Return-Path: X-Spam-DCC: paranoid 1170; 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=-0.3 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_AOL_TAGS,HTML_40_50,HTML_MESSAGE,UNPARSEABLE_RELAY 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 u1C8cJeq002940 for ; Fri, 12 Feb 2016 09:38:19 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aU94w-00056I-SS for rs_out_1@blacksheep.org; Fri, 12 Feb 2016 08:27:50 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aU94w-000569-Ge for rsgb_lf_group@blacksheep.org; Fri, 12 Feb 2016 08:27:50 +0000 Received: from omr-m007e.mx.aol.com ([204.29.186.9]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.86) (envelope-from ) id 1aU93u-00067G-EY for rsgb_lf_group@blacksheep.org; Fri, 12 Feb 2016 08:27:49 +0000 Received: from mtaomg-mab01.mx.aol.com (mtaomg-mab01.mx.aol.com [172.26.249.83]) by omr-m007e.mx.aol.com (Outbound Mail Relay) with ESMTP id BCC073800486 for ; Fri, 12 Feb 2016 03:26:29 -0500 (EST) Received: from core-tmp05.mail.aol.com (core-tmp05.mail.aol.com [10.72.121.55]) by mtaomg-mab01.mx.aol.com (OMAG/Core Interface) with ESMTP id 7AE3338000082 for ; Fri, 12 Feb 2016 03:26:29 -0500 (EST) References: <8D3313BD2B78532-1F38-55BAD1@webmail-vm013.sysops.aol.com> To: rsgb_lf_group@blacksheep.org In-Reply-To: <8D3313BD2B78532-1F38-55BAD1@webmail-vm013.sysops.aol.com> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: Markus Vester X-MB-Message-Type: User X-Mailer: AOL Webmail BASIC Received: from 188.192.95.60 by webmail-vm107.sysops.aol.com (64.12.246.155) with HTTP (WebMailUI); Fri, 12 Feb 2016 03:26:29 -0500 Message-Id: <8D33386347EED02-830-7FEDAD@webmail-vm107.sysops.aol.com> X-Originating-IP: [188.192.95.60] Date: Fri, 12 Feb 2016 03:26:29 -0500 x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1455265589; bh=Xi5jl6t9LjDmbjvMWIrMa57rxIl5BPpU9q6j6XpTK/Q=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=0IY1xDEMD6Ioo5mi6FycXMdHs3fWJObJ7uE1luqVHgeuWEFH57WzDQhVKSbsp9Uvi UOlZQXjNBhqhxW0uC8fQ6Tfaj6Rgfub8wh4vqcAHnmy57KW94sm9pB4p6Yav/rddE4 ZMf5AntB/IvNl8UIEJiYtP8lHUIq3O8I9OMhLcvk= x-aol-sid: 3039ac1af95356bd973537f5 X-Scan-Signature: eeb98d9e5f7535b37e24952fd7f85252 Subject: Re: VLF: EbNaut 8270.1 Friday Content-Type: multipart/alternative; boundary="--------MB_8D3338634945998_830_F30DCA_webmail-vm107.sysops.aol.com" 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: RO X-Status: X-Keywords: X-UID: 6774 This is a multi-part message in MIME format. ----------MB_8D3338634945998_830_F30DCA_webmail-vm107.