Return-Path: Received: from mtain-da06.r1000.mx.aol.com (mtain-da06.r1000.mx.aol.com [172.29.64.78]) by air-ma06.mail.aol.com (v129.4) with ESMTP id MAILINMA061-b5284cd556f31a6; Sat, 06 Nov 2010 09:24:03 -0400 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da06.r1000.mx.aol.com (Internet Inbound) with ESMTP id 07DFC380001A9; Sat, 6 Nov 2010 09:24:00 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PEiik-0001DD-3C for rs_out_1@blacksheep.org; Sat, 06 Nov 2010 13:22:14 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PEiij-0001D4-Bz for rsgb_lf_group@blacksheep.org; Sat, 06 Nov 2010 13:22:13 +0000 Received: from smtp7.freeserve.com ([80.12.242.2] helo=smtp6.freeserve.com) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PEiih-0000yM-H3 for rsgb_lf_group@blacksheep.org; Sat, 06 Nov 2010 13:22:13 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3j01.me.freeserve.com (SMTP Server) with ESMTP id 02EFC300009B for ; Sat, 6 Nov 2010 14:22:06 +0100 (CET) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3j01.me.freeserve.com (SMTP Server) with ESMTP id EA202300009D for ; Sat, 6 Nov 2010 14:22:05 +0100 (CET) Received: from AGB (unknown [91.109.18.101]) by mwinf3j01.me.freeserve.com (SMTP Server) with SMTP id 904B1300009B for ; Sat, 6 Nov 2010 14:22:05 +0100 (CET) X-ME-UUID: 20101106132205591.904B1300009B@mwinf3j01.me.freeserve.com Message-ID: <757DB8D43CC8484EBD4F32B50517A7A3@AGB> From: "Graham" To: References: In-Reply-To: Date: Sat, 6 Nov 2010 13:22:04 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 X-Antivirus: avast! (VPS 101106-0, 06/11/2010), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.3 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,MAILTO_TO_SPAM_ADDR=0.276 Subject: Re: LF: WD2XSH/17 on WSPR Content-Type: multipart/alternative; boundary="----=_NextPart_000_006B_01CB7DB5.9AC22B40" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.7 required=5.0 tests=HTML_40_50,HTML_FONTCOLOR_BLUE, HTML_MESSAGE,MAILTO_TO_SPAM_ADDR,MISSING_OUTLOOK_NAME 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: 3039ac1d404e4cd556f05a02 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_006B_01CB7DB5.9AC22B40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dave, I think the sharp cut-off is the only elegant part of it ? , using= spec-lab , I can see a drop of 10 to 15 dB over 502 KHz .. suppo= se its a good place to try data modes out .. interestingly , wspr is= not producing any false decodes and the WD signal decoded twice= , which I think is actually times 4 decodes , round 2400 z , but= may be the s/n distorted by the noise floor increase ? my 100 watt= s crossed once , but gave a better s/n=20 There may be a possibility , that you are inside the skip range an= d out of the ground 75/100 mile range ..? I see a couple of S points on the meter as I tune over the noise= ..marvellous .. and the pulse modulated Christmas lights are yet= to come ...... hum-bug 73-G. From: Dave G3WCB.=20 Sent: Saturday, November 06, 2010 12:43 PM To: rsgb_lf_group@blacksheep.org=20 Subject: RE: LF: WD2XSH/17 on WSPR Hi, Graham. It's probably contributing to the overall high level of crud at this= QTH, but I'm not aware of exactly how much it is adding.=20 I'll do some tests over the week-end and try to measure the contributi= on. From what I've seen on the various grabbers, it seems to have a fa= irly well-defined H F cut-off, so it should be easy to identify where= the wideband datalink noise ends and the usual hash continues. Cheers Dave -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group= @blacksheep.org]On Behalf Of Graham Sent: 06 November 2010 11:07 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: WD2XSH/17 on WSPR Dave, Do you see the wide band noise at + 10 to +15 dB over the back= ground noise ?=20 G..=20 From: Dave G3WCB.=20 Sent: Saturday, November 06, 2010 8:23 AM To: rsgb_lf_group@blacksheep.org ; GQRP@yahoogroups.com=20 Subject: LF: WD2XSH/17 on WSPR I snagged WD2XSH/17 last night on WSPR. This is pretty good going fo= r this QTH, as I have a very high local noise level on 500 kHz. 2010-11-06 04:06 WD2XSH/17 0.501091 -27 0 FN42pb +30 1.000= G3WCB IO91rm 5233 3252 =20 73, Dave G3WCB IO91RM nr Windsor, S.E.England ------=_NextPart_000_006B_01CB7DB5.9AC22B40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dave,
 
I think the  sharp cut-off =   is the=20 only elegant  part of it ? , using  spec-lab , I can = see a =20 drop  of 10  to 15 dB over 502 KHz .. suppose its a good&nbs= p; place=20 to  try data modes out .. interestingly , wspr is not  produ= cing=20 any  false  decodes and the  WD signal  decoded&nb= sp; twice=20 , which I think is  actually  times 4 decodes , round&n= bsp; 2400=20 z , but may be the  s/n  distorted by the  noise floor= increase ?=20 my 100 watts  crossed once , but  gave a  better s/n=20
 
There  may be a possibility , th= at you=20 are  inside the  skip  range and out of the  groun= d =20 75/100  mile  range ..?
 
I see  a  couple of S point= s on the =20 meter as I tune over the  noise ..marvellous .. and the &nbs= p;pulse=20 modulated  Christmas  lights are  yet to  come &nb= sp; ......=20 hum-bug
 
73-G.

Sent: Saturday, November 06, 2010 12:43 PM
Subject: RE: LF: WD2XSH/17 on WSPR

Hi,=20 Graham.
 
It's=20 probably contributing to the overall high level of crud at this QTH,= but I'm not=20 aware of exactly how much it is adding.
 
I'll=20 do some tests over the week-end and try to measure the contribution.= From what=20 I've seen on the various grabbers, it seems to have a fairly well-defi= ned H F=20 cut-off, so it should be easy to identify where the wideband datalink= noise ends=20 and the usual hash continues.
 
Cheers
 
Dave
-----Original Message-----
From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of=20 Graham
Sent: 06 November 2010 11:07
To:=20 rsgb_lf_group@blacksheep.org
Subject: Re: LF: WD2XSH/17 on= =20 WSPR

Dave,
 
Do you  see  the wide ban= d noise=20  at  + 10 to  +15 dB over the  background = noise ?=20
 
G..
 

Sent: Saturday, November 06, 2010 8:23 AM
Subject: LF: WD2XSH/17 on WSPR

I=20 snagged WD2XSH/17 last night on WSPR. This is pretty good going for= this QTH,=20 as I have a very high local noise level on 500 kHz.
2010-11-06 04:06  WD2XSH/17  0.= 501091  -27  0  FN42pb&n= bsp; +30  1.000  G3WCB&= nbsp; IO91rm  5233  3252 = ; 
 
73,=20 Dave G3WCB IO91RM nr Windsor,=20 S.E.England




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