Return-Path: Received: from mtain-mi01.r1000.mx.aol.com (mtain-mi01.r1000.mail.aol.com [172.21.131.154]) by air-dc06.mail.aol.com (v129.10) with ESMTP id MAILINDC063-86524db86109212; Wed, 27 Apr 2011 14:31:37 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mi01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 8DF523800009E; Wed, 27 Apr 2011 14:31:31 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QF9VI-0007Xu-2j for rs_out_1@blacksheep.org; Wed, 27 Apr 2011 19:30:24 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QF9VH-0007Xl-NR for rsgb_lf_group@blacksheep.org; Wed, 27 Apr 2011 19:30:23 +0100 Received: from fmmailgate05.web.de ([217.72.192.243]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QF9VF-0004QG-8k for rsgb_lf_group@blacksheep.org; Wed, 27 Apr 2011 19:30:23 +0100 Received: from mwmweb086 ( [172.20.18.103]) by fmmailgate05.web.de (Postfix) with ESMTP id 7229C6535CB8 for ; Wed, 27 Apr 2011 20:30:15 +0200 (CEST) Received: from [78.55.126.237] by mwmweb086 with HTTP; Wed Apr 27 20:30:15 CEST 2011 Date: Wed, 27 Apr 2011 20:30:15 +0200 (CEST) From: di2am@web.de To: rsgb_lf_group@blacksheep.org Message-ID: <1854181612.103304.1303929015459.JavaMail.fmail@mwmweb086> MIME-Version: 1.0 X-Priority: 3 Importance: normal Sensitivity: Normal X-Provags-ID: V01U2FsdGVkX18pYrrzs/XvX+Cs8wRgn6aBR0xdiA5Bb45P2f998R9fANxbu/+SmYNy XRrxO7o1bAodownDinNXGg== X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,MIME_HTML_ONLY=0.001,NO_REAL_NAME=0.55 Subject: Re: LF: DEBEG 7121 antenna impedance ? Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.7 required=5.0 tests=HTML_40_50,HTML_MESSAGE, MIME_HTML_ONLY,NO_REAL_NAME,PRIORITY_NO_NAME 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: 3039400cdec94db861035830 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) Good evening,=

afair and according to older literature i've got here the power= of a mf ship transmitter had to be measured at 2.2 ohms / 500 pf and = ; additionally the tx should have been tuneable at 6 ohms / 500 pf. Usuall= y the ranges have been much wider by changing internal elements (coil taps= or condensers) or additional external elements ( e.g. "Notantennensp= ule" - "reserve antenna coil").
Hope this helps
73= gl
Joerg, DL3NRV

Von: "Uwe Wensauer" <uwe.wensauer@gmx.de><= br/>Gesendet: 27.04.2011 19:35:12
An: "LF Group&quo= t; <rsgb_lf_group@blacksheep.org>
Betreff: LF: DEBEG 7121= antenna impedance ?

Question: in what impedanc= e range can the built in Tuner match antennas ?
I assume,= that the range is similar to HAGENUK MS 400, --- abt 3 Ohms ?
=

Any help welcome

73
=
Uwe, DK1KQ