Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dl04.r1000.mx.aol.com (Internet Inbound) with ESMTP id 05A46380000A5; Tue, 16 Oct 2012 18:35:00 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TOFiD-0005c2-68 for rs_out_1@blacksheep.org; Tue, 16 Oct 2012 23:34:09 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TOFiC-0005bt-Il for rsgb_lf_group@blacksheep.org; Tue, 16 Oct 2012 23:34:08 +0100 Received: from mail-bk0-f43.google.com ([209.85.214.43]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1TOFiA-0007Rd-0d for rsgb_lf_group@blacksheep.org; Tue, 16 Oct 2012 23:34:07 +0100 Received: by mail-bk0-f43.google.com with SMTP id w5so3135355bku.16 for ; Tue, 16 Oct 2012 15:34:05 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=NcFl+gTwqqAdiIeG+KkXB1P/ym1TLMMDXTujTO8IN/g=; b=sv7EjJSP9wqoaO4iByGMTLl2ewcUU0hnq35ILwbLe4rMdufrLbASH87P1fngU108AL YB7VTu3UuQF6PNerXJyUc9QJsRWbIOiBHhTWZSkIXXP20B/EqkCkAWjMURcVvku9Cd7P Q6wgSBXBmrPgl9JXBAB4ZkUGcQ0Ymi3p72sTLrvSFedbbN3PxD0skukIDWilI5T+8sOV lCflMg/GFvNiG/qX6Ng2eMtxKTqLm4oc8rF4RJwu2KsUFgESL0lUcXxojBzzrs4/aXhn 2hAZgRyXEibhU3+RPiCkaxaZikuBj3C46Y2fB7K592nKzD16GCBUTTQ2JNJvps9G1iVw HmCg== MIME-Version: 1.0 Received: by 10.204.5.206 with SMTP id 14mr4546633bkw.79.1350426844933; Tue, 16 Oct 2012 15:34:04 -0700 (PDT) Received: by 10.204.170.136 with HTTP; Tue, 16 Oct 2012 15:34:04 -0700 (PDT) In-Reply-To: <507D9B44.4020803@iup.uni-heidelberg.de> References: <507D5247.5040100@iup.uni-heidelberg.de> <3clq785amof88d6frrqe43vdhflt34h0p1@4ax.com> <507D57F6.7090809@iup.uni-heidelberg.de> <507D5F1D.1060007@iup.uni-heidelberg.de> <507D9B44.4020803@iup.uni-heidelberg.de> Date: Tue, 16 Oct 2012 23:34:04 +0100 Message-ID: From: Roger Lapthorn To: rsgb_lf_group@blacksheep.org X-Spam-Score: -0.7 (/) 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: I hope to be back on 136kHz TX quite soon (some weeks) Stefan. Copying my signal will be a real challenge, but I will of course look for other WSPRers and OPERA goers. 73s Roger G3XBM On 16 October 2012 18:37, Stefan Schäfer < wrote: [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.214.43 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (rogerlapthorn[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 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: c1dcf088149efa0360827745859da381 Subject: Re: LF: WSPR on LF Content-Type: multipart/alternative; boundary=001517588bb6632d0c04cc34c0a9 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=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-dl04.r1000.mx.aol.com ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d4ad2507de1146482 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --001517588bb6632d0c04cc34c0a9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I hope to be back on 136kHz TX quite soon (some weeks) Stefan. Copying my signal will be a real challenge, but I will of course look for other WSPRers and OPERA goers. 73s Roger G3XBM On 16 October 2012 18:37, Stefan Sch=E4fer < Stefan.Schaefer@iup.uni-heidelberg.de> wrote: > LF, > > Does someone join in on LF WSPR? There are many active RX stations! > Eddie/G3ZJO, what about you? Your results have been good on MF. On LF the > ERP will be 10 dB lower (ish) if the TX pwr is the same but i expect that > you will have quite good chances in the groundwave range. > > There is a very high LF/MF and digimode appliance operator density in the > UK ;-) Also in Germany and the Netherlands and France. It looks like we > (these countries) make the highest density of active LF/MF amateurs in th= e > world, except Tokyo city of course :-) > > 73, Stefan/DK7FC > > > Am 16.10.2012 15:48, schrieb George Szymanski: > > You never know Stefan I might get a weak trace from you overnight! >> >> I'm too stupid to use Spec lab! >> I will try the Twente receiver but my internet is so very slow it >> might not work well enough. >> >> 73 de George, DU1GM >> >> >> On Tue, 16 Oct 2012 15:20:29 +0200, you wrote: >> >> >> >>> Hi George, >>> >>> There is no chance for you to display normal WSPR from me over that >>> distance in a spectrogram. Maybe you could display WSPR-32 but this is >>> still to optimistic i think. We really have to start in something like >>> QRSS-120 or DFCW-180 and then see what comes out. >>> >>> I have no idea how to set Argo for optimal displaying DFCW-180 since i >>> don't use the new version of the program. Furthermore i am very >>> convinced by using Spectrum Lab for LF/MF detection. Yes, the program i= s >>> much more complex but it offers some essential features! The band >>> limiting and noise blanking will reduce the QRN very significantly! The >>> improvement can vary from a few to 10 dB, depending on the kind of >>> noise. I will try to generate a new spectrogram soon, showing this >>> effect. >>> I don't know if Argo allows noise cancelling. But if you loose say 6 dB >>> SNR, that makes a difference from invisible to O copy. >>> >>> Did you try the Twente WEB SDR link i sent you? This is also useful to >>> check if the reference signal you're using is available at present. I'm >>> daily listening to AM BCD stns for many hours a day :-) >>> >>> As said, if you like i can give you some advice how to run a DCF-plot. >>> >>> 73, Stefan/DK7FC >>> >>> >>> >>> >> >> > > --=20 http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk https://sites.google.com/site/sub9khz/ http://qss2.blogspot.com/ --001517588bb6632d0c04cc34c0a9 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I hope to be back on 136kHz TX quite soon (some weeks) Stefan. Copying my s= ignal will be a real challenge, but I will of course look for other WSPRers= and OPERA goers.

