Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, NO_REAL_NAME 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 t8KKM26O013749 for ; Sun, 20 Sep 2015 22:22:02 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Zdl4m-0001wh-63 for rs_out_1@blacksheep.org; Sun, 20 Sep 2015 21:19:08 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Zdl4l-0001wY-Uo for rsgb_lf_group@blacksheep.org; Sun, 20 Sep 2015 21:19:07 +0100 Received: from nina.ucs.mun.ca ([134.153.232.76]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.86) (envelope-from ) id 1Zdl3i-0008Io-JC for rsgb_lf_group@blacksheep.org; Sun, 20 Sep 2015 21:19:06 +0100 Received: from plato.ucs.mun.ca (plato.ucs.mun.ca [134.153.232.153]) by nina.ucs.mun.ca (8.13.1/8.13.1) with ESMTP id t8KKHlmD009091 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sun, 20 Sep 2015 17:47:47 -0230 Date: Sun, 20 Sep 2015 17:47:47 -0230 (NDT) From: jcraig@mun.ca X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: <55FF0906.9090800@posteo.de> Message-ID: References: <55FF0906.9090800@posteo.de> MIME-Version: 1.0 X-Scan-Signature: 4ead635eadbaebfaa92cfec77deb715d Subject: LF: 477.7 kHz CW Content-Type: TEXT/PLAIN; charset=US-ASCII; 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 Status: O X-Status: X-Keywords: X-UID: 4109 Dear Group, Yesterday I noticed that when the power was increased above 2 watts, the SWR shot up along with the drain current in the Class E TX. Noting a 6Meg and slowly increasing resistance across the coax, moisture was the suspect, but checking the splices and redoing them was a waste of time; putting a 50R load at far end confirmed the problem was elsewhere. The powdered iron core matching xfmr between the coax and the tuning coil was replaced and now all is fine with 50 watts to the monopole. The TX is QRV 12 WPM until 1000 utc tommorrow or the until new xfmr starts to misbehave. QRG +- 2 Hz or so. Reports are most welcome. 73 Joe VO1NA