Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 65AF7380000CE; Wed, 23 Jan 2013 12:21:56 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Ty3t3-0005Ij-6D for rs_out_1@blacksheep.org; Wed, 23 Jan 2013 17:13:21 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Ty3t2-0005Ia-D2 for rsgb_lf_group@blacksheep.org; Wed, 23 Jan 2013 17:13:20 +0000 Received: from imr-db01.mx.aol.com ([205.188.91.95]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Ty3sw-000397-CQ for rsgb_lf_group@blacksheep.org; Wed, 23 Jan 2013 17:13:19 +0000 Received: from mtaomg-da02.r1000.mx.aol.com (mtaomg-da02.r1000.mx.aol.com [172.29.51.138]) by imr-db01.mx.aol.com (Outbound Mail Relay) with ESMTP id 3AF9A380000FA; Wed, 23 Jan 2013 12:12:48 -0500 (EST) Received: from core-dfd004c.r1000.mail.aol.com (core-dfd004.r1000.mail.aol.com [172.29.55.79]) by mtaomg-da02.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id E6D39E00008B; Wed, 23 Jan 2013 12:12:47 -0500 (EST) References: <8CFC6DF29458B09-1BC0-2C869@webmail-d136.sysops.aol.com> To: rsgb_lf_group@blacksheep.org, rsgb_lf_group@yahoogroups.co.uk In-Reply-To: <8CFC6DF29458B09-1BC0-2C869@webmail-d136.sysops.aol.com> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: Markus Vester X-MB-Message-Type: User X-Mailer: AOL Webmail 37309-BASIC Received: from 194.138.39.61 by webmail-m040.sysops.aol.com (64.12.101.223) with HTTP (WebMailUI); Wed, 23 Jan 2013 12:12:47 -0500 Message-Id: <8CFC7A4000C12C4-11E8-34444@webmail-m040.sysops.aol.com> X-Originating-IP: [194.138.39.61] Date: Wed, 23 Jan 2013 12:12:47 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1358961168; bh=bVzaQAdHyAG4xnfyCfdcuROiCiQVNcCNs2C9HhBgyck=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=AkazYLIc4D+MFjV2V9Tp+CkAuZD1SoCJfnpJO5Xq0bJunoq0KhhjsPr/K1lxv+tpD r6gKDrt9FZlscgh+hauINhnMYnQjKxuAX4CO+dNAVGq5VsX1gsA9X8SI9xW7zFvB1A CqefsXIOXa89P+TkcmLGqO4W3MifgrudicnCZdpw= X-AOL-SCOLL-SCORE: 0:2:397004160:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Here are last night's Op-32 results, showing more hits from the same players, and UW8SM in the clear:  frequency     peak   focused   Opera    end time  corr.  callsign 137556.938Hz 9.8dB 33.8dBaf -33.9dBOp 20:16:03 20.8dB RN3AGC 137537.000Hz 4.7dB 30.2dBaf -37.4dBOp 20:51:11 17.4dB UA4WPF 137556.938Hz 6.2dB 33.4dBaf -34.2dBOp 21:12:06 19.9dB RN3AGC 137537.000Hz 4.7dB 30.2dBaf -37.4dBOp 21:25:13 18.4dB UA4WPF 137556.953Hz 11.0dB 34.6dBaf -33.0dBOp 22:02:15 21.2dB RN3AGC 137536.922Hz 6.4dB 29.8dBaf -37.9dBOp 21:59:12 19.3dB UA4WPF 137566.516Hz 6.6dB 30.7dBaf -37.0dBOp 00:24:15 20.1dB UW8SM 137566.500Hz 7.6dB 33.5dBaf -34.1dBOp 01:12:06 20.3dB UW8SM 137566.516Hz 4.8dB 30.1dBaf -37.5dBOp 01:59:55 19.2dB UW8SM 137566.531Hz 3.6dB 30.3dBaf -37.4dBOp 02:47:46 16.5dB UW8SM 137566.516Hz 4.2dB 30.5dBaf -37.1dBOp 03:35:35 18.8dB UW8SM 137566.531Hz 7.1dB 32.2dBaf -35.4dBOp 04:23:24 19.4dB UW8SM 137566.516Hz 8.2dB 32.9dBaf -34.8dBOp 05:11:15 21.0dB UW8SM 137566.531Hz 5.6dB 32.3dBaf -35.4dBOp 05:59:06 18.2dB UW8SM [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [205.188.91.95 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) -0.0 SPF_PASS SPF: sender matches SPF record -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 8044ff87f22777286b33afb193e0811f Subject: LF: Re: Op32 correlation detection: RN3AGC, UA4WPF, UW8SM Content-Type: multipart/alternative; boundary="--------MB_8CFC7A40028A344_11E8_ACE70_webmail-m040.sysops.aol.com" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=FORGED_AOL_TAGS,HTML_20_30, HTML_MESSAGE 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-AUTHENTICATION: mtain-dc06.r1000.mx.aol.com ; domain : mx.aol.com DKIM : fail X-AOL-OVERRIDE-PIK-REASON: Y x-aol-sid: 3039ac1d408651001c34537b X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ----------MB_8CFC7A40028A344_11E8_ACE70_webmail-m040.