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" =20Carrier=20on=208270.0025=20on=20air=20again=20since=208:15,=20EbNaut=C2=A0wil= l=20start=208:30:=0D=0A=C2=A0=0D=0AFrequency:=208270.100=20Hz,=0D=0Astart=C2=A0t= ime=208:30:02,=C2=A0=0D=0A5=20characters,=208K19A,=2016=20bit=20CRC,=2010=20seco= nd=20symbols,=20=0D=0Atotal=C2=A0duration=205120=20seconds,=20=0D=0Aend=20time=C2= =A009:55:22.=0D=0A=0D=0A=0D=0AStill=205=20characters=20but=20different=20message= =20than=20last=20time.=0D=0A=C2=A0=0D=0ABest=2073,=0D=0AMarkus=20(DF6NM)=0D=0A=0D= =0A-----Urspr=C3=BCngliche=20Mitteilung-----=20=0D=0AVon:=20Markus=20Vester=20&l= t;markusvester@aol.com>=0D=0AAn:=20rsgb_lf_group=20<rsgb_lf_group@blackshe= ep.org>=0D=0AVerschickt:=20Di,=209=20Feb=202016=2011:32=20am=0D=0ABetreff:=20= Re:=20VLF:=20EbNaut=208270.1=20Sunday=0D=0A=0D=0A=20=20=20=0D=0A=20=20Thanks=20P= aul=20for=20trying!=0D=0A=20=20=C2=A0=0D=0A=20=20Same=20here...=20Stefan=20sent=20= me=20a=2063=20uHz=20spectrum=20data=20file=20from=20Heidelberg,=20which=20I=20un= successfully=20tried=20to=20decode.=20Unspreading=20the=20signal=20with=20the=20= known=20message=20"df6nm"=20recovered=20the=20unmodulated=20carrier=20with=2010.= 2=20dB=20SNR=20in=201/5120=20Hz,=20equivalent=20to=20Eb/N0=3D-4.3=20dB=20for=202= 8.5=20net=20bits.=0D=0A=20=20=C2=A0=0D=0A=20=20There=20seemed=20to=20be=20a=20si= gnificant=20degradation=20from=20Stefan's=20strong=20local=20test=20on=208270.00= 5,=20which=20is=20close=20to=20but=20not=20exactly=20in=20the=20null=20of=20the=20= 10=20s=20symbol=20filter,=20and=20unfortunately=20also=20accompanied=20by=20weak= =20noise=20sidebands.=20Notching=20out=20a=2030=20mHz=20wide=20section=20around=20= the=20carrier=20improved=20Eb/N0=20to=20-0.8=20dB,=20which=20would=20have=20come= =20close=20but=20still=20didn't=20produce=20a=20decode.=C2=A0=20=0D=0A=20=20=C2=A0= =0D=0A=20=20I=20have=20uploaded=20IQ=20wav=20files=20and=20plots=20to=20=0D=0A=20= http://df6nm.bplaced.net/VLF/fec_tests/dk7fc_160207_0502.zip=20(130=20kB).=0D=0A= =20The=20best=20unspread=20carrier=20was=20obtained=20using=203311=20s=20start=20= offset=20and=20+0.10022=20Hz=20frequency=20offset.=0D=0A=20=20=C2=A0=0D=0A=20=20= Best=2073,=0D=0A=20Markus=0D=0A=20=C2=A0=0D=0A=20=0D=0A=20=20-----Original=20Mes= sage-----=0D=0A=20From:=20Paul=20Nicholson=20<vlf0403@abelian.org>=0D=0A=20= To:=20rsgb_lf_group=20<rsgb_lf_group@blacksheep.org>=0D=0A=20Sent:=20Mon,=20= Feb=208,=202016=208:36=20pm=0D=0A=20Subject:=20Re:=20VLF:=20EbNaut=208270.1=20Su= nday=0D=0A=20=0D=0A=20>=20Just=20started=20another=20sequence=20with=20same=20= parameters,=20=0D=0A=20=20>=20running=2004:00:02=20to=205:25:22=20UT.=20=0D=0A= =20=20=0D=0A=20I=20must=20admit=20defeat=20on=20this=20one=20Markus.=20=0D=0A=20= =20=0D=0A=20The=20signal=20is=20there=20but=20just=20a=20dB=20too=20weak=20to=20= =0D=0A=20decode.