Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: INFN-TO: mailn 1233; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v0S8Oi5f028432 for ; Sat, 28 Jan 2017 09:24:45 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cXODA-0004Gq-OW for rs_out_1@blacksheep.org; Sat, 28 Jan 2017 08:18:16 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cXODA-0004Gg-Fs for rsgb_lf_group@blacksheep.org; Sat, 28 Jan 2017 08:18:16 +0000 Received: from porthos.netcom.co.uk ([217.72.171.73]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1cXOD7-0005It-OC for rsgb_lf_group@blacksheep.org; Sat, 28 Jan 2017 08:18:15 +0000 X-DKIM-Result: Domain=abelian.org Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=hnX8IEDcwisUT4aI1XI1aSfHOoEI1PtD4ZintqpviWA=; b=MPWkEH+mSTJW6tNcLQflcsTSVy 2V3k5JPg7HuZcdD/VIr6xS0v9n63JbArI5xBidhQtrBcvKs1/LqGL2D8CDhTQZqWgy1uH3SX2gmuz MWlPb+YEc//rKcfkTJleauDjXw1GpPdsjwlFTlurNGcfOfkJK/ja6asEDWGl6FSXr3Wo=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:48888 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1cXOD7-0002So-Ck for rsgb_lf_group@blacksheep.org; Sat, 28 Jan 2017 08:18:13 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 334564002D1 for ; Sat, 28 Jan 2017 08:18:12 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <159e00f42d3-7bf3-ae24@webprd-m95.mail.aol.com> <588B521E.3080903@posteo.de> <1485531976.244369934@f375.i.mail.ru> <588B7650.10102@posteo.de> From: Paul Nicholson Message-ID: <588C53C4.4060103@abelian.org> Date: Sat, 28 Jan 2017 08:18:12 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 MIME-Version: 1.0 In-Reply-To: <588B7650.10102@posteo.de> X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - porthos.netcom.co.uk X-AntiAbuse: Original Domain - blacksheep.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - abelian.org X-Get-Message-Sender-Via: porthos.netcom.co.uk: authenticated_id: catchall@abelian.org X-Authenticated-Sender: porthos.netcom.co.uk: catchall@abelian.org X-Scan-Signature: bb61bee384896e075004ae5ec954ddd2 Subject: Re: VLF: Transmission 8270 Hz - first pixels Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit 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 2.75 Status: RO X-Status: X-Keywords: X-UID: 10365 Markus wrote: > Three stations simultaneusly on air would be cool, just > like in the old days on 8970. Ah 8970, those were the days http://abelian.org/vlf/tmp/110308b.gif Right now, Stefan's signal is doing something different to carrier. Rain all day here otherwise I would probably be using Stefan's carrier to test my replacement E-field rx. I built this over a year ago but haven't got it working properly yet. On the bench it has a lower noise floor but not so good connected to the antenna. The problem is with the line driver not cleanly handling the strong 50Hz component. It raises the noise floor by just over a dB. -- Paul Nicholson --