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: INFN-TO: mailn 1233; Body=3 Fuz1=3 Fuz2=3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id v659PXVk009036 for ; Wed, 5 Jul 2017 11:25:34 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dSgVP-0006NB-NI for rs_out_1@blacksheep.org; Wed, 05 Jul 2017 10:21:55 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dSgVP-0006N2-Bh for rsgb_lf_group@blacksheep.org; Wed, 05 Jul 2017 10:21:55 +0100 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1dSgVM-0000ZP-3G for rsgb_lf_group@blacksheep.org; Wed, 05 Jul 2017 10:21:54 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 2F0AC20FE3 for ; Wed, 5 Jul 2017 11:21:50 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3x2b3c5Rj9z10JK for ; Wed, 5 Jul 2017 11:21:48 +0200 (CEST) Message-ID: <595CAFAC.8000507@posteo.de> Date: Wed, 05 Jul 2017 11:21:48 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <15d09838da5-5c79-d873@webprd-a42.mail.aol.com> In-Reply-To: X-Scan-Signature: 7001055fa59a9c23b9831ea6d317a074 Subject: Re: VO1NA on LF: Content-Type: text/plain; charset=ISO-8859-15; 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: 12175 Hi Joe, Am 05.07.2017 01:04, schrieb jcraig@mun.ca: > Hi Markus, > > The oscillator is still undisciplined -- much like your's truly. > The carrier is still on with 1/3 A RF. I was considering getting > a gps module until Stefan reported on his odyssey! Don't understand me wrong Joe, the problems that i have with my GPS module is just when it (actually the antenna, not the module) is located very close the the board of the octo-soundcard. In the past i used a USB stereo soundcard and the GPS mdule in the same short distance and i never observed problems like that. So sadly one must call the octo-soundcard a noise generator in the GHZ range, which affects GPS and WLAN, at least in a distance of a few 10 cm. But even that is no problem, just separate the GPS antenna 1m or more from the module, as well as the USB-WLAN stick, then it works. I ordered some components for my portable VLF/ULF receiver which allows to use a separate GPS antenna: https://www.amazon.de/gp/product/B01BML4XMQ and https://www.amazon.de/gp/product/B011Z7EEL2 It will take weeks until it is delivered. So meanwhile i temporary separated the whole module+antenna from the Raspi, about 1m distance is fine to achieve GPS reception again. BTW i am using these modules since years without problems. My accurate LF/VLF reception/transmission is based on these GPS modules. I never used these Rb oscillators for example. So give it a try!!! :-) 73, Stefan