Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk04.r1000.mx.aol.com (Internet Inbound) with ESMTP id A1FC93800009A; Thu, 15 Mar 2012 10:02:31 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1S8BF5-0001GT-AO for rs_out_1@blacksheep.org; Thu, 15 Mar 2012 14:01:23 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1S8BF4-0001GK-MJ for rsgb_lf_group@blacksheep.org; Thu, 15 Mar 2012 14:01:22 +0000 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1S8BF1-0007T6-C1 for rsgb_lf_group@blacksheep.org; Thu, 15 Mar 2012 14:01:22 +0000 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 q2FE1HIf002505 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 15 Mar 2012 15:01:17 +0100 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 q2FE1GH5025596; Thu, 15 Mar 2012 15:01:16 +0100 Message-ID: <4F61F61E.5000302@iup.uni-heidelberg.de> Date: Thu, 15 Mar 2012 15:01:02 +0100 From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= 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 CC: Dimitrios Tsifakis , David - VK2DDI , Steve - VK2XV References: <8CED0A22DE2C81B-268C-3E6C@webmail-d131.sysops.aol.com> In-Reply-To: <8CED0A22DE2C81B-268C-3E6C@webmail-d131.sysops.aol.com> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: DK7FC in VK? Content-Type: multipart/alternative; boundary="------------000605090801050203010700" 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_20_30, HTML_FONTCOLOR_UNKNOWN,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-SCORE: 1:2:467545344:93952408 x-aol-sid: 3039ac1db4084f61f6775376 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------000605090801050203010700 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id q2FE1HIf002505 Thank you Alan, Markus, Henny, Jean-Pierre, Jay, It took a while until i belived that this is/was possible. Thank you for=20 the confirmations. I was sceptic if the LF world would call this a valid=20 detection. Now i hope to get better results and a even better proof today. David/VK2DDI who runs the well known Berry Mountain Grabber will watch=20 out too,=20 http://www.users.on.net/~davroz/vk6di/argocaptures/argocaptures.html. He=20 receives in a low noise location... Not sure who of them is (still) member of this reflector so i put them=20 in CC. Due to Markus' work i see now that it actually may be possible to=20 receive a full call, if the path is open and QSB is low. In Dimitris'=20 DCF plot there is a peak of DCF to the time of my sunset and a stronger=20 one to the time of his sunrise. Inbetween this is the time when i will=20 be QRV. So i will start arround 17:30 UTC up to 20:30 UTC. Exciting times again on LF :-) 73, Stefan/DK7FC PS: I want to note that this 16464 km distant signal was received in an=20 urban location with a "micro probe" active E field antenna designed by=20 PA0RDT, not a large inv-L! ;-) Am 15.03.2012 10:07, schrieb Markus Vester: > Wow! I'm red-hot with envy ;-) > Attached is another grabber screenshot comparison. The width from=20 > DK7FC was halved, and the timescale of VK1SV shifted by 28 minutes. In=20 > addition to the perfect "7", we also find earlier weak dashes on the=20 > low DFCW frequency, between 18:05 and 18:20. This matches what seems=20 > to be have been a transmit keying error, with the callsign ending=20 > early in an "F" rather than a "C". > Congratulations to both Stefan and Dimitris on this fantastic result! > Best 73, > Markus (DF6NM) > > -----Urspr=C3=BCngliche Mitteilung----- > Von: Stefan Sch=C3=A4fer > An: rsgb_lf_group > Cc: Gamal Wahid Soegiono > Verschickt: Mi, 14 Mrz 2012 11:42 pm > Betreff: LF: DK7FC in VK? > > LF, > > Not yet a clear proof but probably i left a first trace in VK on 136.17= 2 > kHz in my evening transmission a few hours ago. > > The VK1SV grabber (http://people.physics.anu.edu.au/~dxt103/grabber/ <= http://people.physics.anu.edu.au/%7Edxt103/grabber/>) > showed this spectrogram at about 20:10 UTC: > http://dl.dropbox.com/u/19882028/LF/is%20that%20a%207.jpg > > It looks pretty equal to a 7 i find. > > Note the time delay of the time stamp in the spectrogram and in the tex= t > box in the left top corner. The correct time is that of the text box. > (We don't know where this delay may come from). The delay is exactly 30 > minutes. > So that 7 must have been on air at about 19:15 UTC. This exactly matche= s > with my own grabber capture which can be seen at > http://dl.dropbox.com/u/19882028/LF/EU60.jpg > > Also the frequency matches as well as the DFCWelement length and the > DFCW shift of my DFCW-180transmission. As a comparison i generated a 7 > in a spectrogram with equalsetting as used by Dimitris/VK1SV.Then i > cut that 7 and inserted it intothe VK grabber capture, see: > http://dl.dropbox.com/u/19882028/LF/7%20comparison.png > > Of course we will go on trying in the next time and hope to get a even > better proof. In that mode there is little room, i.e. time toreceive a > complete call. The time is very limited. But maybe wewill see a F > tomorrow :-) > I'm very optimistic you know. > > That is a path of 16464 km :-) > http://no.nonsense.ee/qthmap/?qth=3DJN49IK00WD&from=3DQF44MT > > 73, Stefan/DK7FC > > PS: Will be quiet tonite due to VLF receive tests. > > Am 14.03.2012 21:04, schrieb Stefan Sch=C3=A4fer: > > LF, > > > > I'm somewhat confused. Can somone look at this link and tell me what > > he sees:http://people.physics.anu.edu.au/~dxt103/grabber/ > > > > 73, Stefan/DK7FC > --------------000605090801050203010700 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by relay.uni-heidelberg.de id q2FE1HIf002505 Thank you Alan, Markus, Henny, Jean-Pierre, Jay,