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Here are last night's Op-32 results, showing more hits from the same player= s, and UW8SM in the clear: =C2=A0frequency=C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0peak=C2=A0=C2=A0 =C2=A0focuse= d=C2=A0=C2=A0=C2=A0 Opera=C2=A0=C2=A0 =C2=A0=C2=A0 end time=C2=A0=C2=A0 cor= r.=C2=A0=C2=A0 callsign=C2=A0=20 137556.938Hz=C2=A0 9.8dB 33.8dBaf -33.9dBOp=C2=A0 20:16:03 20.8dB RN3AGC 137537.000Hz=C2=A0 4.7dB 30.2dBaf -37.4dBOp=C2=A0 20:51:11 17.4dB UA4WPF 137556.938Hz=C2=A0 6.2dB 33.4dBaf -34.2dBOp=C2=A0 21:12:06 19.9dB RN3AGC 137537.000Hz=C2=A0 4.7dB 30.2dBaf -37.4dBOp=C2=A0 21:25:13 18.4dB UA4WPF 137556.953Hz 11.0dB 34.6dBaf -33.0dBOp=C2=A0 22:02:15 21.2dB RN3AGC 137536.922Hz=C2=A0 6.4dB 29.8dBaf -37.9dBOp=C2=A0 21:59:12 19.3dB UA4WPF 137566.516Hz=C2=A0 6.6dB 30.7dBaf -37.0dBOp=C2=A0 00:24:15 20.1dB UW8SM 137566.500Hz=C2=A0 7.6dB 33.5dBaf -34.1dBOp=C2=A0 01:12:06 20.3dB UW8SM 137566.516Hz=C2=A0 4.8dB 30.1dBaf -37.5dBOp=C2=A0 01:59:55 19.2dB UW8SM 137566.531Hz=C2=A0 3.6dB 30.3dBaf -37.4dBOp=C2=A0 02:47:46 16.5dB UW8SM 137566.516Hz=C2=A0 4.2dB 30.5dBaf -37.1dBOp=C2=A0 03:35:35 18.8dB UW8SM 137566.531Hz=C2=A0 7.1dB 32.2dBaf -35.4dBOp=C2=A0 04:23:24 19.4dB UW8SM 137566.516Hz=C2=A0 8.2dB 32.9dBaf -34.8dBOp=C2=A0 05:11:15 21.0dB UW8SM 137566.531Hz=C2=A0 5.6dB 32.3dBaf -35.4dBOp=C2=A0 05:59:06 18.2dB UW8SM This time coherent correlation did not produce more hits, so only incoheren= t is shown. In the spectrogram, some 6.25 Hz Loran lines ended early becaus= e Slonim (my closest GRI 8000 station) went off air at 21:05. BTW the "candidate list" used for correlation is currently WD2XES, G3XDV, P= A0A, M0BMU, SM6BHZ, G0NBD, DF6NM, DK7FC, VO1NA, UA4WPF, DF2JP, G8HUH, RN3AG= C, UA0AET, R7NT, G4WGT, UW8SM. Please send a note if you intend to transmit= Opera-32 on LF and would like to be included. =C2=A0 Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester <markusvester@aol.com> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>; rsgb_lf_group <r= sgb_lf_group@yahoogroups.co.uk> Verschickt: Di, 22 Jan 2013 6:43 pm Betreff: Op32 correlation detection: RN3AGC, UA4WPF, UW8SM Last night Jan-21/22 I tried again to detect Opera signals using the "deep = search" correlatiopn technique.=20 =C2=A0 Attached is a spectrogram covering the 137.5 to 137.6 kHz segment in 0.477 = mHz FFT resolution. At first, the strong WSPR signal from DK7FC on 137.607 = completely defeated the noise blanker. This could later be mitigated by ins= erting a steep bandfilter in SpecLab. The spectrum shows a large number of = peaks, most of them from active Loran chains, eg. 6.25 Hz multiples from GR= I 8000. =C2=A0 The FFT results were exported in ten minute intervals and processed offline= by my experimental Opera detection software, which searches for non-Loran = peaks and correlates the spectrum in their vicinity against several known O= pera signatures. Phase-coherent and incoherent searches were done in two se= parate runs. This produced the following hits: =C2=A0 coherent: =C2=A0 =C2=A0frequency=C2=A0=C2=A0 =C2=A0=C2=A0 =C2=A0peak=C2=A0=C2=A0=C2=A0=C2=A0= focused=C2=A0=C2=A0=C2=A0 Opera=C2=A0=C2=A0 =C2=A0 =C2=A0 end time=C2=A0= =C2=A0 corr.