Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v1QKiEtW009539 for ; Sun, 26 Feb 2017 21:44:16 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ci5bt-0002zb-NQ for rs_out_1@blacksheep.org; Sun, 26 Feb 2017 20:40:01 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ci5bt-0002zN-By for rsgb_lf_group@blacksheep.org; Sun, 26 Feb 2017 20:40:01 +0000 Received: from smtp-out-2.talktalk.net ([62.24.135.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1ci5bq-0006my-O4 for rsgb_lf_group@blacksheep.org; Sun, 26 Feb 2017 20:40:00 +0000 Received: from [127.0.0.1] ([78.150.127.92]) by smtp.talktalk.net with SMTP id i5bpcLgmu46SJi5bpc9iEJ; Sun, 26 Feb 2017 20:39:57 +0000 X-Originating-IP: [78.150.127.92] X-Spam: 0 X-OAuthority: v=2.2 cv=CItoZljD c=1 sm=1 tr=0 a=ltISPUkTCPavytHNowa71g==:117 a=ltISPUkTCPavytHNowa71g==:17 a=N659UExz7-8A:10 a=J83lZ16c02FcA3QQEM8A:9 a=pILNOxqGKmIA:10 To: rsgb_lf_group@blacksheep.org References: <58B29B10.6020906@posteo.de> <3fe6768c-70d8-1832-7849-58f837ef3cff@psk31.plus.com> From: g3zjo Message-ID: Date: Sun, 26 Feb 2017 20:39:58 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: X-Antivirus: avast! (VPS 170226-0, 26/02/2017), Outbound message X-Antivirus-Status: Clean X-CMAE-Envelope: MS4wfC5A9gEghl2M21dxtHhs1dGKJwfc0c8OjLiSRJrHjv5eeVoSrpfP7DVNeyx8kQvrSzdeVlSa/h0si2InqiPdbOOUrAjwqG6PDv5fCSgNxhh4wXgO90Ha 8J2ojArvn9uVqh8bral7b9hCYTJRvRys6on5sPslEc5mEoxChDrqsFYLDZ5YysPStq4wJt45ZN+hIg== X-Scan-Signature: 1f795a2ee1ecd56682b47ad11969b3d3 Subject: Re: LF: ebnaut & speclab question Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit 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 X-Scanned-By: MIMEDefang 2.75 Status: RO X-Status: X-Keywords: X-UID: 10726 On 26/02/2017 19:23, Jacek Lipkowski wrote: > i use a very cheap uBlox NEO-6M gps module. the 1pps pulse has been > shortened to 1ms, and i haven't disabled SBAS (which should further > help with jitter, but i forgot to do it). I have a uBlox UP501 it's not good but not as bad as some for jitter. > > it works very well with vlfrx-tools (haven't looked at the code, but > probably Paul included some magic code to average out jitter). Speclabs magic interpolates the 1PPS pulse but I can still see jitter from the modules that have it, I was wondering if would cause problems. I had to work on my Trimble in order to use it but it is solid. 73 Eddie G3ZJO