Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u1JEKYJV022471 for ; Fri, 19 Feb 2016 15:20:34 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aWlpL-0004yl-5J for rs_out_1@blacksheep.org; Fri, 19 Feb 2016 14:14:35 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aWlpK-0004yY-OT for rsgb_lf_group@blacksheep.org; Fri, 19 Feb 2016 14:14:34 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1aWloT-00035H-5X for rsgb_lf_group@blacksheep.org; Fri, 19 Feb 2016 14:14:33 +0000 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id 9DFE520A9A for ; Fri, 19 Feb 2016 15:13:26 +0100 (CET) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3q6FHp1ZTVz5vN8 for ; Fri, 19 Feb 2016 15:13:26 +0100 (CET) Message-ID: <56C72305.4000500@posteo.de> Date: Fri, 19 Feb 2016 15:13:25 +0100 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: <0316b41f8f3e4ce4adbe1cd88daa2063@kabelmail.de> <56C4427B.3020402@abelian.org> In-Reply-To: <56C4427B.3020402@abelian.org> X-Scan-Signature: 4e3b1488273adbbe9757d6bdd5adf219 Subject: Re: VLF: 8270.000 Hz and forest VLF grabber preparations... Content-Type: text/plain; charset=ISO-8859-1; 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 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 6890 Hi Paul, Uwe, VLF, Am 17.02.2016 10:50, schrieb Paul Nicholson: > For now, stay with 16 bit CRC and use list length 1000 > or less for 2 chars. > -- > Paul Nicholson > -- RR. I set the list length to 1000 but still get NI. But just a single time. But the false decodes become rare. I will now go through all txt files hopefully containing Uwes message(s) A temporary remote VLF grabber is at http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html It is the N-S loop but as you can see the soundcard is not well filtered. I will improve this. Since this afternoon i'm using a BC558C between soundcard and loop, i.e. i use the 2V output of the soundcard together with the PNP-transistor as a preamp. It makes a gain of about 10 dB! The next time i want to try a NPN transistor, a ZTX690B. Unfortunately the Alphas are QRT in the moment. I would like to use them to check if there happen some glitches from time to time. SL is locked to DHO38 now. I wonder why the sferics are much stronger then the background noise, relative to the VLF grabber in the city (http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html). I'm still not sure if this is a very good sign but we will see very soon :-) Uwe, maybe you could send a carrier for one or two hours on 8270.00 Hz? So i could see if i can see you on the forest grabber :-) 73, Stefan