Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 096FA380000D1; Sun, 2 Oct 2011 12:36:39 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RAP0x-0006XP-7W for rs_out_1@blacksheep.org; Sun, 02 Oct 2011 17:35:43 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RAP0w-0006XG-67 for rsgb_lf_group@blacksheep.org; Sun, 02 Oct 2011 17:35:42 +0100 Received: from filter02.i-online.fr ([195.200.78.9]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RAP0t-0004BP-Uy for rsgb_lf_group@blacksheep.org; Sun, 02 Oct 2011 17:35:41 +0100 Received: from smtp.qtxt.dns-iol.com ([195.200.78.13]) by filter02.i-online.fr (IceWarp 10.2.2) with ESMTP (SSL) id LAL24420 for ; Sun, 02 Oct 2011 18:35:20 +0200 Received: (qmail 32336 invoked by uid 507); 2 Oct 2011 18:35:27 +0200 Received: from unknown (HELO ?192.168.1.101?) (john.rabson@numeo.fr@217.67.155.178) by smtp.qtxt.dns-iol.com with SMTP; 2 Oct 2011 18:35:27 +0200 Mime-Version: 1.0 (Apple Message framework v1084) From: John Rabson X-Priority: 3 (Normal) In-Reply-To: Date: Sun, 2 Oct 2011 18:35:31 +0200 Message-Id: References: To: rsgb_lf_group@blacksheep.org X-Mailer: Apple Mail (2.1084) X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,MAILTO_TO_SPAM_ADDR=0.276 Subject: Re: ***CECI EST UN SPAM*** RE: LF: Ferrite RX antennas Content-Type: text/plain; charset=us-ascii 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=1.1 required=5.0 tests=MAILTO_TO_SPAM_ADDR 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: 0:2:395061664:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60584e88931707ff X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Very cold! The lowest temperature I ever worked with was that of dry = ice (about -78C?) =20 73 John On 2 Oct 2011, at 08:45CEST, wrote: > Yes , >=20 > 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. >=20 > 73 >=20 > Victor