Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dd03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7FAC53800009C; Fri, 27 Jan 2012 20:59:22 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RqxYi-00055c-VI for rs_out_1@blacksheep.org; Sat, 28 Jan 2012 01:58:28 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RqxYh-00055T-UO for rsgb_lf_group@blacksheep.org; Sat, 28 Jan 2012 01:58:27 +0000 Received: from nm38-vm5.bullet.mail.ne1.yahoo.com ([98.138.229.149]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1RqxYf-0007tO-Dt for rsgb_lf_group@blacksheep.org; Sat, 28 Jan 2012 01:58:27 +0000 Received: from [98.138.90.50] by nm38.bullet.mail.ne1.yahoo.com with NNFMP; 28 Jan 2012 01:58:18 -0000 Received: from [98.138.87.3] by tm3.bullet.mail.ne1.yahoo.com with NNFMP; 28 Jan 2012 01:58:18 -0000 Received: from [127.0.0.1] by omp1003.mail.ne1.yahoo.com with NNFMP; 28 Jan 2012 01:58:18 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 26763.72456.bm@omp1003.mail.ne1.yahoo.com Received: (qmail 98586 invoked by uid 60001); 28 Jan 2012 01:58:17 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1327715897; bh=zd3vG+/KCro2+5ttM7WYkzePkEVL/5E2UcWbkcd59+s=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=rFmSNIQZW+YgCsZycbtXu/qLNvMb5RdBy6xSOLiCasU6APXbvIeUlPdNVFxtibJAEiCxTvIwaDZBuvV1UQdn4cClBSF3vKmHBqYRl5hp7zahp8pJ/gYmJ9NpMkw8TZD47nPP9BSWP4tLoUCX4OC67be9McbSxXj7WCM8fGnWKB0= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=rb9PdlDtwbIZu30pckwyS+ldkFFdzBqeI8fPAHnMAi1QeccmOx/v1LwY/Afk3N2OPT51yXHCElr/3usgnwf0nVOaXh1JI8/f6FzLCm+msV2oSZAk2D+S2BgSDSleZ2q5EzSon/HWxQR5BGaMmjsqfoMqagrxX11k+O1JrVJinEs=; X-YMail-OSG: ngTUkDEVM1llncJ6RRaliEBFBPGByHrSRhBmMc4Z9NsxABD cuQ4bZ6Dy61nb7WyNW5TNJSFHjCWdwmKuL09yIjxPm6iIj6J2GE8iKTEmDe2 EvdEMODPC6DZGUnaWmXD7f1PgtnNcmSaKixdnHaSCiUBFy_eTN8grgKorKLt EH3ITFeKuhzZIAmXyAcOWrBTl.iKv4quSHYrmtxUoNsLL4B.CqWBKrv7If5Q UiOyTCCsJG5f3DLpRzC.CTdgYjfrBNgXjTvcYS0eTjANX.hL072UDyl_CcC2 Mgb5SiGKLlZNWlX2fJ8yOp70yBhkjUYUcUcAHlM.3MS5xA8_OrGg6_DQuXXS yAh5rAsVcHsaNO3RK4R7T08EIDu2OSO9TV.aBc80RjjO8MiyI8FoeYNuKMQ2 Hg2Yj5o_4he_V4o_P12F9_oReEdolgQAdVT7X.0OFbfYS0LWDpqShZT.tCZt u7QSopqbbWAxye.NNymeeM8gKgisZzfYPIZ6aWiwMtwv.MvGCQLxzaCiwtbm 2QClRF4Q.2w_wPheSC8tXy3V2YT8bx3qULiNdIDn4oT3bhxL_Wgvp8f8GWuO LCvboMpUA2YMAtoConX19mAHx947K5eyNMQQ_lVbR8NLbh94AcplI Received: from [97.89.32.232] by web125902.mail.ne1.yahoo.com via HTTP; Fri, 27 Jan 2012 17:58:17 PST X-Mailer: YahooMailWebService/0.8.116.331537 References: <3992CC59F7A14AA694628529761EC5DE@AGB> <4F1F695F.7020400@charter.net> <28E5D61E1299414C8AD335047F7EE837@White> <4F2213B0.2030107@charter.net> <4F22901C.8060503@charter.net> <7667FF6C11E54298B5CAA2280D2B436C@White> <001201ccdcf9$70fbcf60$6d01a8c0@DELL4> <1327690467.44701.YahooMailNeo@web125901.mail.ne1.yahoo.com> Message-ID: <1327715897.60252.YahooMailNeo@web125902.mail.ne1.yahoo.com> Date: Fri, 27 Jan 2012 17:58:17 -0800 (PST) From: Andy - KU4XR To: "rsgb_lf_group@blacksheep.org" In-Reply-To: MIME-Version: 1.0 DomainKey-Status: good (testing) X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TINY_FONT=1.425 Subject: Re: WOLF: 135975 Hz, 10 b/s again Content-Type: multipart/alternative; boundary="90367331-688710556-1327715897=:60252" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: *** X-Spam-Status: No, hits=3.7 required=5.0 tests=FORGED_YAHOO_RCVD,HTML_30_40, HTML_MESSAGE,OPT_HEADER,TO_ADDRESS_EQ_REAL autolearn=no version=2.63 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-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:396985184:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d019.1 ; domain : yahoo.com DKIM : fail x-aol-sid: 3039ac1d408f4f23567928c5 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --90367331-688710556-1327715897=:60252 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Thank you Markus for the explanation of WOLF modulation. I never stop learn= ing.... a good thing....=0ANow looking for you as of 01:45 UTC=A0=0A=0AAndy= - KU4XR - EM75xr - Friendsville, TN. USA=0ACoordinates: N: 35=BA 43' 54" -= W: 84=BA 3' 16"=0Ahttp://lwca.org/grabbers/ku4xr/=0Ahttp://www.myspace.com= /beaconxr=0Ahttp://ku4xr.webs.com=0Ahttp://lwca.org/community/YaBB.pl=0A=0A= =0A________________________________=0AFrom: Markus Vester =0ATo: rsgb_lf_group@blacksheep.org =0ASent: Friday, January 27, 2012 = 6:01 PM=0ASubject: Re: WOLF: 135975 Hz, 10 b/s again=0A=0A=0AHi Andy, LF,= =0A=A0=0Aactually there is no carrier line in the WOLF spectrum, it's BPSK = with a pseudorandom spreading code.=A0In a spectrogram it=A0resembles=A0a 1= 0 Hz wide noise band, which will be pretty much undetectable at any DX rang= e. Actually a kind of=A0spread spectrum mode, not unlike the GPS=A0modulati= on (pssst=A0;-).=0A=A0=0AI think I have proven (and resolved) my soundcard = phase-glitch problem. The attached trace shows a local audio test, with a= =A0WOLF signal generated on 1475 Hz. It is doubled in SpecLab's AM demodula= tor to regenereate a carrier at twice the frequency, which is=A0phase compa= red to an=A0hardware generated=A0Rb-derived=A0reference carrier. I=A0have e= mployed=A0SpecLab's RDF mode to display phase as colour (retarding R-G-B-R)= . The first half shows the result from WOLF-Gui running on=A0my "Grabber No= tebook", which has a number of programs running.=A0Besides the gradual phas= e roll due too a very minor frequency offset, there are=A0jumps every few m= inutes.=A0This is a bit nasty, as=A0Wolf will still decode such a signal wh= en it is strong, but not be able to go to its full sensitivity by using lon= g coherent integration. The right half after 21:40 shows the practically pe= rfect output from the Atom Netbook, the one which I have also=A0used during= several VLF transmissions.=A0=0A=0ASo, maybe it's worth another try. Will = put the "good" WOLF signal on air a few minutes after 23 UT,=A0QRG 135975 H= z, 10 b/s.=0A=A0=0ABest 73,=0AMarkus (DF6NM) --90367331-688710556-1327715897=:60252 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Thank you Markus for the explanation of W= OLF modulation. I never stop learning.... a good thing....
Now looking for you = as of 01:45 UTC 
 
