Return-Path: X-Spam-DCC: paranoid 1102; 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=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO 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 t2MLn9YB007021 for ; Sun, 22 Mar 2015 22:49:09 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1YZnhO-0007GL-Qq for rs_out_1@blacksheep.org; Sun, 22 Mar 2015 21:46:22 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1YZnhO-0007GC-FW for rsgb_lf_group@blacksheep.org; Sun, 22 Mar 2015 21:46:22 +0000 Received: from out48-ams.mf.surf.net ([145.0.1.48]) by relay1.thorcom.net with esmtps (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85) (envelope-from ) id 1YZnhM-0005R7-TJ for rsgb_lf_group@blacksheep.org; Sun, 22 Mar 2015 21:46:21 +0000 Received: from smtps.utwente.nl (smtp-o2.utsp.utwente.nl [130.89.2.10]) by outgoing2-ams.mf.surf.net (8.14.4/8.14.4/Debian-4) with ESMTP id t2MLkJkb024272 for ; Sun, 22 Mar 2015 22:46:19 +0100 Received: from utwks06146.ad.utwente.nl (utwks06146.ad.utwente.nl [130.89.13.213]) by smtps.utwente.nl (8.13.8) with ESMTP id t2MLkJq6020942 for ; Sun, 22 Mar 2015 22:46:19 +0100 Received: by utwks06146.ad.utwente.nl (Postfix, from userid 17643373) id 4EDA045C0D5D; Sun, 22 Mar 2015 22:46:19 +0100 (CET) Date: Sun, 22 Mar 2015 22:46:19 +0100 From: Pieter-Tjerk de Boer To: rsgb_lf_group@blacksheep.org Message-ID: <20150322214619.GB21016@cs.utwente.nl> Mail-Followup-To: rsgb_lf_group@blacksheep.org References: <20150320221323.GC4255@cs.utwente.nl> <550D5AD4.8070201@freenet.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <550D5AD4.8070201@freenet.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Bayes-Prob: 0.0001 (Score 0, tokens from: utwente-out:default, base:default, @@RPTN) X-CanIt-Geo: ip=130.89.2.10; country=NL; region=Provincie Overijssel; city=Enschede; latitude=52.2183; longitude=6.8958; http://maps.google.com/maps?q=52.2183,6.8958&z=6 X-CanItPRO-Stream: utwente-out:default (inherits from utwente:default,base:default) X-Canit-Stats-ID: 0vO6JKjcr - 3c919bc375dc - 20150322 (trained as not-spam) X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 X-Scanned-By: CanIt (www . roaringpenguin . com) X-Scan-Signature: 7aa9ad08848e488e22e0ff1d71f4ef1d Subject: Re: LF: eclipse observations on Twente WebSDR Content-Type: text/plain; charset=us-ascii 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 Status: O X-Status: X-Keywords: X-UID: 2763 On Sat, Mar 21, 2015 at 12:49:40PM +0100, wolf_dl4yhf wrote: > The frequency of that unstable QRM just below 500 kHz seems to > depend on the sunlight intensity ... Interesting! Of course, I had seen the QRM, but somehow didn't notice its frequency also had an eclipse-dip. > free-running solar cell inverter in the neighbourhood, That seems unlikely since the QRM wasn't there today, even though today was sunny here. > or the AC mains voltage itself was affected ? Could be... I didn't measure it... 73, Pieter-Tjerk, PA3FWM