Return-Path: Received: (qmail 18650 invoked from network); 6 Jan 2001 06:02:21 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 6 Jan 2001 06:02:21 -0000 Received: (qmail 10591 invoked from network); 6 Jan 2001 05:57:00 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 6 Jan 2001 05:57:00 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14EmAB-0001CG-00 for rsgb_lf_group-outgoing@blacksheep.org; Sat, 06 Jan 2001 05:45:11 +0000 Received: from imo-r08.mx.aol.com ([152.163.225.8]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14EmA9-0001CB-00 for rsgb_lf_group@blacksheep.org; Sat, 06 Jan 2001 05:45:10 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from WarmSpgs@aol.com by imo-r08.mx.aol.com (mail_out_v28.35.) id l.f7.652f049 (3974) for ; Sat, 6 Jan 2001 00:44:14 -0500 (EST) From: WarmSpgs@aol.com Message-ID: Date: Sat, 6 Jan 2001 00:44:13 EST Subject: Re: LF: RE: Freq stability To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: AOL 4.0 for Windows 95 sub 120 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In a message dated 1/4/01 3:42:49 AM Eastern Standard Time, ACTALBOT@dera.gov.uk writes: << Can you get German satellite TV over there ? If so, my understanding is that in D land TV sync is used to disseminate the official time and frequency standard, and this extends to the ZDF satellite transmission too. If so you will have Caesium accuracy and a nationally traceable standard. >> That would be tremendously handy. Where I live, I doubt that we have direct access to the signal. A little too low on (or below) the horizon. Wish we did have access, though; 15625 being 1MHz divided by 64 is a beautiful thing! In the American system, our sync-to-standard-frequency ratios are a little messier. The color burst frequency is defined as 63/88ths of precisely 5MHz, with horizontal sync being 2/455ths of color frequency. Lovely combination of ratios, eh? 73, John KD4IDY