=20=20The=20following=20carrier=20was=200.07=20fT=20which=20=0D=0A= =20is=20a=20decent=20signal=20but=20the=20noise=20was=20higher=20=0D=0A=20than=20= the=20other=20day.=20=0D=0A=20=20=0D=0A=20Here=20I've=20been=20playing=20with=20= ebsynth=20which=20is=20now=20=0D=0A=20at=20version=200.5=20and=20has=20some=20im= provements.=20=20It=20uses=20=0D=0A=20much=20less=20CPU=20and=20does=20the=20pha= se=20modulation=20using=20=0D=0A=20a=20sigmoid=20shaped=20slew.=20=0D=0A=20=20=0D= =0A=20=20=20http://abelian.org/ebnaut/ebsynth.shtml=20=0D=0A=20=20=0D=0A=20I=20b= uilt=20a=20multiplier=20chain,=2053077.777778=20*=203=20*=203=20and=20=0D=0A=20h= ave=20a=20nice=2010V=20477=20kHz=20signal=20which=20is=20rock=20steady=20=0D=0A=20= and=20the=20modulation=20clicks=20don't=20seem=20to=20spread.=20=0D=0A=20=20=0D=0A= =20There=20was=20a=20gap=20in=20the=20rain=20on=20Sunday=20so=20I=20put=20up=20a= =20=0D=0A=20200=20metre=20long=20wire.=20=0D=0A=20=20=0D=0A=20--=20=0D=0A=20Paul= =20Nicholson=20=0D=0A=20--=C2=A0=0D=0A=20=C2=A0=0D=0A=20=C2=A0=0D=0A=20=C2=A0=20= =0D=0A=20=0D=0A=20=20=0D=0A=20=0A=0A ----------MB_8D3338634945998_830_F30DCA_webmail-vm107.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8" =0D=0A=0D=0A=0D=0A
=20Carr= ier=20on=208270.0025=20on=20air=20again=20since=208:15,=20EbNaut will=20sta= rt=208:30:
=0D=0A=0D=0A
 
=0D=0A=0D=0A
=0D=0AFrequency:=208= 270.100=20Hz,
=0D=0A=0D=0Astart time=208:30:02, =0D=0A=0D=0A<= div=20style=3D"color:=20black;=20font-family:=20arial;=20font-size:=2010pt;">5=20= characters,=208K19A,=2016=20bit=20CRC,=2010=20second=20symbols,=20=0D=0A=0D= =0Atotal duration=205120=20seconds,=20=0D=0A=0D=0Aend=20time 09:55:2= 2.
=0D=0A=0D=0A=0D=0A=0D=0A
Still=205=20characters=20but=20di= fferent=20message=20than=20last=20time.
=0D=0A=0D=0A
 
=0D=0A= =0D=0A
Best=2073,
=0D=0A=0D=0A
Markus=20(DF6NM)
=0D=0A
=0D=0A= -----Urspr=C3=BCngliche=20Mitteilung-----=20
=0D=0AVon:=20Markus=20Vester=20&= lt;markusvester@aol.com>
=0D=0AAn:=20rsgb_lf_group=20<rsgb_lf_group@bla= cksheep.org>
=0D=0AVerschickt:=20Di,=209=20Feb=202016=2011:32=20am
=0D=0A= Betreff:=20Re:=20VLF:=20EbNaut=208270.1=20Sunday
=0D=0A
=0D=0A=20=0D=0A=20=20=0D=0A=0D=0A=20=20=0D=0A
Thanks=20Paul=20for=20trying!
=0D=0A=20= =20=0D=0A
 
=0D=0A=20=20=0D=0A
Same=20here...=20Stefan=20sent=20= me=20a=2063=20uHz=20spectrum=20data=20file=20from=20Heidelberg,=20which=20I=20un= successfully=20tried=20to=20decode.=20Unspreading=20the=20signal=20with=20the=20= known=20message=20"df6nm"=20recovered=20the=20unmodulated=20carrier=20with=2010.= 2=20dB=20SNR=20in=201/5120=20Hz,=20equivalent=20to=20Eb/N0=3D-4.3=20dB=20for=202= 8.5=20net=20bits.
