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 wALDIrjk001265 for ; Wed, 21 Nov 2018 14:18:59 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gPSKj-0002it-5P for rs_out_1@blacksheep.org; Wed, 21 Nov 2018 13:14:21 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gPSKi-0002ik-TE for rsgb_lf_group@blacksheep.org; Wed, 21 Nov 2018 13:14:20 +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 4.91_59-0488984) (envelope-from ) id 1gPSKf-0001mR-PU for rsgb_lf_group@blacksheep.org; Wed, 21 Nov 2018 13:14:19 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 22DC62400E6 for ; Wed, 21 Nov 2018 14:14:17 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1542806057; bh=bly6OYX7AcgZc22KEggWjRKcD54T1DhWzz4m8VruSAQ=; h=Date:From:To:Subject:From; b=Bti0oLOpdYF3lirvlpLNJvhdlDqpcLs4ae3acJ1tjTxBZdBMniDtAkND7ShBq1UGH v53wsML6p8XmKJjUQ3pw4za8yHfDG9JuMOeea7pdAZ4AN16twA7dorTpRGfKutvZNw ja5I8IbrXRNChrT/lDAk/o8zCmWjog5V5ILfVKcu7CiV/W5R8Aaifw8XB4FvdULddz 7KC7ZwW9e+ZxW1DreWaQ3A1ofmCro2HoSUXleqiS5kX3vCMbUE6+f9b5m5ygz9hnkc /zhDWTHBD9rg5gIf/jj0W5tzjjRPoe95NUqBXHJuvzubKguGsR/f93ofcA+ancdnPy AJkIAWx1dEyFQ== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 430NMD4fsdz9rxM for ; Wed, 21 Nov 2018 14:14:16 +0100 (CET) Message-ID: <5BF55A28.1060408@posteo.de> Date: Wed, 21 Nov 2018 14:14:16 +0100 From: DK7FC 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" X-Spam-Score: -2.3 (--) 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 @@CONTACT_ADDRESS@@ for details. Content preview: Hi SLF friends, Take a look at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html There, on the 4th image from the top you can see a faint but concentrated trace at 60 Hz. This should be the 60 Hz [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [185.67.36.66 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4ad5f3f1a9241b934aaa5d0e23c9dc57 Subject: SLF: Receiving the American power grid? Content-Type: text/plain; charset=ISO-8859-15; 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=0.0 required=5.0 tests=TO_ADDRESS_EQ_REAL 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 Hi SLF friends, Take a look at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html There, on the 4th image from the top you can see a faint but concentrated trace at 60 Hz. This should be the 60 Hz grid frequency as used in NA and SA. It has been detected in a smaller bandwidth in the past, but from this location on the tree, it is the first time that i see it in 45 mHz FFT bin width. The QRN is very low these days, in that range! 73, Stefan PS: At 16 2/3 Hz you can see the German railway power grid changing its colour, depending on where trains are currently driving.