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 vB7HHq2m001956 for ; Thu, 7 Dec 2017 18:17:55 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eMzjf-0003kq-M3 for rs_out_1@blacksheep.org; Thu, 07 Dec 2017 17:13:23 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eMzjf-0003kg-8m for rsgb_lf_group@blacksheep.org; Thu, 07 Dec 2017 17:13:23 +0000 Received: from resqmta-ch2-07v.sys.comcast.net ([2001:558:fe21:29:69:252:207:39]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eMzjc-0002J1-9E for rsgb_lf_group@blacksheep.org; Thu, 07 Dec 2017 17:13:22 +0000 Received: from resomta-ch2-06v.sys.comcast.net ([69.252.207.102]) by resqmta-ch2-07v.sys.comcast.net with ESMTP id MzjNepYdxnq82MzjYeioAb; Thu, 07 Dec 2017 17:13:16 +0000 X-DKIM-Result: Domain=comcast.net Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1512666796; bh=SIn7jIVQXgi38GrivUoEZ+wRMsGXsO3ZryP3TD3ZxFA=; h=Received:Received:From:To:Subject:Date:Message-ID:MIME-Version: Content-Type; b=YVTj8Tn3/Dp4xSHv0EInIVpk/i4JH/eWWUrFIPWchq9Lu6EBwP6nvMSlgkWMkYMyg 5b/5jpAucbHJYh0fnOX5QOgFBO1IfZ2d0h5S8hVEaot1uSKyfhzaS3EUBpJZtCrjr9 2BgqkUjctQG8GlkCgQ3t2xTABbfmny23HZbSwjczFnGoK1YHlljLjqoIZEdXeTXrUN Cwou+EXu5TJLXF4sCKtgCk9NncSuzQwmSe7jhAlNzsvzp/of1TZhi7sGvbd+DJzLDJ yskv9m+PrNE5x/PLsFkN/UJo3+L7ic1021WIjNI2JSpHeNduSVAhyKBu4OwsHd0SQ5 Pi7j+DvxETOYQ== Received: from Owner ([IPv6:2601:140:8500:7f9f:78f6:dd:b547:d008]) by resomta-ch2-06v.sys.comcast.net with SMTP id MzjVeHPFUCxytMzjVeiDt1; Thu, 07 Dec 2017 17:13:15 +0000 From: To: References: <4d96a9d4-5f22-7650-872b-6344e9aea8e3@abelian.org> <5A19FF75.7080801@posteo.de> <5A1FFE7C.9050703@posteo.de> <5A226B0C.3080701@posteo.de> <579355A36AEE9D4FA555C45D556003AB9AAB0EB9@servigilant.vigilant.local> <5A25C304.3050607@posteo.de> <5A271218.9040803@posteo.de> <5A282BF9.4050409@posteo.de> In-Reply-To: Date: Thu, 7 Dec 2017 12:13:04 -0500 Message-ID: <00ed01d36f7e$aa6bf2c0$ff43d840$@comcast.net> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQMcfBPTxY+k5qd6rWysCs3Lx7yy3QG5vOvIAm1P1iUB1iCD1gJFU3f2AewoaLwCwMK/KQLehgd4AbZlmh8CXxTHIAHbOkn1AkLV1KkCfr7LPQE2oLaxApYxE+6fs5ZBoA== Content-Language: en-us X-CMAE-Envelope: MS4wfPdzi10EK4jp5fJZHHShw61QJRdFzxJjAIwEazBXAyguZOAkl/vWeEmOFvdxpuWcJ7nm0v6oeauFJCvIXmW3rFTAyRiPE9bWOrgjsLYTZ/V+f6xixLmo Z3N7wlQqESSd7TM0pXWqW0Fj/GMyos7wPNQ= 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: Based on Marcus' request for all-day carrier at 17470.1000 Hz and Paul's report of -38.55 dB in 1Hz in Forest, Virginia, I'll keep a SpecLab window open at 17470.1000. I installed a receiver with GPSDO at a new lower-noise* permanent location in Arlington, VA two days ago but it did not occur to me that the new lower noise level might accommodate detection of Stefan's 17470.1000 Hz signal. * (15 dB lower noise so far, additional reduction likely this week) [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (hvanesce[at]comcast.net) -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 3f8d74a8c70dd416d0a3a1dbcb9bb89f Subject: RE: VLF: First VLF detection DL > EA Content-Type: text/plain; charset="utf-8" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=NO_REAL_NAME 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by klubnl.pl id vB7HHq2m001956 Based on Marcus' request for all-day carrier at 17470.1000 Hz and Paul's report of -38.55 dB in 1Hz in Forest, Virginia, I'll keep a SpecLab window open at 17470.1000. I installed a receiver with GPSDO at a new lower-noise* permanent location in Arlington, VA two days ago but it did not occur to me that the new lower noise level might accommodate detection of Stefan's 17470.1000 Hz signal. * (15 dB lower noise so far, additional reduction likely this week) -38.55 dB in 1Hz would seem to suggest 6 dB in 8 hours using EbNaut, but I haven't tried EbNaut and wonder (if the new lower-noise Arlington location has noise and path loss similar to that of Forest, VA) how much lower than 6 dB the SNR would be with an all-day carrier (instead of with EbNaut). Does it seem worthwhile to perform 8-hour integrations for (and save raw data for) Stefan's 17470.1000 Hz carrier signals in the new Arlington, VA location? Any other suggestions for near-term detection of Stefan's 17470.1000 Hz carrier signals in Arlington, VA? If EbNaut is strongly suggested, is Windows OS incompatible? Long learning curve for an EbNaut newcomer? 73, Jim AA5BW -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Paul Nicholson Sent: Wednesday, December 6, 2017 4:49 PM To: rsgb_lf_group@blacksheep.org Subject: Re: VLF: First VLF detection DL > EA > How far could this signal travel! We are missing > RX stations everywhere! Forest, Virginia, is reporting Eb/N0 = -7.5dB on the 4 char transmission. That's -38.55 dB in 1Hz. Distance is 6817 km. Recommend starting a bit later, say 00:00 or 01:00, and maybe we do some stacking too? -- Paul Nicholson --