Return-Path: Received: from rly-ma10.mx.aol.com (rly-ma10.mail.aol.com [172.20.116.54]) by air-ma03.mail.aol.com (v121_r5.5) with ESMTP id MAILINMA032-8d1495d58533cb; Thu, 01 Jan 2009 18:57:17 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-ma10.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMA103-8d1495d58533cb; Thu, 01 Jan 2009 18:57:09 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LIXPH-00014j-J2 for rs_out_1@blacksheep.org; Thu, 01 Jan 2009 23:56:51 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LIXPH-00014a-59 for rsgb_lf_group@blacksheep.org; Thu, 01 Jan 2009 23:56:51 +0000 Received: from smtp5-g19.free.fr ([212.27.42.35]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LIXPG-0005xN-Fy for rsgb_lf_group@blacksheep.org; Thu, 01 Jan 2009 23:56:51 +0000 Received: from smtp5-g19.free.fr (localhost.localdomain [127.0.0.1]) by smtp5-g19.free.fr (Postfix) with ESMTP id BC24B3EA1BE for ; Fri, 2 Jan 2009 00:56:49 +0100 (CET) Received: from [192.168.0.1] (cha86-1-82-247-200-10.fbx.proxad.net [82.247.200.10]) by smtp5-g19.free.fr (Postfix) with ESMTP id 7BFCE3EA1BA for ; Fri, 2 Jan 2009 00:56:49 +0100 (CET) Message-ID: <495D5840.4040503@online.fr> Date: Fri, 02 Jan 2009 00:56:48 +0100 From: =?ISO-8859-1?Q?=22Jean-Pierre_M=E9r=E9_=28F1AFJ=29=22?= User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <285F98C95F064AA8B5B6C559814191EC@ns94d01ae4d850> <495BC771.8080702@online.fr> <495D0D23.8050705@online.fr> <775310DAF69C464DB828117B1D6D2E15@Black> In-Reply-To: <775310DAF69C464DB828117B1D6D2E15@Black> X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Re: 137.750 qrss3 Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=0.0 required=5.0 tests=none 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-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Hi Markus , Good luck to track unpleasant the small arc which makes you miseries!=20 ..... And if Murphy is in the party aie aie !...... 73 and HNY for 2009 , Jean-Pierre f1afj Markus Vester a =E9crit : > Hi Jean-Pierre, > > thanks for the report! I was trying to locate an intermittent fault in=20 > the antenna system. Most times, I can go up to my full 200 W, giving=20 > 3.5 A (16 kV rms) without problems. But sporadically already above a=20 > threshold of 1 A (4.5 kV rms), some sort of partial discharge starts=20 > to happen, resulting in increased and erratically variable resistance=20 > and also slightly increased capacitance. It is accompanied by strong=20 > noise emissions in the FM broadcast band (which had been hardly=20 > noticable during several former instances of visible corona). With a=20 > piece of wire as a capacitive probe on a scope, a distinct and fast=20 > "ringing" is present on each rising edge of the carrier sinusoid. I=20 > have tried to look for visual corona in the dark and listen for the=20 > telltale sharp hiss of voltage breakdown, but with no definite=20 > findings up to now. At the moment all seems ok - Murphy's playing hide=20 > and seek... > > Best wishes for 2009, > > de Markus, DF6NM > > ----- Original Message ----- From: ""Jean-Pierre M=E9r=E9 (F1AFJ)""=20 > > To: > Sent: Thursday, January 01, 2009 7:36 PM > Subject: LF: 137.750 qrss3 > > >> Hello Markus (NM) >> Good copy of your signal test now ! >> 73 HNY Jean-Pierre f1afj > > > >