Return-Path: <owner-rsgb_lf_group@blacksheep.org> X-Spam-DCC: paranoid 1481; 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=-0.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, 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 uA3DQoc6028164 for <sq5bpf@lipkowski.org>; Thu, 3 Nov 2016 14:26:50 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1c2Hyi-0005Xa-4e for rs_out_1@blacksheep.org; Thu, 03 Nov 2016 13:22:48 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1c2Hyh-0005XR-OK for rsgb_lf_group@blacksheep.org; Thu, 03 Nov 2016 13:22:47 +0000 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from <selberdenken@posteo.de>) id 1c2Hyf-00071I-Ag for rsgb_lf_group@blacksheep.org; Thu, 03 Nov 2016 13:22:46 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 5DD2320A34 for <rsgb_lf_group@blacksheep.org>; Thu, 3 Nov 2016 14:22:40 +0100 (CET) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3t8ly81mybz103w for <rsgb_lf_group@blacksheep.org>; Thu, 3 Nov 2016 14:22:40 +0100 (CET) Message-ID: <581B3A1F.5060609@posteo.de> Date: Thu, 03 Nov 2016 14:22:39 +0100 From: DK7FC <selberdenken@posteo.de> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org> X-Scan-Signature: 0b2d339ae1d48966556dfb6ad64e2bce Subject: LF: Smart noise cancelling?!? Content-Type: text/plain; charset=ISO-8859-15; 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: 9368 Hi all, Last night i thought a bit about noise cancelling on LF/VLF. Depending on the band and distance and strength of the QRN, different settings for a noise blanker are used, or optimal. Different rise times, treshold levels and so on. I thought about propagation changes and different shapes of QRN bursts in the time domain, requiring different blanker settings. Is it possible to program an 'intelligent' noise blanking system that is evaluating the input spectrum, looking at the shape/type of a sferic and automatically sets individual dynamic noise blanker parameters for each burst? Or do i miss something here? Just a thought. I guess i'm not the first one who has this idea :-) 73, Stefan