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: EATSERVER: mailn 1166; 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 v1BFxlAg018997 for ; Sat, 11 Feb 2017 16:59:48 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cca1T-0002wK-So for rs_out_1@blacksheep.org; Sat, 11 Feb 2017 15:55:39 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cca1S-0002wB-Rg for rsgb_lf_group@blacksheep.org; Sat, 11 Feb 2017 15:55:38 +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 1cca1P-0001CI-7z for rsgb_lf_group@blacksheep.org; Sat, 11 Feb 2017 15:55:37 +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=BoQcC+ukynZ3ZE6UBgupmxWAfeyjbzh0NB1eb/vCB/A=; b=ZWc3vW3aIT/sA42yQKlCIHB6C3 z8rUkH0QolPVeRPshdss0isoxMbAYD1ZTnL0oL9WJU9tiIfrCR4xXun12uJATy/Wx4vxlSPX5lSVQ UB3JX7EEQbBa8gTATyfHD38rzDaUjxxnT6TphpANa4T6RCtuQ+hzahickEobKXLvE53E=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:53658 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.88) (envelope-from ) id 1cca1N-0001gy-7r for rsgb_lf_group@blacksheep.org; Sat, 11 Feb 2017 15:55:33 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 9CEFC4006B3 for ; Sat, 11 Feb 2017 15:55:32 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <15a2dba5096-34ef-84f@webprd-a69.mail.aol.com> From: Paul Nicholson Message-ID: <08d41fff-f8b0-aecd-1afb-f9e65bcadbe8@abelian.org> Date: Sat, 11 Feb 2017 15:55:32 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <15a2dba5096-34ef-84f@webprd-a69.mail.aol.com> 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: 4e3b1488273adbbe9757d6bdd5adf219 Subject: Re: ULF: 5 wavelengths on the 101 km band? Valid or not? 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: 10554 I scraped the pixels off the Cumiana spectrogram, (summing each row) and did my best guess of reversing the mapping of power to pixel brightness. http://abelian.org/vlf/tmp/170211a.png 2970 is the strongest line. At least 3 sigma, maybe 4, depending on how you treat the lumpy floor. A physicist would insist on 5 sigma but the fact that the peak is at exactly the right frequency is significant in itself. Markus just wrote: > In my humble opinion, this is clearly a successful > detection. I was doubtful looking at the spectrogram but having plotted the pixels I am convinced. Spectrograms aren't good for this sort of thing. Oh for a spectrum plot! I couldn't get anything from the stream recording, too many timing breaks on the uplink. Best I can get in Todmorden is 2 and a bit sigma using just the daytime signal in 3.9 uHz. Not significant at all. Would need at least another 7 days of transmission. -- Paul Nicholson --