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=-0.8 required=5.0 tests=BAYES_00,FORGED_RCVD_HELO, 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 u48JOGT6001102 for ; Sun, 8 May 2016 21:24:17 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1azUEM-0000Ch-J9 for rs_out_1@blacksheep.org; Sun, 08 May 2016 20:19:06 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1azUEF-0000CY-BN for rsgb_lf_group@blacksheep.org; Sun, 08 May 2016 20:18:59 +0100 Received: from parrot.netcom.co.uk ([217.72.171.49]) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1azUED-0007XG-OL for rsgb_lf_group@blacksheep.org; Sun, 08 May 2016 20:18:58 +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 B3C9B3273E4 for ; Sun, 8 May 2016 20:17:32 +0100 (BST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 534C6400052 for ; Sun, 8 May 2016 19:18:56 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <40b8e5c6692149a7911fe77631ebb33b@kabelmail.de> <572BB679.2040107@posteo.de> <572BE449.5010806@abelian.org> <279E0DEFDAFA4C849152DBBA3BFEDE8C@White> <572C5E72.7010404@posteo.de> <912731037.20160506233059@mterrier.net> <572D1111.9030302@posteo.de> <572D9843.7060402@abelian.org> <572DBBD3.3020709@posteo.de> <572DC660.5050007@abelian.org> <572E4BF7.1060103@posteo.de> From: Paul Nicholson Message-ID: <572F9120.2010200@abelian.org> Date: Sun, 8 May 2016 19:18:56 +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: <572E4BF7.1060103@posteo.de> X-Scan-Signature: 5c335215f1b3de26d890ee84d49616ce Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz 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: 8025 > There was another carrier from 09:45...19:45 UTC today [7th] > on 6470 Hz. Thanks, that was useful against the low daytime noise. I'm having fun with the H field rx, it's not working so well at 6.47 compared with 8.27. E field is doing well. At 8.27 usually H has the better S/N but not so at 6.47 I think because of the hum harmonics reducing the blanker effectiveness. The above carrier helps with diagnostics. > Start time: 07.05.2016 20:00:02 UTC > Period: 100s > Length: 19 > CRC 16 > Coding 8K19A A problem with the E-field rx here may disrupt that. Battery went flat today while I was out. Lost about 3 hours. No a disaster, EbNaut can still recover the message if the rest is received well enough. It was a very noisy night last night and geomagnetic disturbance this morning. Maybe today and tonight will make up for that. -- Paul Nicholson --