Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w2FIr2kO006453 for ; Thu, 15 Mar 2018 19:53:05 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ewXt5-0006y2-Mr for rs_out_1@blacksheep.org; Thu, 15 Mar 2018 18:46:03 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ewXt4-0006xt-QI for rsgb_lf_group@blacksheep.org; Thu, 15 Mar 2018 18:46:02 +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 4.89) (envelope-from ) id 1ewXt2-0002et-3x for rsgb_lf_group@blacksheep.org; Thu, 15 Mar 2018 18:46:01 +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=OGVY/YfeGTRZuawbdkCrOoYGrU21+meVI9k+M96uzeY=; b=vY9dLZhd9IXiV3pdpZkhcunff/ latV/y5I49b9E6K0rpGZJLNT0LhVWygXs+30bvhx3VkcZRiAuveVM8YeM2mKHGLO4igSLWX2QM2ck OSr1EHaZk/1hTAITrQfjmNSWTWld5utzKxlXQ40T0FywsNv88vmpPrZIQwbxI4q0Eftc=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:57264 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1ewXt0-0007rJ-Dd for rsgb_lf_group@blacksheep.org; Thu, 15 Mar 2018 18:45:58 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id C4659400747 for ; Thu, 15 Mar 2018 18:45:57 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <1UQOBAX9Wi.5GpBpi86BpG@optiplex980-pc> <5A9335F5.609@posteo.de> <5AA810EF.5090804@posteo.de> <5AA99C63.3070906@posteo.de> From: Paul Nicholson Message-ID: <1a856f6b-8f8b-268b-b642-ff0ad5846557@abelian.org> Date: Thu, 15 Mar 2018 18:45:57 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <5AA99C63.3070906@posteo.de> Content-Language: en-US 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-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: It's worth a try to normalise the signal. I'll have a look at that at the weekend. It will probably have to be a two-pass script. There are several ways to do this. For example using vtwrite to split the signal file into chunks (eg -G 300), then loop over the chunks running vtfilter | vtstat to measure the level of each chunk in the band 8270 +/- 1500, then vtmix -c to apply the scaling factor. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4ead635eadbaebfaa92cfec77deb715d Subject: Re: VLF: DK7FC > W1VD / K3SIW 8.27 kHz EbNaut - We don't give up! Content-Type: text/plain; charset=utf-8; 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=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 It's worth a try to normalise the signal. I'll have a look at that at the weekend. It will probably have to be a two-pass script. There are several ways to do this. For example using vtwrite to split the signal file into chunks (eg -G 300), then loop over the chunks running vtfilter | vtstat to measure the level of each chunk in the band 8270 +/- 1500, then vtmix -c to apply the scaling factor. Actually, I've just thought of a one-pass solution which doesn't use vtwrite. I won't have time to try it until tomorrow evening. -- Paul Nicholson --