Return-Path: X-Spam-DCC: paranoid 1117; 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,SPF_PASS 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 u47A08x1031035 for ; Sat, 7 May 2016 12:00:08 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ayyyV-0004PS-Es for rs_out_1@blacksheep.org; Sat, 07 May 2016 10:56:39 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ayyyV-0004PJ-6E for rsgb_lf_group@blacksheep.org; Sat, 07 May 2016 10:56:39 +0100 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.87) (envelope-from ) id 1ayyyT-0003Fd-KL for rsgb_lf_group@blacksheep.org; Sat, 07 May 2016 10:56:38 +0100 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id BFDF520A74 for ; Sat, 7 May 2016 11:56:35 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3r23vR4ykgz5vN0 for ; Sat, 7 May 2016 11:56:35 +0200 (CEST) Message-ID: <572DBBD3.3020709@posteo.de> Date: Sat, 07 May 2016 11:56:35 +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: <40b8e5c6692149a7911fe77631ebb33b@kabelmail.de> <572BB679.2040107@posteo.de> <572BE449.5010806@abelian.org> <279E0DEFDAFA4C849152DBBA3BFEDE8C@White> <572C5E72.7010404@posteo.de> <912731037.20160506233059@mterrier.net> <572D1111.9030302@posteo.de> <572D9843.7060402@abelian.org> In-Reply-To: <572D9843.7060402@abelian.org> X-Scan-Signature: a6b6ffaf48fdddf1ed5c25dc4bf03ee1 Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz Content-Type: text/plain; charset=UTF-8; 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 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 8019 Hello Paul, Good work indeed! The message is correct. It is the first digi mode message on 6.47 kHz. -0.3 dB Eb/N0, that's quite critical, and that for 100 second symbols. Also the phase variations seem to be much higher than on 8.27. The question is, is this reproducable and/or is it related to our path only. Maybe, going 200 Hz up or down would show a significantly different behaviour?! We will see... 73, Stefan Am 07.05.2016 09:24, schrieb Paul Nicholson: > > Stefan wrote: > > > A second EbNaut message will start: > > > > f = 6470.000 Hz > > Start time: 05.05.2016 15:00:02 UTC > > Period: 100 s > > Length: 5 > > I'm getting '73+55' at Eb/N0 = -0.3dB with > phase pattern 30 60 30 60 > > Carrier S/N: 15.25 dB in 19.5 uHz > > Still working on the first message, noise in the E/W loop > was very high that night. > > Looks like we have between 40 and 65 degree day/night phase > shift (depends which antenna I measure it on). > > -- > Paul Nicholson > -- >