Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 983B238000097; Tue, 9 Apr 2013 19:51:18 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1UPhoe-0001KP-60 for rs_out_1@blacksheep.org; Wed, 10 Apr 2013 00:19:04 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1UPhod-0001KG-K5 for rsgb_lf_group@blacksheep.org; Wed, 10 Apr 2013 00:19:03 +0100 Received: from smtpout5.wanadoo.co.uk ([80.12.242.80] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1UPhob-0005SY-FU for rsgb_lf_group@blacksheep.org; Wed, 10 Apr 2013 00:19:02 +0100 Received: from AGB ([2.26.47.108]) by mwinf5d62 with ME id MzJf1l00V2L2twJ03zJf4A; Wed, 10 Apr 2013 01:18:40 +0200 Message-ID: <4A11F9E59A2D4936B0BDE11712A115D6@AGB> From: "Graham" To: References: <51640505.8010600@iup.uni-heidelberg.de> <44E37B4DD1EE4EE1A2E67CCC1D5C79CE@White> In-Reply-To: <44E37B4DD1EE4EE1A2E67CCC1D5C79CE@White> Date: Wed, 10 Apr 2013 00:18:39 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 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: ''within easy reach of an Opera-32 correlation detection'' ... That could also mean a slightly less powerful , may be 10 dB signal, originating from a similar location , over the same path , may provide a OP32 correlation detection and be the first positive call sign ID EU>VK ... ? [...] 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 [80.12.242.80 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 310131a5e532565f108a820138314750 Subject: Re: LF: Best results so far from Germany to Tasmania Content-Type: multipart/alternative; boundary="----=_NextPart_000_0085_01CE3580.F36E2110" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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: 3039ac1d604a5164a9757650 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0085_01CE3580.F36E2110 Content-Type: text/plain; charset="ISO-8859-2" Content-Transfer-Encoding: quoted-printable ''within easy reach of an Opera-32 correlation detection'' ... That could also mean a slightly less powerful , may be 10 dB = signal, originating from a similar location , over the same path = , may provide a OP32 correlation detection and be the first = positive call sign ID EU>VK ... ? G :-,) From: Markus Vester=20 Sent: Tuesday, April 09, 2013 7:49 PM To: rsgb_lf_group@blacksheep.org=20 Cc: Vasily Savchenko ; Edgar J Twining ; David - VK2DDI=20 Subject: Re: LF: Best results so far from Germany to Tasmania Edgar, Stefan, this is an outstanding result! Great to see what is possible on LF, = given a good antenna, a quiet location, and patience paired with = persistence. Did you by chance have a look at the best SNR in the spectrum plot? The = fat parts of the trace might have been 12 or even 15 dB, in a 7.5 mHz = FFT. This would put it within easy reach of an Opera-32 correlation = detection, and possibly even close to a WSPR-15 decode. Alan, I assume that DST would affect attenuation globally, without = preference for one direction or another. Or could an eastern path be = better during one night, versus westward in another? Best 73, Markus (DF6NM) From: Stefan Sch=E4fer=20 Sent: Tuesday, April 09, 2013 2:09 PM To: rsgb_lf_group@blacksheep.org=20 Cc: Vasily Savchenko ; Edgar J Twining ; David - VK2DDI=20 Subject: LF: Best results so far from Germany to Tasmania LF,=20 Last evening there was excellent LF propagation from EU to VK. Edgar J. = Twining (SWL) was watching the LF DX window for several weeks now. The = season on that path in spring (EU) 2013 was very poor and we already = thought that the season is over. However yesterday the path was open for = a exceptional long time and the S/N was very good! Transmissions were = done in DFCW-180. I've been on air for several days now and such a = result is most probably possible for 1 time in the year or maybe 2 = years. These are the results: My signal: = https://dl.dropbox.com/u/19882028/LF/DK7FC%20WR%20ver%20spectrum%20-18.PN= G DCF39: = https://dl.dropbox.com/u/19882028/LF/DCF39%20WR%20ver%20spectrum%20-14.PN= G DCF39 plot: = https://dl.dropbox.com/u/19882028/LF/DCF39%20WR%20ver%20plot%202013-04-08= %2021-30.jpg The path is 16806 km, = http://no.nonsense.ee/qthmap/?qth=3DQE37PD&from=3Djn49ik00wd It shows once again that it is always worth to transmit and to = receive/watch for exceptional conds(x) on the bands! Many thanks to Edgar for his continuous patience and interest to receive = on 137 kHz from the other side of the world! 73, Stefan/DK7FC ------=_NextPart_000_0085_01CE3580.F36E2110 Content-Type: text/html; charset="ISO-8859-2" Content-Transfer-Encoding: quoted-printable
 ''within easy reach of an Opera-32 correlation = detection''
 
... That  could  also  mean  = a =20 slightly  less  powerful , may be  10 dB  signal,=20 originating  from a  similar  location ,  over  = the  same  path  , may  provide a  OP32 =20 correlation  detection  and be the  first  =20 positive call sign  ID  EU>VK  ... ?
 
G :-,)
 
 

From: Markus Vester
Sent: Tuesday, April 09, 2013 7:49 PM
To: rsgb_lf_group@blacksheep.org= =20
Cc: Vasily Savchenko ; Edgar J Twining = ; David - VK2DDI
Subject: Re: LF: Best results so far from Germany to=20 Tasmania

Edgar, Stefan,
 
this is an outstanding result! Great to = see what is possible on LF, given a good antenna, a quiet location, = and patience paired with persistence.
 
Did you by chance have a look at the = best SNR in=20 the spectrum plot? The fat parts of the trace might have = been 12=20 or even 15 dB, in a 7.5 mHz FFT. This would put it within = easy=20 reach of an Opera-32 correlation detection, and possibly even = close to=20 a WSPR-15 decode.
 
Alan, I assume that DST would affect = attenuation=20 globally, without preference for one direction or another. Or = could an=20 eastern path be better during one night, versus westward in=20 another?
 
Best 73,
Markus (DF6NM)
 

From: Stefan = Sch=E4fer
Sent: Tuesday, April 09, 2013 2:09 PM
To: rsgb_lf_group@blacksheep.org= =20
Cc: Vasily Savchenko ; Edgar J Twining = ; David - VK2DDI
Subject: LF: Best results so far from Germany to=20 Tasmania

LF, =

Last=20 evening there was excellent LF propagation from EU to VK. Edgar J. = Twining (SWL)=20 was watching the LF DX window for several weeks now. The season on that = path in=20 spring (EU) 2013 was very poor and we already thought that the season is = over.=20 However yesterday the path was open for a exceptional long time and the = S/N was=20 very good! Transmissions were done in DFCW-180. I've been on air for = several=20 days now and such a result is most probably possible for 1 time in the = year or=20 maybe 2 years.

These are the results:
My signal: https://dl.dropbox.com/u/19882028/LF/DK7FC%20WR%20ver%20spectr= um%20-18.PNG
DCF39:=20 https://dl.dropbox.com/u/19882028/LF/DCF39%20WR%20ver%20spectr= um%20-14.PNG
DCF39=20 plot: https://dl.dropbox.com/u/19882028/LF/DCF39%20WR%20v= er%20plot%202013-04-08%2021-30.jpg

The=20 path is 16806 km, http://no.nonsense.ee/qthmap/?qth=3DQE37PD&from=3Djn49ik00wd
=
It=20 shows once again that it is always worth to transmit and to = receive/watch for=20 exceptional conds(x) on the bands!

Many thanks to Edgar for his=20 continuous patience and interest to receive on 137 kHz from the other = side of=20 the world!

73, Stefan/DK7FC
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