Return-Path: Received: from mtain-md10.r1000.mx.aol.com (mtain-md10.r1000.mx.aol.com [172.29.96.94]) by air-mb08.mail.aol.com (v126.13) with ESMTP id MAILINMB082-a7d84b58302c91; Thu, 21 Jan 2010 05:45:00 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-md10.r1000.mx.aol.com (Internet Inbound) with ESMTP id 6E1EF38000049; Thu, 21 Jan 2010 05:44:58 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NXuVI-0004SO-MQ for rs_out_1@blacksheep.org; Thu, 21 Jan 2010 10:43:08 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NXuVI-0004SF-41 for rsgb_lf_group@blacksheep.org; Thu, 21 Jan 2010 10:43:08 +0000 Received: from cavuit01.kulnet.kuleuven.be ([134.58.240.43]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NXuVF-0004Uc-9n for rsgb_lf_group@blacksheep.org; Thu, 21 Jan 2010 10:43:08 +0000 Received: from smtps01.kuleuven.be (smtpshost01.kulnet.kuleuven.be [134.58.240.74]) by cavuit01.kulnet.kuleuven.be (Postfix) with ESMTP id F12B57B805A for ; Thu, 21 Jan 2010 11:42:39 +0100 (CET) Received: from PC_van_Rik.fys.kuleuven.be (dhcp-10-33-85-106.fys.kuleuven.be [10.33.85.106]) by smtps01.kuleuven.be (Postfix) with ESMTP id E3CDE31E702 for ; Thu, 21 Jan 2010 11:42:39 +0100 (CET) X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Thu, 21 Jan 2010 11:42:39 +0100 To: "rsgb_lf_group@blacksheep.org" X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe In-Reply-To: <000b01ca9a1d$f538a620$0202a8c0@laptopcore2> References: <000b01ca9a1d$f538a620$0202a8c0@laptopcore2> Mime-Version: 1.0 Message-Id: <20100121104239.E3CDE31E702@smtps01.kuleuven.be> X-KULeuven-Information: Katholieke Universiteit Leuven X-KULeuven-Scanned: Found to be clean X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,HTML_FONT_BIG=0.256,HTML_MESSAGE=0.001 Subject: LF: about guns, water pistols and dripping tabs Content-Type: multipart/alternative; boundary="=====================_11209561==.ALT" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_FONTCOLOR_BLUE, HTML_FONT_BIG,HTML_MESSAGE,TO_ADDRESS_EQ_REAL 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: 3039ac1d605e4b58302a56ae X-AOL-IP: 193.82.116.20 --=====================_11209561==.ALT Content-Type: text/plain; charset="iso-8859-1"; format=flowed Content-Transfer-Encoding: quoted-printable Eddie, Andy, Roger, all, the nice thing about WSPR and the www.wspr.org=20 web site is that a lot af data is available. I copied the my spots (past 7 days) of G4JNT,=20 G3XBM and G3ZJO from the web site and threw them=20 in the mill to check how often I copied at least=20 2 of the 3 calls in the same time slot: I took only the night time spots as I assume that=20 propagation then is 1 hop ionospheric and small=20 differences in distance are less important. * G3XBM - G3ZJO: 6 'hits', average difference =3D 8dB (in favor of Roger) 6 data sets is a bit low to to proper statistics,=20 but the difference of 8dB between Roger and Eddie=20 fits well into the claimed ERP's (1mW and 200uW =3D 7dB) * G4JNT - G3XBM : 60 'hits', average difference =3D 15dB (in favor of Andy= ) 15dB difference would mean that if Roger's 1mW=20 ERP is correct that Andy would run "only" 30mW ERP ? But the standard dev. is 6dB, so it could be (a=20 more realistic) 120mW as well ... * G4JNT - G3ZJO: 6 'hits', average difference =3D 23dB (in favor of Andy) Nice, this is the sum of the previous values (as iit should be ;-) ) All values are give or take some dB, but they seem to make sense. 73, Rik ON7YD - OR7T At 23:14 20/01/2010, you wrote: >Yeh ! Congratulations Roger. > >Lubos you have the Water Pistol, can you now RX=20 >a tiny Dripping Tap, my QRPp 200uW ERP is on.. > >73 > >Eddie G3ZJO > >-----Original Message----- >From: owner-rsgb_lf_group@blacksheep.org=20 >[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Andy Talbot >Sent: 20 January 2010 22:01 >To: rsgb_lf_group@blacksheep.org >Subject: Re: LF: G3XBM > >Congratulations, "water pistol" >1200km - a very comfortable margin too. > > >Andy >www.g4jnt.com > >2010/1/20 Lubos OK2BVG <bvgbob@hotmail.com> >Hello Roger, LF! >This moment is just now: > >2136 -7 0.2 0.503874 0 G4JNT IO90 23 > >2142 -29 -0.5 0.503910 1 G3XBM JO02 0 > >Congratulation! > >Lubos, OK2BVG, JN88KS > >---------- >Windows 7: Kter=FD po=E8=EDta=E8 je pro v=E1s ten prav=FD?=20 >Dal=B9=ED informace. > > >No virus found in this incoming message. >Checked by AVG - www.avg.com >Version: 9.0.730 / Virus Database:=20 >270.14.151/2633 - Release Date: 01/19/10 17:49:00 --=====================_11209561==.ALT Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Eddie, Andy, Roger, all,

the nice thing about WSPR and the www.wspr.org web= site is that a lot af data is available.
I copied the my spots (past 7 days) of G4JNT, G3XBM and G3ZJO from the web site and threw them in the mill to check how often I copied  at least 2 of the 3 calls in the same time slot:
I took only the night time spots as I assume that propagation then is 1 hop ionospheric and small differences in distance are less important.

* G3XBM - G3ZJO: 6 'hits', average difference =3D 8dB (in favor of Roger)
6 data sets is a bit low to to proper statistics, but the difference of 8dB between Roger and Eddie fits well into the claimed ERP's (1mW and 200uW =3D 7dB)

* G4JNT - G3XBM : 60 'hits', average difference =3D 15dB (in favor of Andy)
15dB difference would mean that if Roger's 1mW ERP is correct that Andy would run "only" 30mW ERP ?
But the standard dev. is 6dB, so it could be (a more realistic) 120mW as well ...

* G4JNT - G3ZJO: 6 'hits', average difference =3D 23dB (in favor of Andy)
Nice, this is the sum of the previous values (as iit should be ;-) )

All values are give or take some dB, but they seem to make sense.

73, Rik  ON7YD - OR7T

At 23:14 20/01/2010, you wrote:
Yeh ! Congratulations Roger.
 
Lubos you have the Water Pistol, can you now RX a tiny Dripping Tap, my QRPp 200uW ERP is on..
 
73
 
 Eddie G3ZJO
 
-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org [ mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Andy Talbot
Sent: 20 January 2010 22:01
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: G3XBM
 
Congratulations,  "water pistol"
1200km - a very comfortable margin too.
 

Andy
www.g4jnt.com

2010/1/20 Lubos OK2BVG <bvgbob@hotmail.com>
Hello Roger, LF!
This moment is just now:

2136  -7  0.2   0.503874  0 G4JNT IO90 23

2142 -29 -0.5   0.503910  1 G3XBM JO0= 2 0

Congratulation!

Lubos, OK2BVG, JN88KS
Windows 7: Kter=FD po=E8=EDta=E8 je= pro v=E1s ten prav=FD? Dal=B9=ED informace.
 

No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.730 / Virus Database: 270.14.151/2633 - Release Date: 01/19/10 17:49:00
--=====================_11209561==.ALT--