Return-Path: X-Spam-DCC: paranoid 1102; 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=-1.9 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_40_50,HTML_MESSAGE 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 tAQMYUoL026031 for ; Thu, 26 Nov 2015 23:34:30 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1a254M-0000IC-EX for rs_out_1@blacksheep.org; Thu, 26 Nov 2015 22:31:14 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1a254M-0000I3-3Z for rsgb_lf_group@blacksheep.org; Thu, 26 Nov 2015 22:31:14 +0000 Received: from mail-wm0-f52.google.com ([74.125.82.52]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.86) (envelope-from ) id 1a253I-0001lr-1F for rsgb_lf_group@blacksheep.org; Thu, 26 Nov 2015 22:31:12 +0000 Received: by wmvv187 with SMTP id v187so47983425wmv.1 for ; Thu, 26 Nov 2015 14:29:50 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=BrevSOYg0UPnoVzHTv+TyfDogCTkpCTrV6quM3di5II=; b=UrsN1GSZJ+63IaajjlJb1Pz19TZdGTud8y0PJe/jop4NFMhJIiGN4uE/CdPjpJ1Gzg +Qukt+eRq0Y8JxLb2T244CSId3spoW3uVI/QGTSAZrgW+R74jqAsFPJkYnLlYxADy1q7 P2a1QmhhjtS1i9FRRlklCsmuOTMBvtFDTEkVzrrrTXgfIzAS3/tkJGjyE2/6VJRICbDA d4TJIYGlZqZVBdurx78WUdAHzAQ9ThyDXpbSH7eYuUfW+GjaUOJK+H9qDeFPyozIrVo2 sG5zdC+DvNE8wRNgvBvbzBmVgJ3AtdiwMsbc1196ytDbmNSBBuodrGyP7KFy9njIdvj3 4uBQ== MIME-Version: 1.0 X-Received: by 10.194.185.6 with SMTP id ey6mr52129346wjc.42.1448576990581; Thu, 26 Nov 2015 14:29:50 -0800 (PST) Received: by 10.28.130.139 with HTTP; Thu, 26 Nov 2015 14:29:50 -0800 (PST) In-Reply-To: <8D2F6AB6A7F8A48-156C-17F7EF@webmail-vm019.sysops.aol.com> References: <56577081.6030200@abelian.org> <8D2F6AB6A7F8A48-156C-17F7EF@webmail-vm019.sysops.aol.com> Date: Thu, 26 Nov 2015 22:29:50 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Scan-Signature: 13ce2d45c6831942db3d21680606cc2e Subject: Re: LF: More EbNaut 137.777 Content-Type: multipart/alternative; boundary=047d7bea40b6f41c490525791c6d 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: 5358 --047d7bea40b6f41c490525791c6d Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Good point, never thought about the .TXT file ! Noise levels seem to have risen here, no more decodes since that original one. I've always thought this urban site is poor for LF Rx, hence have tened in teh past to put up beacon signals for others to listen to. Its novel being a listener for once/ Bed time is calling now... I'll modify the prog to record multiple timed sessions - so will be able to leave it running overnight unattended then. The other option would be to write a prog that carves up one continuous .WAV file into segments based on specified time slots. Do like the idea of running multiple parallel sessions with different time offsets. Does that make it into a RAKE receiver ? Andy G4JNT On 26 November 2015 at 21:49, Markus Vester wrote: > Too late for 20:00, nil of 21:30, but then a good one at 21:00, +1.3 dB, > 1.2s offset. > > I run 10 copies of the decoder in steps of 0.2 seconds > ... Prx > Ptx ? ;-) > > >There is a faint trace visible on the waterfall at the moment > Andy your spectrogram nicely shows the 0.5 Hz wide "noise hump" from the > modulated transmission, so the signal is still relatively strong for you. > > > How can I make a copy of the text in the EbNaut window ? > All info on the decodes will be in the xxx-log.txt file. > > BTW Under Windows 8 or 10, the show_rawsyms3a utility sometimes froze on > exit. Fixed with version 3b in > http://df6nm.bplaced.net/VLF/fec_tests/df6nm_ebnaut_utilities.zip > > Good luck and have fun, > > Markus (DF6NM) > > > > > -----Urspr=C3=BCngliche Mitteilung----- > Von: Paul Nicholson > An: rsgb_lf_group > Verschickt: Do, 26 Nov 2015 9:52 pm > Betreff: Re: LF: More EbNaut 137.777 > > > > > > > Message: 5 chars > > Coding: 8K19A > > Symbols: 512 at 2 seconds each > > Duration: 1024 seconds, 00:17:04.00 > > > > Best decode here is at T offset +0.8 > > Eb/N0=3D5.4 phase 150 150 180 180 > > > > I run 10 copies of the decoder in steps of 0.2 seconds > > and grep the log files. > > > > -- > > Paul Nicholson > > -- > > > > > --047d7bea40b6f41c490525791c6d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Good point, never thought about the .TXT file =C2=A0!
= Noise levels seem to have risen here, no more decodes since that original o= ne.=C2=A0 I've always thought this urban site is poor for LF Rx, hence = have tened in teh past to put up beacon signals for others to listen to. = =C2=A0 =C2=A0Its novel being a listener for once/
Bed time is cal= ling now...

I'll modify the prog to record= multiple timed sessions - so will be able to leave it running overnight un= attended then. =C2=A0 The other option would be to write a prog that carves= up one continuous .WAV file into segments based on specified time slots.

Do like the idea of running multiple parallel sessi= ons with different time offsets. =C2=A0 Does that make it into a =C2=A0RAKE= receiver ?

Andy =C2=A0G4JNT


On 26 Nove= mber 2015 at 21:49, Markus Vester <markusvester@aol.com> = wrote:
Too late for 20:00, nil of 21:30, but then a good=C2=A0one at 21:00, += 1.3 dB, 1.2s offset.
> I run 10 copies of the decoder in steps of 0.2 seconds
... Prx > Ptx ? ;-)
=C2=A0
>There is a faint trace visible on the waterfall at the moment
Andy your spectrogram=C2=A0nicely shows=C2=A0the 0.5=C2=A0Hz wide=C2= =A0"noise hump" from the modulated transmission, so the signal is= still relatively strong for you.=C2=A0
=C2=A0
> How can I make a copy of the text in the EbNaut window ?
All info on the decodes will be in the xxx-log.txt file.
=C2=A0
BTW Under Windows 8 or 10, the show_rawsyms3a utility sometimes froze = on exit. Fixed with=C2=A0version 3b=C2=A0in http://df6= nm.bplaced.net/VLF/fec_tests/df6nm_ebnaut_utilities.zip
=C2=A0
Good luck and have fun,
=C2=A0
Markus (DF6NM)
=C2=A0
=C2=A0

=C2=A0
-----Urspr=C3=BCngliche Mitteilung-----
Von: Paul Nicholson <vlf0403@abelian.org>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Do, 26 Nov 2015 9:52 pm
Betreff: Re: LF: More EbNaut 137.777




 

Message: 5 chars 

Coding: 8K19A 

Symbols: 512 at 2 seconds each 

Duration: 1024 seconds, 00:17:04.00 

 

Best decode here is at T offset +0.8 

Eb/N0=3D5.4 phase 150  150  180  180 

 

I run 10 copies of the decoder in steps of 0.2 seconds 

and grep the log files. 

 

-- 

Paul Nicholson 

--



--047d7bea40b6f41c490525791c6d--