Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w4K4Fpbs027353 for ; Sun, 20 May 2018 06:15:52 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1fKFYx-0004CF-AC for rs_out_1@blacksheep.org; Sun, 20 May 2018 05:03:15 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1fKFYp-0004C6-Ng for rsgb_lf_group@blacksheep.org; Sun, 20 May 2018 05:03:07 +0100 Received: from porthos.netcom.co.uk ([217.72.171.73]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1fKFYn-0000wU-26 for rsgb_lf_group@blacksheep.org; Sun, 20 May 2018 05:03:06 +0100 X-DKIM-Result: Domain=abelian.org Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=euKtkQ6qwT9jMsweuk8gZUHeS+qUrYZVsvZQ+NhtNvI=; b=SoCXRrivfwAEeJKHdNlMF96OcU ETSTxNcqddtMOntoUrJBlCh6cg2qjmRcNXWiYkDDfZnMIL6+5dNsy0fLAG59q2xhd9sqXk6fC2I4e G/N1ttdfs3j3tsRVTzVlDrssKebDjbKiFTTg0oM+dMYaTVaI7k2WAtqjDrLY1slhzBjI=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:52280 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1fKFYl-0001TN-3R for rsgb_lf_group@blacksheep.org; Sun, 20 May 2018 05:03:03 +0100 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 41F79400068 for ; Sun, 20 May 2018 04:03:02 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <74925587-718a-677c-6b18-09aa11bfdd05@abelian.org> <5B002F8B.5050403@posteo.de> From: Paul Nicholson Message-ID: <8114f120-c462-5c6b-869b-255090eb1729@abelian.org> Date: Sun, 20 May 2018 04:03:02 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <5B002F8B.5050403@posteo.de> Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - porthos.netcom.co.uk X-AntiAbuse: Original Domain - blacksheep.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - abelian.org X-Get-Message-Sender-Via: porthos.netcom.co.uk: authenticated_id: catchall@abelian.org X-Authenticated-Sender: porthos.netcom.co.uk: catchall@abelian.org X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: I'm pleased to see that vttime -m edge+ is doing its job, it hasn't had a lot of testing. Also, using -m pulse+ on a university installation and it is running mostly at less than 20nS jitter on a 10uS pulse at 96k/sec, albeit on a posh looking GPS. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 5c1f37c04fc013ebbc2288fd3791d043 Subject: Re: LF: Version 0.9b vlfrx-tools Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 I'm pleased to see that vttime -m edge+ is doing its job, it hasn't had a lot of testing. Also, using -m pulse+ on a university installation and it is running mostly at less than 20nS jitter on a 10uS pulse at 96k/sec, albeit on a posh looking GPS. > vttime: unreliable PPS interval 47999.959405 - skipped > vttime: wild PPS pulse interval 32425.608608 - skipped > vttime: invalid phase slope - skipped The NMEA messages shouldn't get in the way, vttime only looks at a narrow window containing the leading PPS edge and the NMEA will be coming in well after that. vttime has got better at recognising bad pulses and ignoring them. it will hold-over quite happily on missing or damaged GPS pulses. -- Paul Nicholson --