73s
Roger G3XBM


On 16 October 2012 18:37, Stefan Sch=E4fer <Stefan.Sch= aefer@iup.uni-heidelberg.de> wrote:
LF,

Does someone join in on LF WSPR? There are many active RX stations! Eddie/G= 3ZJO, what about you? Your results have been good on MF. On LF the ERP will= be 10 dB lower (ish) if the TX pwr is the same but i expect that you will = have quite good chances in the groundwave range.

There is a very high LF/MF and digimode appliance operator density in the U= K ;-) Also in Germany and the Netherlands and France. It looks like we (the= se countries) make the highest density of active LF/MF amateurs in the worl= d, except Tokyo city of course :-)

73, Stefan/DK7FC


Am 16.10.2012 15:48, schrieb George Szymanski:

You never know Stefan I might get a weak trace from you overnight!

I'm too stupid to use Spec lab!
I will try the Twente receiver but my internet is so very slow it
might not work well enough.

73 de George, DU1GM


On Tue, 16 Oct 2012 15:20:29 +0200, you wrote:

=A0 =A0
Hi George,

There is no chance for you to display normal WSPR from me over that
distance in a spectrogram. Maybe you could display WSPR-32 but this is
still to optimistic i think. We really have to start in something like
QRSS-120 or DFCW-180 and then see what comes out.

I have no idea how to set Argo for optimal displaying DFCW-180 since i
don't use the new version of the program. Furthermore i am very
convinced by using Spectrum Lab for LF/MF detection. Yes, the program is much more complex but it offers some essential features! The band
limiting and noise blanking will reduce the QRN very significantly! The
improvement can vary from a few to 10 dB, depending on the kind of
noise. =A0I will try to generate a new spectrogram soon, showing this effec= t.
I don't know if Argo allows noise cancelling. But if you loose say 6 dB=
SNR, that makes a difference from invisible to O copy.

Did you try the Twente WEB SDR link i sent you? This is also useful to
check if the reference signal you're using is available at present. I&#= 39;m
daily listening to AM BCD stns for many hours a day :-)

As said, if you like i can give you some advice how to run a DCF-plot.

73, Stefan/DK7FC


=A0 =A0 =A0
=A0 =A0




--
=A0http://g3xbm-qrp.blog= spot.com/
http:= //www.g3xbm.co.uk
https:= //sites.google.com/site/sub9khz/
http://qss2.blogspo= t.com/


--001517588bb6632d0c04cc34c0a9--