Return-Path: Received: from mtain-de05.r1000.mx.aol.com (mtain-de05.r1000.mx.aol.com [172.29.64.205]) by air-mb04.mail.aol.com (v129.10) with ESMTP id MAILINMB042-a26e4dc1130f241; Wed, 04 May 2011 04:49:19 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-de05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9D9793800008F; Wed, 4 May 2011 04:49:16 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QHXkK-0006Hl-Ns for rs_out_1@blacksheep.org; Wed, 04 May 2011 09:47:48 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QHXkK-0006Hc-91 for rsgb_lf_group@blacksheep.org; Wed, 04 May 2011 09:47:48 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QHXkI-0006n2-FK for rsgb_lf_group@blacksheep.org; Wed, 04 May 2011 09:47:48 +0100 Received: from ix.urz.uni-heidelberg.de (cyrus-portal.urz.uni-heidelberg.de [129.206.100.176]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id p448ljLo029135 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 4 May 2011 10:47:45 +0200 Received: from extmail.urz.uni-heidelberg.de (extmail.urz.uni-heidelberg.de [129.206.100.140]) by ix.urz.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id p448liT6022138 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 4 May 2011 10:47:45 +0200 Received: from [129.206.205.136] (vpn205-136.rzuser.uni-heidelberg.de [129.206.205.136]) by extmail.urz.uni-heidelberg.de (8.13.4/8.13.1) with ESMTP id p448lhvx026557 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 4 May 2011 10:47:44 +0200 Message-ID: <4DC112B8.6020201@iup.uni-heidelberg.de> Date: Wed, 04 May 2011 10:47:52 +0200 From: =?ISO-8859-2?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: OK2BVG_8970 Content-Type: multipart/alternative; boundary="------------060907000700060401010307" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.4 required=5.0 tests=HTML_30_40,HTML_MESSAGE, HTML_TITLE_EMPTY 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: 3039ac1d40cd4dc1130c56e0 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------060907000700060401010307 Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit GM Lubos, VLF, You are strong visible at OE3GHB and Paul Nicholson. The QRN is pretty low this morning, just like yesterday. There seems to be a trace slightly above 8970.04 Hz on my grabber but i still haven't identified the "K". There were some changes in the latest SL Version (V2.76b16 and above) on the noise blanker. I tried to find better settings to bring out a signal of the noise, without further success. On http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html you find 2 424 uHz windows running at exactly the same USR file but the above window is a SL instance with the old noise blanker (b09) and below you'll find a SL session with the new blanker (b18). It seems the new version allows a VERY slightly improved signal, in the range of 1 dB or below. So not really a milestone but at least no disadvantage of the new version and the old USR files. Several parameter adjustments resulted in worse or equal SNR, so it still seems to be very close to optimal... Thank you for the test signal! That applies for Uwe/DJ8WX too, of course. Best 73, Stefan/DK7FC Am 04.05.2011 05:42, schrieb Lubos OK2BVG: > Hello VLF! > The weather is good, so I will be active on 8970Hz tomorrow: > > ***INFO*** > Date: 04.05.2011 > Time: 05:00 UT - 11:00 UT > Antenna: Marconi L 24m up + 220m top load > PA: 120W > Identification: K (2x) > Mode: DFCW 3000 > FRQ: 8970.040 (+/- some few mHz :-) > Shift: 10mHz > > > Lubos, OK2BVG --------------060907000700060401010307 Content-Type: text/html; charset=ISO-8859-2 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id p448ljLo029135 GM Lubos, VLF,

You are strong visible at OE3GHB and Paul Nicholson. The QRN is pretty low this morning, just like yesterday. There seems to be a trace slightly above 8970.04 Hz on my grabber but i still haven't identified the "K".

There were some changes in the latest SL Version (V2.76b16 and above) on the noise blanker. I tried to find better settings to bring out a signal of the noise, without further success. On http://www.iup.uni-heidelberg.de/s= chaefer_vlf/DK7FC_VLF_Grabber2.html you find 2 424 uHz windows running at exactly the same USR file but the above window is a SL instance with the old noise blanker (b09) and below you'll find a SL session with the new blanker (b18). It seems the new version allows a VERY slightly improved signal, in the range of 1 dB or below. So not really a milestone but at least no disadvantage of the new version and the old USR files. Several parameter adjustments resulted in worse or equal SNR, so it still seems to be very close to optimal...

Thank you for the test signal! That applies for Uwe/DJ8WX too, of course.

Best 73, Stefan/DK7FC

Am 04.05.2011 05:42, schrieb Lubos OK2BVG:
Hello= VLF!
The weather is good, so I will be active on 8970Hz tomorrow:

***INFO= ***
Date: 04.05.2011
Time: 05:00 UT - 11:00 UT
Antenna= : Marconi L 24m up + 220m top load
PA: 120= W =A0
Identif= ication: K (2x)
Mode:= DFCW 3000
FRQ: 8970.040 (+/- some few mHz :-)
Shift: 10mHz


Lubos, OK2BVG
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