Delivered-To: daveyxm@virginmedia.com Received: by 10.50.237.98 with SMTP id vb2csp99722igc; Wed, 29 Jan 2014 07:19:18 -0800 (PST) X-Received: by 10.194.108.100 with SMTP id hj4mr540500wjb.83.1391008758036; Wed, 29 Jan 2014 07:19:18 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com. [195.171.43.25]) by mx.google.com with ESMTP id o10si1350573wjz.142.2014.01.29.07.19.17 for ; Wed, 29 Jan 2014 07:19:18 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1W8Vxi-00021q-Ov for rs_out_1@blacksheep.org; Wed, 29 Jan 2014 14:17:54 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1W8Vxi-00021h-Bq for rsgb_lf_group@blacksheep.org; Wed, 29 Jan 2014 14:17:54 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1W8Vxg-0002se-71 for rsgb_lf_group@blacksheep.org; Wed, 29 Jan 2014 14:17:53 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id s0TEHoUn001930 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 29 Jan 2014 15:17:50 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id s0TEHoW0010409 for ; Wed, 29 Jan 2014 15:17:50 +0100 Message-ID: <52E90D89.7020209@iup.uni-heidelberg.de> Date: Wed, 29 Jan 2014 15:17:45 +0100 From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= 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 References: <52E7C438.7050205@psk31.plus.com>, <1390936735.43137.YahooMailNeo@web171404.mail.ir2.yahoo.com> In-Reply-To: X-Spam-Score: -1.2 (-) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Ooooh, this is very intersting! :-) Does it mean that i can do VLF experiments at e.g. 18 kHz by generating a VERY distorted 6 kHz signal? The groundwave is at 6 kHz, i.e. below 8.3 kHz and i can assume that the 18 kHz harmonic will not cause interferences to any services operating there!! :-) Horray!! :-) When using a resonant antenna, resonated to 18 kHz, i can even optimise the power losses of the transmitter. [...] Content analysis details: (-1.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: f38d515a9cad1e977fcfe251941a8120 Subject: Re: LF: Below 8.3kHz in the UK freuency allocations Content-Type: text/plain; charset=UTF-8; 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=none 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 Ooooh, this is very intersting! :-) Does it mean that i can do VLF experiments at e.g. 18 kHz by generating a VERY distorted 6 kHz signal? The groundwave is at 6 kHz, i.e. below 8.3 kHz and i can assume that the 18 kHz harmonic will not cause interferences to any services operating there!! :-) Horray!! :-) When using a resonant antenna, resonated to 18 kHz, i can even optimise the power losses of the transmitter. According to https://dl.dropboxusercontent.com/u/19882028/VLF/fig_02_25a.png we should try 12 kHz, eheheeem, i mean 4 kHz, wehere propagation should be best :-) 73, Stefan/DK7FC Am 28.01.2014 22:18, schrieb LZ: > Dave, > > You wrote: > >> ... In other words NO signal must escape that is higher than that 8.3 kHz limit -That is it!! -end of!! Dave >> > No, wrong. > Right: "In other words NO *interfering* signal must escape that is higher than that 8.3 kHz limit..." > > Laura > > Gesandt von mein PettiFogPhone > >