Andy - KU4XR - EM75xr - Friendsville, TN. USA
Coordinates: N: 35=BA= 43' 54" - W: 84=BA 3' 16"
http://lwca.org/grabbers/ku4xr/
http://www= .myspace.com/beaconxr
http://ku4xr.webs.com
http://lwca.org/community= /YaBB.pl

From:= Markus Vester <markusvester@aol.com>
To: rsgb_lf_group@blacksheep.org
Sent: Friday, January 27, 2012 6:0= 1 PM
Subject: Re: WOLF: = 135975 Hz, 10 b/s again

Hi Andy, LF,
 
actually there is no carrier line in the W= OLF spectrum, it's BPSK with a pseudorandom spreading code. In a spect= rogram it resembles a 10 Hz wide noise band, which will be pretty= much undetectable at any DX range. Actually a kind of spread spectrum= mode, not unlike the GPS modulation (pssst ;-).
 
I think I have proven (and resolved) my so= undcard phase-glitch problem. The attached trace shows a local audio test, = with a WOLF signal generated on 1475 Hz. It is doubled in SpecLab's AM= demodulator to regenereate a carrier at twice the frequency, which is = ;phase compared to an hardware generated Rb-derived referenc= e carrier. I have employed SpecLab's RDF mode to display phase as= colour (retarding R-G-B-R). The first half shows the result from WOLF-Gui = running on my "Grabber Notebook", which has a number of programs runni= ng. Besides the gradual phase roll due too a very minor frequency offs= et, there are jumps every few minutes. This is a bit nasty, as&nb= sp;Wolf will still decode such a signal when it is strong, but not be able = to go to its full sensitivity by using long coherent integration. The right= half after 21:40 shows the practically perfect output from the Atom Netbook, the one which I have also used during several VLF transmissi= ons. 
So, maybe it's worth another try. Will put= the "good" WOLF signal on air a few minutes after 23 UT, QRG 135975 H= z, 10 b/s.
 
Best 73,
Markus (DF6NM)
 
 
 
 
 
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