=C2=A0 callsign=C2=A0=20 137536.953Hz 10.0dB 20.7dBaf -46.9dBOp=C2=A0 20:42:13 15.5dB UA4WPF 137536.953Hz=C2=A0 7.4dB 17.4dBaf -50.2dBOp=C2=A0 21:18:12 16.0dB UA4WPF 137556.953Hz=C2=A0 6.2dB 18.1dBaf -49.5dBOp=C2=A0 21:26:11 14.1dB RN3AGC 137556.938Hz 14.2dB 26.2dBaf -41.4dBOp=C2=A0 22:13:29 17.5dB RN3AGC 137556.953Hz 15.4dB 27.3dBaf -40.3dBOp=C2=A0 23:09:31 20.1dB RN3AGC =C2=A0 incoherent: =C2=A0 =C2=A0frequency=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0 =C2=A0peak=C2=A0 =C2=A0focus= ed=C2=A0=C2=A0=C2=A0 Opera=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 end time=C2= =A0 =C2=A0corr.=C2=A0 callsign=C2=A0=20 137556.938Hz=C2=A0 5.6dB 28.6dBaf -39.0dBOp=C2=A0 22:13:29 17.8dB RN3AGC 137556.938Hz=C2=A0 6.5dB 32.7dBaf -34.9dBOp=C2=A0 23:09:31 20.1dB RN3AGC 137562.547Hz=C2=A0 4.6dB 31.5dBaf -36.1dBOp=C2=A0 00:08:18 15.8dB UW8SM 137562.547Hz=C2=A0 6.5dB 27.3dBaf -40.4dBOp=C2=A0 02:31:47 14.4dB UW8SM 137562.531Hz=C2=A0 5.5dB 32.7dBaf -34.9dBOp=C2=A0 03:19:38 14.6dB UW8SM 137562.563Hz=C2=A0 5.3dB 31.7dBaf -36.0dBOp=C2=A0 04:07:26 19.7dB UW8SM 137562.547Hz=C2=A0 6.1dB 33.1dBaf -34.5dBOp=C2=A0 05:43:08 19.6dB UW8SM=20 =C2=A0 UA4WPF and RN3AGC seem to be phase continuous whereas UW8SM could only be d= etected in incoherent mode. Note that in the current state the SNR calibrat= ion still has large uncertainties, but the coherent mode can clearly see mu= ch deeper.=20 =C2=A0 Unfortunately UW8SM seems to be sitting right on top of a Russian Loran lin= e on 137562.5. A slight shift in frequency=C2=A0(eg. 0.5 Hz) would probably= provide better coverage for him. =C2=A0 Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester <markusvester@aol.com> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org> Verschickt: Sa, 8 Dez 2012 7:03 pm Betreff: R7NT Op32 correlation detection Alex, LF, =C2=A0 the Op32 signal from R7NT was well visible in the 21 mHz TA window. I made = two recordings of a 2 Hz band around the anounced frequency, one from 22:08= to 08:11 UT and another one in=C2=A0daylight from 12:06 to 15:25. Then I= =C2=A0ran both through my Opera correlation detector,=C2=A0see attached res= ult. =C2=A0 The first two lines=C2=A0are=C2=A0a list of several known active Opera stat= ions. Each of=C2=A0these was tried in the=C2=A0cross correlation procedure.= =C2=A0The lines=C2=A0below that are=C2=A0the successful hits. Going from le= ft to right, the=C2=A0printed output contains: =C2=A0 =C2=A0time window for correlation (decimal UT hours before / after midnight= last night), =C2=A0frequency of carrier peak, =C2=A0uncalibrated "raw" dB of detected carrier, =C2=A0carrier SNR after a "carrier autofocus" procedure, which removes smal= l amouts of chirp=C2=A0and optimally weighs the amplitude for QSB, =C2=A0SNR on the Opera scale (ie. carrier in 2.5 kHz=C2=A0minus 4 dB), =C2=A0either c or i for a coherent=C2=A0or incoherent demodulation, =C2=A0UT hour of the winning correlation peak (corresponds to the start of = the transmission), =C2=A0SNR of=C2=A0correlation peak in time domain, =C2=A0callsign of the winner of the correlation procedure. =C2=A0 Now running a recording on 137567 to look for UA0AET tonight. =C2=A0 Best 73, Markus (DF6NM) =C2=A0 =C2=A0 ----------MB_8CFC7A40028A344_11E8_ACE70_webmail-m040.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Here are l= ast night's Op-32 results, showing more hits from the same players, and UW8= SM in the clear:

