Return-Path: Received: (qmail 28535 invoked from network); 12 Jan 2001 10:32:44 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 12 Jan 2001 10:32:44 -0000 Received: (qmail 6020 invoked from network); 12 Jan 2001 10:27:15 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 12 Jan 2001 10:27:15 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14H1Ko-0004uy-00 for rsgb_lf_group-outgoing@blacksheep.org; Fri, 12 Jan 2001 10:21:26 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from d06lmsgate-2.uk.ibm.com ([195.212.29.2]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14H1Kn-0004rv-00 for rsgb_lf_group@blacksheep.org; Fri, 12 Jan 2001 10:21:25 +0000 Received: from d06relay02.portsmouth.uk.ibm.com (d06relay02.portsmouth.uk.ibm.com [9.166.84.148]) by d06lmsgate-2.uk.ibm.com (1.0.0) with ESMTP id KAA81574 for ; Fri, 12 Jan 2001 10:06:27 GMT Received: from usa.net (ss2.bld.socks.ibm.com [9.14.4.67]) by d06relay02.portsmouth.uk.ibm.com (8.8.8m3/NCO v4.95) with ESMTP id KAA143752 for ; Fri, 12 Jan 2001 10:20:36 GMT X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3A5EDA43.EFA18D18@usa.net> Date: Fri, 12 Jan 2001 11:19:47 +0100 From: "Alberto di Bene" Organization: Undisclosed X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: RE:Rugby site References: <65AECDF1F89AD411900400508BFC869F0D750A@pdw-mail-1.dera.gov.uk> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Talbot Andrew wrote: > [snip] > Speculatively of course, this > would be at a frequency in the 60 - 170Hz region - which makes even > amateur 9kHz experiments seem tame. It is stated that in the US there > are lines looking like old fashioned telegraph wires many hundreds > (1000s ?) of km long carrying signals that make fences spark. > [snip] For a comprehensive page on the ELF russian submarine communications system ZEVS at 82 Hz (!) look here : http://web.tiscalinet.it/vlfradio/zevs/zevs.htm 73 Alberto I2PHD