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 x25MmqY0031456 for ; Tue, 5 Mar 2019 23:48:58 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1h1Ifk-0002WR-US for rs_out_1@blacksheep.org; Tue, 05 Mar 2019 22:36:29 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1h1Ia7-0002Vw-0H for rsgb_lf_group@blacksheep.org; Tue, 05 Mar 2019 22:30:39 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1h1IZl-0003l6-Nr for rsgb_lf_group@blacksheep.org; Tue, 05 Mar 2019 22:30:19 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 5B71716005E for ; Tue, 5 Mar 2019 23:30:15 +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=1551825015; bh=IDRatJ3QmVhazYC3VbrL/TTQNKLTxa75HhHJWOyvRNc=; h=Date:From:To:Subject:From; b=SrK/CldIlXNQuthzIBpSFtZgrr5JQxM2NZMHpnsJbIQduI7nomxKpNhx29u8BA5mD oQgn30dQ37DN5R2v8qu9Bg3AKvolybTeN4H/T02LppRCgIv8XUWa4dSJCZsVlSzU4H HWjo1xeDhFOuOuvt9V2S5vLjHsnYDNINTANMhjrDRVxgiE+qb1zv7UrV1orgKdE6dB fjJ1HyHDaNOmbGa0qTiEgyXXIneLqbxJ9BKDmErMWHbC+NmmQopdDvaXNx7HCqQb74 PLZkD49n2AXLuLl9czZsmqMjHZMBl8cVBSJGvyVC0pIpT6Z8gqlReaiO+mDgq5lAfn kKNt6CjfEoOQg== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 44DWmk3RLDz6tmL for ; Tue, 5 Mar 2019 23:30:14 +0100 (CET) Message-ID: <5C7EF86F.9010704@posteo.de> Date: Tue, 05 Mar 2019 23:30:07 +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 Subject: Re: ELF: Almost touching the ground... | 12.47 Hz References: <5C7AD93E.8010402@posteo.de> <5C7CEF81.5080302@posteo.de> <000201d4d2ce$4aa091c0$dfe1b540$@go2.pl> <5C7EC39A.5070903@posteo.de> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 the administrator of that system for details. Content preview: Hello Jacek, Am 05.03.2019 22:03, schrieb Jacek Lipkowski: > Stefan, did you try contacting any geophysisists in your area? Maybe > they have an ULF receiver, and could give you access to the data No, i didn't. I [...] 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 [185.67.36.65 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record X-Scan-Signature: 3b8620872b19e25fb6f4dfaf1256edc3 X-SA-Exim-Scanned: No; SA Timed out after 180 secs 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 Hello Jacek, Am 05.03.2019 22:03, schrieb Jacek Lipkowski: > Stefan, did you try contacting any geophysisists in your area? Maybe > they have an ULF receiver, and could give you access to the data No, i didn't. I doubt that they have sensitive receivers with the necessary signal stability. Also the RX must watch for days without an interruption and the distance must not be much higher than 5 km. BTW did you receive your 8270 Hz signals on your own receiver in Warsaw? 73, Stefan > > jacek > > On Tue, 5 Mar 2019, DK7FC wrote: > >> Date: Tue, 05 Mar 2019 19:44:42 +0100 >> From: DK7FC >> Reply-To: rsgb_lf_group@blacksheep.org >> To: rsgb_lf_group@blacksheep.org >> Subject: ELF: Almost touching the ground... | 12.47 Hz >> >> Hi ELF friends, >> >> During the last 2 weeks i've done another experiment on ELF, this >> time on 12.47 Hz, the 24 Mm band (wavelength 24057 km). Again i've >> crossed the local distance of 3.5 km. That's the lowest frequency >> i've ever been and it feels like i can see the ground already :-) >> The dimensions of everything down there are extreme. I've integrated >> 227 hours of a carrier transmission into one spectrum peak, it is >> shown in the attachment in 1.25 uHz. This carrier could have >> transferred an EbNaut message of nearly 100 characters. >> >> The ERP was 50 attowatt or -163 dBW and the antenna current was 170 >> uA only, despite about 5 kV antenna voltage. >> >> I'm now trying to put a step below 10 Hz but the RX antenna becomes >> less efficient with each Hz. >> >> 73, Stefan >> >