Return-Path: Received: (qmail 7375 invoked from network); 3 Jan 2002 13:00:57 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 3 Jan 2002 13:00:57 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 20258 invoked from network); 3 Jan 2002 13:00:57 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 3 Jan 2002 13:00:57 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16M7Qy-00011e-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 03 Jan 2002 12:57:24 +0000 Received: from hestia.herts.ac.uk ([147.197.200.9]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16M7Qt-00011Z-00 for rsgb_lf_group@blacksheep.org; Thu, 03 Jan 2002 12:57:20 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 16M7Q6-0007Fj-00 for rsgb_lf_group@blacksheep.org; Thu, 03 Jan 2002 12:56:30 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 16M7Q5-0003Vl-00 for rsgb_lf_group@blacksheep.org; Thu, 03 Jan 2002 12:56:29 +0000 Message-ID: <5.1.0.14.0.20020103123454.00a8dfa8@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Thu, 03 Jan 2002 12:56:11 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" Subject: Re: LF: Frequency calibration In-reply-to: <02010220105700.01270@base> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: At 20:10 02/01/2002 +0100, you wrote: >I'm trasmitting qrss 90 sec in low power on 135.921. >Is someone in Europe is receiving, please tell me about accuracy of >frequency calibration and stability. > > > >'73 , Valerio Dear Valerio, Between about 2000 and 2300, your QRG cycled up and down between about 135.921 +0.09Hz and +0.13Hz - I reckon my measurement error will be within 0.01Hz. The drift seemed to be synchronised with the symbols being transmitted, so perhaps a thermal effect? Cheers, Jim Moritz 73 de M0BMU