Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 266E43800008D; Wed, 19 Oct 2011 20:22:21 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RGgNV-0001yF-KD for rs_out_1@blacksheep.org; Thu, 20 Oct 2011 01:20:57 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RGgNU-0001y6-Us for rsgb_lf_group@blacksheep.org; Thu, 20 Oct 2011 01:20:56 +0100 Received: from mail-bw0-f43.google.com ([209.85.214.43]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RGgNS-0000Da-Pf for rsgb_lf_group@blacksheep.org; Thu, 20 Oct 2011 01:20:56 +0100 Received: by bke17 with SMTP id 17so4895578bke.16 for ; Wed, 19 Oct 2011 17:20:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=dZ5IGXF+zfi3UijtJOjJEQ5s3uBTUzaA5WFJZK6gB1M=; b=sUKn2rTkjGV4SZeX3KZHkPw3V+wiAuiUjvvbIAXTNJA0Az59n0UUGyuKgL5O+0Jz3i 0ZV6JbT9iN2tL7xp+N3Z/C/ZJntzaGwk3T9gSOmKEdi8E7G5CUXjUlnP3ZUaSyrlD4Pj m9oX+JYU4+r2KRKDlTygWiyTAYmrqOcKHrZMk= MIME-Version: 1.0 Received: by 10.204.140.202 with SMTP id j10mr6324737bku.66.1319070048739; Wed, 19 Oct 2011 17:20:48 -0700 (PDT) Received: by 10.204.173.2 with HTTP; Wed, 19 Oct 2011 17:20:48 -0700 (PDT) In-Reply-To: <4E9F01CB.2050302@iup.uni-heidelberg.de> References: <4E9F01CB.2050302@iup.uni-heidelberg.de> Date: Thu, 20 Oct 2011 11:20:48 +1100 Message-ID: From: Dimitrios Tsifakis To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: OK2BVG_8970 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:459952992:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m285.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d404a4e9f69bd74c9 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hello VLF enthusiasts, I am interested in joining the VLF party. I have already tested a nice audio amplifier which will produce 100W RMS on each channel and is easy to bridge. I haven't given a lot of thought on the circuitry to connect the sound card to some sort of active antenna. Are there any suggestions on how to proceed? Also, are you using externally clocked soundcards? I suppose, once you get into the uHz territory, having an external super stable clock feeding the soundcard is a must? 73, Dimitris VK1SV 2011/10/20 Stefan Sch=E4fer : > Hello Lubos, > > Excellent! We're looking forward to your signal :-) > > Just in time my VLF grabber > (http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html) is > available again, after a PSU failure... Hope it holds now. > GPS lock is active and checked. > > Unfortunately the wind conds were not good in the last wekends so i still > have to wait for my 12th exp... > > Good luck you Dreamer :-) > > 73, Stefan/DK7FC > > Am 19.10.2011 17:47, schrieb Lubos OK2BVG: > > Hello VLF! > I will be testing my new Rubidium frequency reference tomorrow: > ***INFO*** > Date: 20.10.2011 > Time: 08:00 UT - 11:00 UT > Antenna: Marconi L 24m up + 220m top load > PA: 120W > Identification: K > Mode: DFCW 3000 > FRQ: 8970.040 (+/- some few mHz :-) > Shift: 10mHz > I hope, the propagation will be good! > Lubos, OK2BVG