Return-Path: Received: (qmail 27935 invoked from network); 28 Jan 2002 17:51:05 -0000 Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 28 Jan 2002 17:51:05 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 1154 invoked from network); 28 Jan 2002 17:51:06 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 28 Jan 2002 17:51:06 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16VFr2-00005C-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 28 Jan 2002 17:46:04 +0000 Received: from e1.ny.us.ibm.com ([32.97.182.101]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16VFr0-000054-00 for rsgb_lf_group@blacksheep.org; Mon, 28 Jan 2002 17:46:03 +0000 Received: from northrelay01.pok.ibm.com (northrelay01.pok.ibm.com [9.117.200.21]) by e1.ny.us.ibm.com (8.9.3/8.9.3) with ESMTP id MAB320088 for ; Mon, 28 Jan 2002 12:41:33 -0500 Received: from usa.net (ss3.bld.socks.ibm.com [9.14.4.68]) by northrelay01.pok.ibm.com (8.11.1m3/NCO v5.01) with ESMTP id g0SHiXv162640 for ; Mon, 28 Jan 2002 12:44:35 -0500 Message-ID: <3C558DEA.3E56D04C@usa.net> Date: Mon, 28 Jan 2002 18:44:10 +0100 From: "Alberto di Bene" X-Mailer: Mozilla 4.79 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: LF: Re: Frequency standards for LF. The next generation References: <7D653C9C42F5D411A27C00508BF8803DCB9983@pdw-mail-r1.dstl.gov.uk> <3C558411.8C3FA7AF@virgin.net> 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: Stewart Bryant wrote: > Maybe I am missing something here, (and I am certainly not trying > to detract from an excellent piece of work) but couldn't you also take > the one second markers from MSF using an AM receiver, and drive > your circuit with that? > > Related to that you might also be able to source the 1 sec pulses > from a partially dissassembled MSF (or DCF77) clock. Probably the missing pulse every minute makes things more complicated... But I leave to Andy to give the correct answer. 73 Alberto I2PHD