Return-Path: X-Spam-DCC: paranoid 1290; 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=-0.0 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,PLING_QUERY,RATWARE_GECKO_BUILD,SPF_PASS 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 u3F8VeaK022178 for ; Fri, 15 Apr 2016 10:31:40 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aqz5y-0007wt-RM for rs_out_1@blacksheep.org; Fri, 15 Apr 2016 09:27:18 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aqz5y-0007wk-JD for rsgb_lf_group@blacksheep.org; Fri, 15 Apr 2016 09:27:18 +0100 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1aqz5w-0005vw-Oz for rsgb_lf_group@blacksheep.org; Fri, 15 Apr 2016 09:27:17 +0100 Received: from pn.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by parrot.netcom.co.uk (Postfix) with ESMTP id E665C3273E4 for ; Fri, 15 Apr 2016 09:26:23 +0100 (BST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 3F0A6400461 for ; Fri, 15 Apr 2016 08:27:09 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <57101A93.9050904@posteo.de> <8D364FDC57083E1-13C0-757EEB@webmail-vm186.sysops.aol.com> From: Paul Nicholson Message-ID: <5710A5DD.7040300@abelian.org> Date: Fri, 15 Apr 2016 08:27:09 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: <8D364FDC57083E1-13C0-757EEB@webmail-vm186.sysops.aol.com> X-Scan-Signature: 0a4643e586472c13187d293ec5d096c2 Subject: Re: LF: TXing on VLF again, A fan in series to the antenna?! :-) 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 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7723 This time, a good signal at about 0.35 fT http://abelian.org/vlf/tmp/160414a.gif but the noise was high from the same direction so cannot be avoided by steering the loops away. I don't know if this is 150uW, from the signal strength I might guess 50uW max, probably more like 30uW. I ran all 6300 seconds of the carrier through EbNaut to decode an 'all-star' message at two settings: Code Symbols Chars Eb/N0 8K19A 15.0 sec 3 +0.5 dB 16K25A 7.7 sec 3 0.0 dB I couldn't get a 4 char message to decode. If the noise wasn't so high this signal would do very well. How about a daytime test? -- Paul Nicholson --