Return-Path: Received: from mtain-da02.r1000.mx.aol.com (mtain-da02.r1000.mx.aol.com [172.29.64.74]) by air-me01.mail.aol.com (v129.4) with ESMTP id MAILINME012-8ba14d39681596; Fri, 21 Jan 2011 06:03:49 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da02.r1000.mx.aol.com (Internet Inbound) with ESMTP id A51E2380001D3; Fri, 21 Jan 2011 06:03:47 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PgEl5-00049d-ES for rs_out_1@blacksheep.org; Fri, 21 Jan 2011 11:02:23 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PgEl3-00049U-Uz for rsgb_lf_group@blacksheep.org; Fri, 21 Jan 2011 11:02:21 +0000 Received: from out1.ip09ir2.opaltelecom.net ([62.24.128.245]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PgEl0-0003xl-Is for rsgb_lf_group@blacksheep.org; Fri, 21 Jan 2011 11:02:21 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av8EADv2OE1cHYiN/2dsb2JhbACEE44Yg2yOTXOuPJBGhFx0BIFfjQA X-IronPort-AV: E=Sophos;i="4.60,357,1291593600"; d="scan'208,217";a="465702345" Received: from unknown (HELO xphd97xgq27nyf) ([92.29.136.141]) by out1.ip09ir2.opaltelecom.net with SMTP; 21 Jan 2011 11:02:11 +0000 Message-ID: <001601cbb95a$a6cfc2e0$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <003401cbb8b7$f82129c0$0401a8c0@xphd97xgq27nyf> <413650202.736292.1295540964589.JavaMail.fmail@mwmweb078> <005001cbb8cc$db1114c0$0401a8c0@xphd97xgq27nyf> <000901cbb8f9$aa22b580$8d01a8c0@JAYDELL> Date: Fri, 21 Jan 2011 11:02:10 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: Dream 9 (Alpha check) Content-Type: multipart/alternative; boundary="----=_NextPart_000_0013_01CBB95A.A68F5E80" 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=HTML_40_50,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-sid: 3039ac1d404a4d39681335f1 X-AOL-IP: 195.171.43.25 ------=_NextPart_000_0013_01CBB95A.A68F5E80 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Markus This is old info. Has there been any changes? I am getting strong sign= als but the sequence on 11905 is different, whereas 14881 looks ok de mal/g3kev ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Friday, January 21, 2011 12:40 AM Subject: Re: LF: Dream 9 (Alpha check) Hi Jay, as far as I can see, they are using the "new RSDN-20 transmission se= quence" as shown on www.vlf.it, but with Revda and Seyda off air. Your= recording has two consecutive dashes from Krasnodar (K) and Khabarovs= k (E); Novosibirsk (N) is the most distant from you and not audible. The attached image shows the relative phases of dashes from K and N= as seen here, while E was very weak at that time of day. On 14881, th= e phase of the second N dash is offset from the first. It is also swit= ched 180=C2=B0 from frame to frame, which is why it is sometimes erron= eously listed at 0.139 Hz offset. On 11905, one of the K dashes appear= s purple instead of bright blue. This is the mysterious modulation, co= nsisting of an arbitrary phase shift applied to one dash in every ten= to thirty frames. Best 73, Markus (DF6NM) RSDN-20 (Alpha) transmission scheme,=20 noted on 10-03-16 14:30 0 3.6s +-----------+ 15.625Hz |K E N N . .| 14.881kHz x 20/21 |. N E K . .| 12.649kHz x 17/21 |N . K E . .| 11.905kHz x 16/21 +-----------+ K =3D Krasnodar (West) N =3D Novosibirsk (Center) E =3D Khabarovsk (Far East) A.) NOVOSIBIRSK 55:45:22.0 N 84:26:52.4 E B.) KRASNODAR 45:24:17.9 N 38:09:29.0 E C.) KHABAROVSK 50:04:23.9 N 136:36:24.1 E D.) REVDA 68:02:07.8 N 34:41:00.0 E I.) SEYDA 39:28:16.0 N 62:43:07.3 E From: jrusgrove@comcast.net=20 Sent: Friday, January 21, 2011 12:27 AM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Dream 9 (Alpha check) Marcus Do you have current information on the Alpha signals - sequence vs.= location? Normally hear two of the transmitters like this recorded a= few minutes ago on 11905. There's info at vlf.it but not sure it is= up to date. Any info would be appreciated. http://www.w1vd.com/capture/Alpha012011.mp3 Jay W1VD WD2XNS WD2XGR/2 =20 ----- Original Message -----=20 From: Markus Vester=20 To: rsgb_lf_group@blacksheep.org=20 Sent: Thursday, January 20, 2011 6:04 PM Subject: Re: LF: Dream 9 (Alpha check) A quick receive check is whether you can actually hear the most di= stant Alpha transmitter as well, ie. all three dashes on 11.905 kHz du= ring the evening.=20 Another test is whether you can occasionally see -40 dB modulation= sidebands in a milliHz-resolution spectrogram. These appear irregular= ly (often for a few hours around 6 UT), and are caused by phase altera= tions on some of the Krasnodar dashes. This is probably some sort of= coded information, piggybacked on the navigation system. Best 73, Markus (DF6NM) ... ------=_NextPart_000_0013_01CBB95A.A68F5E80 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Markus
This is old info. Has there been any= changes? I am=20 getting strong signals but the sequence on 11905 is different, whereas= 14881=20 looks ok
de mal/g3kev
 
