Return-Path: Received: from mtain-dc02.r1000.mx.aol.com (mtain-dc02.r1000.mx.aol.com [172.29.64.130]) by air-mc07.mail.aol.com (v129.10) with ESMTP id MAILINMC071-a97b4dc1a690397; Wed, 04 May 2011 15:18:40 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dc02.r1000.mx.aol.com (Internet Inbound) with ESMTP id A3D9138000088; Wed, 4 May 2011 15:18:33 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1QHhZW-0000C0-N2 for rs_out_1@blacksheep.org; Wed, 04 May 2011 20:17:18 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1QHhZV-0000Br-8n for rsgb_lf_group@blacksheep.org; Wed, 04 May 2011 20:17:17 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1QHhZT-0000zJ-OQ for rsgb_lf_group@blacksheep.org; Wed, 04 May 2011 20:17:17 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id p44JHE2M029290 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 4 May 2011 21:17:14 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id p44JHEiS023729 for ; Wed, 4 May 2011 21:17:14 +0200 Message-ID: <4DC1A5E0.9040905@iup.uni-heidelberg.de> Date: Wed, 04 May 2011 21:15:44 +0200 From: =?ISO-8859-2?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: ,<4DC112B8.6020201@iup.uni-heidelberg.de> 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="------------040000090509080901000809" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,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: 3039ac1d40824dc1a6895334 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none X-Mailer: Unknown (No Version) --------------040000090509080901000809 Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit Hello Lubos, Still, there is a clear trace just above 8970.04 Hz but the letter "K" is not really readable since the SNR is poor and the element length (3000) is a bit short then. 3 dB QRO would make things clear here i think ;-) 73, Stefan Am 04.05.2011 20:15, schrieb Lubos OK2BVG: > GE, Stefan! > I am pleased, that my signal was seen in UK, that is great! The > weather was fine and my PA worked without problems. > Thanks for your coments about SL. I must think about that. > > My signal was not seen on your grabber, hm...may be sometimes in the > future. > > 73! > > Lubos, OK2BVG > > ------------------------------------------------------------------------ > Date: Wed, 4 May 2011 10:47:52 +0200 > From: schaefer@iup.uni-heidelberg.de > To: rsgb_lf_group@blacksheep.org > Subject: Re: LF: OK2BVG_8970 > > 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 > --------------040000090509080901000809 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 p44JHE2M029290 Hello Lubos,

Still, there is a clear trace just above 8970.04 Hz but the letter "K" is not really readable since the SNR is poor and the element length (3000) is a bit short then. 3 dB QRO would make things clear here i think ;-)

73, Stefan


Am 04.05.2011 20:15, schrieb Lubos OK2BVG:
GE, Stefan!
I am pleased, that my signal was seen in UK, that is great! The weather was fine and my PA worked without problems.
Thanks for your coments about SL. I must think about that.

My signal was not seen on your grabber, hm...may be sometimes in the future.

73!

Lubos, OK2BVG

Date: Wed, 4 May 2011 10:47:52 +0200
From: schaefer@iup.uni-heidelberg.de
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: OK2BVG_8970

Text zpr=E1vy 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_VL= F_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:
He= llo VLF!
Th= e weather is good, so I will be active on 8970Hz tomorrow:
**= *INFO***
Da= te: 04.05.2011
Ti= me: 05:00 UT - 11:00 UT
An= tenna: Marconi L 24m up + 220m top load
PA= : 120W =A0
Id= entification: K (2x)
Mo= de: DFCW 3000
FR= Q: 8970.040 (+/- some few mHz :-)
Sh= ift: 10mHz
Lu= bos, OK2BVG
--------------040000090509080901000809--