Return-Path: Received: (qmail 14390 invoked from network); 1 Jan 2002 15:49:53 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 1 Jan 2002 15:49:53 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 1402 invoked from network); 1 Jan 2002 15:49:52 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 1 Jan 2002 15:49:52 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16LR9E-0002eF-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 01 Jan 2002 15:48:16 +0000 Received: from mta01.btfusion.com ([62.172.195.11] helo=btclick.com) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16LR9D-0002eA-00 for rsgb_lf_group@blacksheep.org; Tue, 01 Jan 2002 15:48:15 +0000 Received: from virgin.net ([213.121.109.26]) by btclick.com (Netscape Messaging Server 4.05) with ESMTP id GP9NUA04.O3P for ; Tue, 1 Jan 2002 15:46:58 +0000 Message-ID: <3C31D95B.4423D729@virgin.net> Date: Tue, 01 Jan 2002 15:44:27 +0000 From: "Stewart Bryant" X-Mailer: Mozilla 4.76 [en]C-CCK-MCD (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: GPS-based Frequency Standard References: <5.1.0.14.0.20020101114249.01df2650@pop.tiscalinet.it> 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: > > Other possibilities are: > 1) the HP 10811A alone. An excellent oscillator, and you may expect > some parts in 10^-8 per year from a good unit operated continuously. > But keep a spare unit... I've seen some of them "die" of quartz > inactivity. And you must have access to a primary standard for > tuning and checking it. We may have some of these at CARC. Stewart G3YSX