It took a while until i belived that this is/was possible. Thank you for the confirmations. I was sceptic if the LF world would call this a valid detection. Now i hope to get better results and a even better proof today.

David/VK2DDI who runs the well known Berry Mountain Grabber will watch out too, http://www.users.on.net/~davroz/v= k6di/argocaptures/argocaptures.html. He receives in a low noise location...
Not sure who of them is (still) member of this reflector so i put them in CC.

Due to Markus' work i see now that it actually may be possible to receive a full call, if the path is open and QSB is low. In Dimitris' DCF plot there is a peak of DCF to the time of my sunset and a stronger one to the time of his sunrise. Inbetween this is the time when i will be QRV. So i will start arround 17:30 UTC up to 20:30 UTC.

Exciting times again on LF :-)

73, Stefan/DK7FC

PS: I want to note that this 16464 km distant signal was received in an urban location with a "micro probe" active E field antenna designed by PA0RDT, not a large inv-L! ;-)


Am 15.03.2012 10:07, schrieb Markus Vester:
Wow! I'm red-hot with envy ;-)
=C2=A0
Attached is another grabber screenshot comparison.=C2=A0The=C2=A0width=C2=A0from DK7FC was halved, and=C2=A0the = timescale of VK1SV=C2=A0shifted by 28 minutes. In addition to the perfect "7", we also find=C2=A0earlier weak=C2=A0dashes on the low DFCW frequency,=C2=A0betwee= n 18:05 and 18:20.=C2=A0This=C2=A0matches what seems to be have been a transmit keyin= g error,=C2=A0with the callsign ending early in an "F" rather than a "C".=C2= =A0=C2=A0
=C2=A0
Congratulations to both Stefan and Dimitris on this fantastic result!
=C2=A0
Best 73,
=C2=A0
Markus (DF6NM)

-= ----Urspr=C3=BCngliche Mitteilung-----
Von: Stefan Sch=C3=A4fer <Stefan.Schaefer@iup.uni-heid= elberg.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Cc: Gamal Wahid Soegiono <soegiono@web.de>
Verschickt: Mi, 14 Mrz 2012 11:42 pm
Betreff: LF: DK7FC in VK?

LF,

Not yet a clear proof but probably i left a first trace in VK on 136.172=20
kHz in my evening transmission a few hours ago.

The VK1SV grabber ( http://people.physics.anu.edu.au/~dxt103/grabber/)=
=20
showed this spectrogram at about 20:10 UTC:=20
http://dl.dropbox.com/u/19882028/LF/is%20that%20a%207.=
jpg

It looks pretty equal to a 7 i find.

Note the time delay of the time stamp in the spectrogram and in the text=20
box in the left top corner. The correct time is that of the text box.=20
(We don't know where this delay may come from). The delay is exactly 30=20
minutes.
So that 7 must have been on air at about 19:15 UTC. This exactly matches=20
with my own grabber capture which can be seen at=20
=
http://dl.dropbox.com/u/19882028/LF/EU60.jpg

Also the frequency matches as well as the DFCW element length and the=20
DFCW shift of my DFCW-180 transmission. As a comp=
arison i generated a 7=20
in a spectrogram with equal setting as used by Di=
mitris/VK1SV. Then i=20
cut that 7 and inserted it into the VK grabber ca=
pture, see:=20
http://dl.dropbox.com/u/19882028/LF/7%20comparison.png

Of course we will go on trying in the next time and hope to get a even=20
better proof. In that mode there is little room, i.e. time to receive a=20
complete call. The time is very limited. But maybe we wi=
ll see a F=20
tomorrow :-)
I'm very optimistic you know.

That is a path of 16464 km :-)=20
http://no.nonsense.ee/qthmap/?qth=3DJN49IK00WD&fro=
m=3DQF44MT

73, Stefan/DK7FC

PS: Will be quiet tonite due to VLF receive tests.

Am 14.03.2012 21:04, schrieb Stefan Sch=C3=A4fer:
> LF,
>
> I'm somewhat confused. Can somone look at this link and tell me what=
=20
> he sees: http://people.physics.anu.edu.au/~dxt103/grabber/
>
> 73, Stefan/DK7FC
--------------000605090801050203010700--