----- Original Message -----
Sent: Friday, January 21, 201= 1 12:40=20 AM
Subject: Re: LF: Dream 9 (Alp= ha=20 check)

Hi Jay,
 
as far as I can see, they are using= the "new=20 RSDN-20 transmission sequence" as shown on www.vlf.it, but with Revda and Sey= da off air.=20 Your recording has two consecutive dashes from Krasnodar (K)&nb= sp;and=20 Khabarovsk (E); Novosibirsk (N) is the most distant from you an= d not=20 audible.
 
The attached image shows the relati= ve phases=20 of dashes from K and N as seen here, while E was very= weak at=20 that time of day. On 14881, the phase of the second N dash is offset= from the=20 first. It is also switched 180=C2=B0 from frame to frame, which= is why it is=20 sometimes erroneously listed at 0.139 Hz offset. On 11905, one of the K dashes appears&= nbsp;purple instead of=20 bright blue. This is the mysterious modulation, consisting of= an=20 arbitrary phase shift applied to one dash in every ten to thirt= y=20 frames.
 
Best 73,
Markus (DF6NM)
 
RSDN-20 (Alpha) t= ransmission scheme, =
noted on 10-03-16 14:30<= /FONT>
 
0   &= nbsp;     =20 3.6s
+-----------+        = ;    =20 15.625Hz
|K E N N . .|  14.881kHz  x 20/21
|. N E K= . .| =20 12.649kHz  x 17/21
|N . K E . .|  11.905kHz  x=20 16/21
+-----------+
 
K =3D Krasnodar (West)N =3D=20 Novosibirsk (Center)
E =3D Khabarovsk (Far East)
 
A.) NOVOSIBIRSK 55:45:22= .0=20 N   84:26:52.4 E
B.) KRASNODAR   45:24:17.9= =20 N   38:09:29.0 E
C.) KHABAROVSK  50:04:23.9 N = ;=20 136:36:24.1 E
D.) REVDA       68:02= :07.8=20 N   34:41:00.0 E
I.) SEYDA     = ; =20 39:28:16.0 N   62:43:07.3 E
= <= BR>
Marcus
 
Do you have current information on= the Alpha=20 signals - sequence vs. location? Normally hear two of the transmitte= rs like=20 this recorded a few minutes ago on 11905. There's info at vlf.it but= not sure=20 it is up to date. Any info would be appreciated.
 
 
Jay W1VD  WD2XNS =20 WD2XGR/2    
----- Original Message -----
Sent: Thursday, January 20,= 2011 6:04=20 PM
Subject: Re: LF: Dream 9 (A= lpha=20 check)

A quick receive check is whe= ther you can=20 actually hear the most distant Alpha transmitter&nb= sp;as=20 well, ie. all three dashes on 11.905 kHz during the evening.= =20
 
Another test is whether you=20 can occasionally see -40 dB modulation sidebands in = ;a=20 milliHz-resolution spectrogram. These appear irregularly= (often=20 for a few hours around 6 UT), and are caused by phase=20 alterations on some of the Krasnodar dashes. This is&nbs= p;probably=20 some sort of coded information, piggybacked on the navigation=20 system.
 
Best 73,
Markus (DF6NM)
...
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