Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-1.8 required=5.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_DNSWL_MED, RCVD_IN_SORBS_SPAM,SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: : mailn 1480; 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 v4TIYk1d028796 for ; Mon, 29 May 2017 20:34:47 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dFPRI-0005kl-Ck for rs_out_1@blacksheep.org; Mon, 29 May 2017 19:30:48 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dFPRH-0005kc-FU for rsgb_lf_group@blacksheep.org; Mon, 29 May 2017 19:30:47 +0100 Received: from omr-a019e.mx.aol.com ([204.29.186.67]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1dFPRD-0001yS-Lb for rsgb_lf_group@blacksheep.org; Mon, 29 May 2017 19:30:46 +0100 Received: from mtaomg-aab01.mx.aol.com (mtaomg-aab01.mx.aol.com [172.26.126.207]) by omr-a019e.mx.aol.com (Outbound Mail Relay) with ESMTP id 400CA3800092 for ; Mon, 29 May 2017 14:30:40 -0400 (EDT) Received: from core-ace07g.mail.aol.com (core-ace07.mail.aol.com [172.27.23.7]) by mtaomg-aab01.mx.aol.com (OMAG/Core Interface) with ESMTP id 91CB838000084 for ; Mon, 29 May 2017 14:30:39 -0400 (EDT) Received: from 188.192.95.60 by webprd-m39.mail.aol.com (10.74.5.42) with HTTP (WebMailUI); Mon, 29 May 2017 14:30:39 -0400 Date: Mon, 29 May 2017 14:30:39 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <15c5579698a-6343-1b814@webprd-m39.mail.aol.com> In-Reply-To: <2bafcee7-69e0-872f-e01a-36d82f952f2e@abelian.org> MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.192.95.60] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1496082640; bh=4S3S9GguyvnoxS8ZplNZwCrf1Dc0SiCtF7smbrxj8V8=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=sPiNNOC/nTUpRdDNkShtb0KIInQUaEej7mc8OEW2QnumsPbjlNPxpaKwHyz+6PRxW syXAOnzi9uMLdw/jeN0kgBHv7dFIVSiIjv6DEu6m7ftieUvs58AY3FQix0fnFNNXTF WwBYGMJA5GcY0OqeQcFiN1fMhuUoVqkCPRg6nGfs= x-aol-sid: 3039ac1a7ecf592c68cf5980 X-Scan-Signature: 9ca91679b330d65f05d707c2d2b164fe Subject: Re: VLF: EbNaut tonite, 'SMS' via VLF Content-Type: multipart/alternative; boundary="----=_Part_136477_2077383436.1496082639239" 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: 11825 ------=_Part_136477_2077383436.1496082639239 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Thanks Paul for trying again! The samplerate in the wav header should be co= rrect (which would make quite a difference at this number of symbols). Look= s like despite the cardioid, the received signal was not strong enough and = the night may have been too noisy here. 73, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Paul Nicholson An: rsgb_lf_group Verschickt: Mo, 29. Mai 2017 19:59 Betreff: Re: VLF: EbNaut tonite, 'SMS' via VLF Markus wrote: > I managed to produce a seamless wav with 0.514 Hz samplerate: > http://df6nm.bplaced.net/VLF/fec_tests/dl0ao_170524-25_join31uHz_wav.zip Still no decode. The correlation peaks at 20.44 dB in 12.6 uHz with offsets +2058 seconds and +0.1 Hz so it looks like the settings are correct. I'm using the sample rate 0.5143924/sec from the WAV inf1 header. It's about 9 or 10dB short of decoding. The previous attempt gave 22.09 dB in 12.6 uHz so it's lost a couple of dB somewhere. -- Paul Nicholson -- ------=_Part_136477_2077383436.1496082639239 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Thanks Paul for trying again! The samplerate in the wav = header should be correct (which would make quite a difference at this numbe= r of symbols). Looks like despite the cardioid, the received signal was not= strong enough and the night may have been too noisy here.

73, = Markus

-----Urspr=C3=BCngliche Mitteilung-----
Von: Paul Nichols= on <vlf0403@abelian.org>
An: rsgb_lf_group <rsgb_lf_group@black= sheep.org>
Verschickt: Mo, 29. Mai 2017 19:59
Betreff: Re: VLF: Eb= Naut tonite, 'SMS' via VLF


Markus wrote:

> I ma= naged to produce a seamless wav with 0.514 Hz samplerate:
> http://df6nm.bplaced.net/VLF/fec_tests/dl0ao_170524-25= _join31uHz_wav.zip

Still no decode. The correlation peaks at 20= .44 dB in 12.6 uHz with
offsets +2058 seconds and +0.1 Hz so it looks li= ke the settings are
correct. I'm using the sample rate 0.5143924/sec = from the
WAV inf1 header.

It's about 9 or 10dB short of decoding.=

The previous attempt gave 22.09 dB in 12.6 uHz so it's lost a
co= uple of dB somewhere.

--
Paul Nicholson
--

------=_Part_136477_2077383436.1496082639239--