=0D=0A=20=20=0D=0A
 
=0D=0A=20=20=0D=0AThere=20seemed=20to=20be=20a=20significant=20degradation=20from=20Stefan's=20st= rong=20local=20test=20on=208270.005,=20which=20is=20close=20to=20but=20not=20exa= ctly=20in=20the=20null=20of=20the=2010=20s=20symbol=20filter,=20and=20unfortunat= ely=20also=20accompanied=20by=20weak=20noise=20sidebands.=20Notching=20out=20a=20= 30=20mHz=20wide=20section=20around=20the=20carrier=20improved=20Eb/N0=20to=20-0.= 8=20dB,=20which=20would=20have=20come=20close=20but=20still=20didn't=20produce=20= a=20decode. =20=0D=0A=20=20=0D=0A
 
=0D=0A=20=20=0D=0A<= div>I=20have=20uploaded=20IQ=20wav=20files=20and=20plots=20to=20
=0D=0A=20http://df6nm.bplaced.net/VLF/fec_tests/dk7fc_160207_0502.zip=20(130= =20kB).
=0D=0A=20The=20best=20unspread=20carrier=20was=20obtained=20using=203= 311=20s=20start=20offset=20and=20+0.10022=20Hz=20frequency=20offset.=0D=0A= =20=20=0D=0A
 
=0D=0A=20=20=0D=0A
Best=2073,
=0D=0A=20Marku= s
=0D=0A=20 
=0D=0A=20
=0D=0A=20=20=0D=0A
-----Original=20Me= ssage-----
=0D=0A=20From:=20Paul=20Nicholson=20<vlf0403@abelian.org>
=0D=0A=20To:=20rsgb_lf_group=20<= ;rsgb_lf_group@blacksheep.org<= /a>>
=0D=0A=20Sent:=20Mon,=20Feb=208,=202016=208:36=20pm
=0D=0A=20Subje= ct:=20Re:=20VLF:=20EbNaut=208270.1=20Sunday
=0D=0A=20
=0D=0A=20>=20= Just=20started=20another=20sequence=20with=20same=20parameters,=20
=0D=0A=20=20= >=20running=2004:00:02=20to=205:25:22=20UT.=20
=0D=0A=20=20
=0D=0A=20I=20= must=20admit=20defeat=20on=20this=20one=20Markus.=20
=0D=0A=20=20
=0D=0A=20= The=20signal=20is=20there=20but=20just=20a=20dB=20too=20weak=20to=20
=0D=0A=20= decode.=20=20The=20following=20carrier=20was=200.07=20fT=20which=20
=0D=0A=20= is=20a=20decent=20signal=20but=20the=20noise=20was=20higher=20
=0D=0A=20than=20= the=20other=20day.=20
=0D=0A=20=20
=0D=0A=20Here=20I've=20been=20playing=20= with=20ebsynth=20which=20is=20now=20
=0D=0A=20at=20version=200.5=20and=20has=20= some=20improvements.=20=20It=20uses=20
=0D=0A=20much=20less=20CPU=20and=20doe= s=20the=20phase=20modulation=20using=20
=0D=0A=20a=20sigmoid=20shaped=20slew.= =20
=0D=0A=20=20
=0D=0A=20=20=20http://abelian.org/ebnaut/ebsynth.shtml=20=0D=0A=20=20
=0D=0A=20I=20built=20a=20multiplier=20chain,=2053077.777778=20= *=203=20*=203=20and=20
=0D=0A=20have=20a=20nice=2010V=20477=20kHz=20signal=20= which=20is=20rock=20steady=20
=0D=0A=20and=20the=20modulation=20clicks=20don'= t=20seem=20to=20spread.=20
=0D=0A=20=20
=0D=0A=20There=20was=20a=20gap=20i= n=20the=20rain=20on=20Sunday=20so=20I=20put=20up=20a=20
=0D=0A=20200=20metre=20= long=20wire.=20
=0D=0A=20=20
=0D=0A=20--=20
=0D=0A=20Paul=20Nicholson=20=
=0D=0A=20-- 
=0D=0A=20 
=0D=0A=20 
=0D=0A=20&nb= sp;=20
=0D=0A=20
=0D=0A=20=20=0D=0A=20 ----------MB_8D3338634945998_830_F30DCA_webmail-vm107.sysops.aol.com--