EA12878@pcn5> References: <3981E6D8F52B4389AF4A28205EA12878@pcn5> Mime-Version: 1.0 X-Scan-Signature: e6de17d69e46ff4ea8db042ef2cd7e46 Message-Id: Subject: Re: LF: De F6CNI : Testing this evening a short whip on WSPR2 MF. Content-Type: text/plain; charset="iso-8859-1"; format=flowed 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by paranoid.lipkowski.org id u1EBdiQm006826 Status: O X-Status: X-Keywords: X-UID: 6794 interesting. what "conterpoise" are you using ??? 73 de Mauro IK1WVQ At 11:37 14/02/2016, F6CNI - Andy - JN19QB wrote: >Hi All. > > > >This evening I’ll test on MF WSPR2 a short 5 >meters long vertical whip. It is a thin wire >inside a telescopic fiberglass fishing pole. > > > >Including coil and ground resistances, the base >impedance is 54 - 10100 j. The antenna needs >about 3.4mH serial coil to tune it. > > > >Computed effeciency is – 33 dB. Using 1 Watt >output TX for this test, the expected ERP is 0.5 mW and 0.75 mW for the EIRP. > > > >Base current is 135 mA and RMS RF voltage is 1350 V. > > > >Reports be welcome. > > > >73 de Andy.