 frequency      peak    focuse= d    Opera      end time   cor= r.   callsign 
137556.938Hz  9.8dB 33.8dBaf -33.9dBOp  20:16:03 20.8dB RN3AGC 137537.000Hz  4.7dB 30.2dBaf -37.4dBOp  20:51:11 17.4dB UA4WPF 137556.938Hz  6.2dB 33.4dBaf -34.2dBOp  21:12:06 19.9dB RN3AGC 137537.000Hz  4.7dB 30.2dBaf -37.4dBOp  21:25:13 18.4dB UA4WPF 137556.953Hz 11.0dB 34.6dBaf -33.0dBOp  22:02:15 21.2dB RN3AGC
137536.922Hz  6.4dB 29.8dBaf -37.9dBOp  21:59:12 19.3dB UA4WPF 137566.516Hz  6.6dB 30.7dBaf -37.0dBOp  00:24:15 20.1dB UW8SM
137566.500Hz  7.6dB 33.5dBaf -34.1dBOp  01:12:06 20.3dB UW8SM
137566.516Hz  4.8dB 30.1dBaf -37.5dBOp  01:59:55 19.2dB UW8SM
137566.531Hz  3.6dB 30.3dBaf -37.4dBOp  02:47:46 16.5dB UW8SM
137566.516Hz  4.2dB 30.5dBaf -37.1dBOp  03:35:35 18.8dB UW8SM
137566.531Hz  7.1dB 32.2dBaf -35.4dBOp  04:23:24 19.4dB UW8SM
137566.516Hz  8.2dB 32.9dBaf -34.8dBOp  05:11:15 21.0dB UW8SM
137566.531Hz  5.6dB 32.3dBaf -35.4dBOp  05:59:06 18.2dB UW8SM

