Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 27192380000AC; Sun, 2 Oct 2011 02:46:45 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RAFoA-0004ix-4w for rs_out_1@blacksheep.org; Sun, 02 Oct 2011 07:45:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RAFo9-0004io-K3 for rsgb_lf_group@blacksheep.org; Sun, 02 Oct 2011 07:45:53 +0100 Received: from smtp10.online.nl ([194.134.42.55]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RAFo7-0000Nc-5o for rsgb_lf_group@blacksheep.org; Sun, 02 Oct 2011 07:45:53 +0100 Received: from smtp10.online.nl (localhost [127.0.0.1]) by smtp10.online.nl (Postfix) with ESMTP id 3F21640198 for ; Sun, 2 Oct 2011 08:45:45 +0200 (CEST) Received: from pa3fnytrqxpddu (s529d275f.adsl.wanadoo.nl [82.157.39.95]) by smtp10.online.nl (Postfix) with SMTP for ; Sun, 2 Oct 2011 08:45:45 +0200 (CEST) From: To: Date: Sun, 2 Oct 2011 08:45:45 +0200 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 In-Reply-To: Importance: Normal X-Online-Scanned: by Cloudmark authority (on smtp10.online.nl) X-Spam-Score: 0.8 (/) X-Spam-Report: autolearn=disabled,MAILTO_TO_SPAM_ADDR=0.276,NO_REAL_NAME=0.55 Subject: RE: ***CECI EST UN SPAM*** RE: LF: Ferrite RX antennas Content-Type: text/plain; charset="us-ascii" 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=2.2 required=5.0 tests=FROM_ENDS_IN_NUMS, MAILTO_TO_SPAM_ADDR,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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:386910976:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40844e8808d534bd X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Yes , hf is used for more things than amateur radio communication.The filters are used to read out a infrared detector-arrey(freq multiplexing).Workingtemp of detector,filters and preamp is 50 mK.(detectors and squid preamp don't work at all at higher temp).Very strange techniques but they do work. 73 Victor -----Oorspronkelijk bericht----- Van: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]Namens John Rabson Verzonden: zaterdag 1 oktober 2011 14:56 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: ***CECI EST UN SPAM*** RE: LF: Ferrite RX antennas On 1 Oct 2011, at 08:59CEST, wrote: > Hi Stefan, > > at the institute I am working we are using lithographic superconducting coils with special NPO capacitors In the range from 100KHz to 5MHz Q up to 5000 is optained.... > > > 73 > > Victor Onnes-tly? John F5VLF