Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 28BE0380000A8; Sat, 15 Oct 2011 09:19:15 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RF47k-0008Ls-UY for rs_out_1@blacksheep.org; Sat, 15 Oct 2011 14:18:00 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RF47k-0008Lj-6I for rsgb_lf_group@blacksheep.org; Sat, 15 Oct 2011 14:18:00 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RF47j-0007Vd-8x for rsgb_lf_group@blacksheep.org; Sat, 15 Oct 2011 14:18:00 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id p9FDHwmE026001 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 15 Oct 2011 15:17:58 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id p9FDHwfb010832 for ; Sat, 15 Oct 2011 15:17:58 +0200 Message-ID: <4E9987D5.5040809@iup.uni-heidelberg.de> Date: Sat, 15 Oct 2011 15:17:09 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <4E997F3C.8090707@gmail.com> In-Reply-To: <4E997F3C.8090707@gmail.com> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: 136.172 khz 15oct11 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:478925184:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40d84e9988536e5a X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello Dex, Fine. That must have been the start of my first transmission. I changed the PA circuit a bit, now using a ferrite core transformer in the bridge, allowing a grounded unsymmetrical feed cable (will be RG214) to the coil and non-mains-floating cables on the PA output. Somehow i lost 1 FET though, have to repair that now. Start to think about using a different FET drive circuit now since the IRFP-460 should be bored at 2.5 A avrg... Thanks for monitoring and it was a pleasure to see the traces coming in yesterday in the late night. Best 73, Stefan/DK7FC Am 15.10.2011 14:40, schrieb Dexter McIntyre W4DEX: > QRN here was still a spoiler last night but the big 136.172 signal did > partially cut through: > > http://www.w4dex.com/lf/136khz15oct11.jpg > > Dex