This time coherent correlation did not produce more hits, so only incoheren= t is shown. In the spectrogram, some 6.25 Hz Loran lines ended early becaus= e Slonim (my closest GRI 8000 station) went off air at 21:05.

BTW the "candidate list" used for correlation is currently WD2XES, G3XDV, P= A0A, M0BMU, SM6BHZ, G0NBD, DF6NM, DK7FC, VO1NA, UA4WPF, DF2JP, G8HUH, RN3AG= C, UA0AET, R7NT, G4WGT, UW8SM. Please send a note if you intend to transmit= Opera-32 on LF and would like to be included.
 
Best 73, Markus (DF6NM)


-----Urspr=C3=BCngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>; rsgb_lf_group <r= sgb_lf_group@yahoogroups.co.uk>
Verschickt: Di, 22 Jan 2013 6:43 pm
Betreff: Op32 correlation detection: RN3AGC, UA4WPF, UW8SM

Last night= Jan-21/22 I tried again to detect Opera signals using the "deep search" co= rrelatiopn technique.
 
Attached is a spectrogram covering the 137.5 to 137.6 kHz segment in 0= .477 mHz FFT resolution. At first, the strong WSPR signal from DK7FC on 137= .607 completely defeated the noise blanker. This could later be mitigated b= y inserting a steep bandfilter in SpecLab. The spectrum shows a large numbe= r of peaks, most of them from active Loran chains, eg. 6.25 Hz multiples fr= om GRI 8000.
 
The FFT results were exported in ten minute intervals and processed of= fline by my experimental Opera detection software, which searches for non-L= oran peaks and correlates the spectrum in their vicinity against several kn= own Opera signatures. Phase-coherent and incoherent searches were done in t= wo separate runs. This produced the following hits:
 
coherent:
 
 frequency       peak   &= nbsp; focused    Opera       end time&nb= sp;  corr.  callsign 
137536.953Hz 10.0dB 20.7dBaf -46.9dBOp  20:42:13 15.5dB UA4WPF
137536.953Hz  7.4dB 17.4dBaf -50.2dBOp  21:18:12 16.0dB UA4WPF 137556.953Hz  6.2dB 18.1dBaf -49.5dBOp  21:26:11 14.1dB RN3AGC 137556.938Hz 14.2dB 26.2dBaf -41.4dBOp  22:13:29 17.5dB RN3AGC
137556.953Hz 15.4dB 27.3dBaf -40.3dBOp  23:09:31 20.1dB RN3AGC
 
incoherent:
 
 frequency        peak   = focused    Opera       end tim= e   corr.  callsign 
137556.938Hz  5.6dB 28.6dBaf -39.0dBOp  22:13:29 17.8dB RN3AGC 137556.938Hz  6.5dB 32.7dBaf -34.9dBOp  23:09:31 20.1dB RN3AGC 137562.547Hz  4.6dB 31.5dBaf -36.1dBOp  00:08:18 15.8dB UW8SM
137562.547Hz  6.5dB 27.3dBaf -40.4dBOp  02:31:47 14.4dB UW8SM
137562.531Hz  5.5dB 32.7dBaf -34.9dBOp  03:19:38 14.6dB UW8SM
137562.563Hz  5.3dB 31.7dBaf -36.0dBOp  04:07:26 19.7dB UW8SM
137562.547Hz  6.1dB 33.1dBaf -34.5dBOp  05:43:08 19.6dB UW8SM
 
UA4WPF and RN3AGC seem to be phase continuous whereas UW8SM could only= be detected in incoherent mode. Note that in the current state the SNR cal= ibration still has large uncertainties, but the coherent mode can clearly s= ee much deeper.
 
Unfortunately UW8SM seems to be sitting right on top of a Russian Lora= n line on 137562.5. A slight shift in frequency (eg. 0.5 Hz) would pro= bably provide better coverage for him.
 
Best 73,
Markus (DF6NM)


-----Urspr=C3=BCngliche Mitteilung-----
Von: Markus Vester <markusvester= @aol.com>
An: rsgb_lf_group <rsgb_= lf_group@blacksheep.org>
Verschickt: Sa, 8 Dez 2012 7:03 pm
Betreff: R7NT Op32 correlation detection

Alex, LF,
 
the Op32 signal from R7NT was well visible= in the 21 mHz TA window. I made two recordings of a 2 Hz band around the a= nounced frequency, one from 22:08 to 08:11 UT and another one in dayli= ght from 12:06 to 15:25. Then I ran both through my Opera correlation = detector, see attached result.
 
The first two lines are a list o= f several known active Opera stations. Each of these was tried in the&= nbsp;cross correlation procedure. T= he lines below that are the successful hits. Going from left to r= ight, the printed output contains:
 
 time window for correlation (decimal= UT hours before / after midnight last night),
 frequency of carrier peak,
 uncalibrated "raw" dB of detected ca= rrier,
 carrier SNR after a "carrier autofoc= us" procedure, which removes small amouts of chirp and optimally weigh= s the amplitude for QSB,
 SNR on the Opera scale (ie. carrier = in 2.5 kHz minus 4 dB),
 either c or i for a coherent or= incoherent demodulation,
 UT hour of the winning correlation p= eak (corresponds to the start of the transmission),
 SNR of correlation peak in time= domain,
 callsign of the winner of the correl= ation procedure.
 
Now running a recording on 137567 to look = for UA0AET tonight.
 
Best 73,
Markus (DF6NM)
 
 
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