Return-Path: Received: from mtain-mb03.r1000.mx.aol.com (mtain-mb03.r1000.mx.aol.com [172.29.96.23]) by air-mb08.mail.aol.com (v126.13) with ESMTP id MAILINMB084-a8064b60a9a4102; Wed, 27 Jan 2010 16:01:24 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mb03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 68577380000E5; Wed, 27 Jan 2010 16:01:22 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NaEzr-0004mg-4w for rs_out_1@blacksheep.org; Wed, 27 Jan 2010 21:00:19 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NaEzq-0004mX-KO for rsgb_lf_group@blacksheep.org; Wed, 27 Jan 2010 21:00:18 +0000 Received: from smtp03.online.nl ([194.134.41.33]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NaEzo-0006VZ-23 for rsgb_lf_group@blacksheep.org; Wed, 27 Jan 2010 21:00:18 +0000 Received: from smtp03.online.nl (localhost [127.0.0.1]) by smtp03.online.nl (Postfix) with ESMTP id 069956815D for ; Wed, 27 Jan 2010 22:00:15 +0100 (CET) Received: from pa3fnytrqxpddu (s5593e077.adsl.wanadoo.nl [85.147.224.119]) by smtp03.online.nl (Postfix) with SMTP for ; Wed, 27 Jan 2010 22:00:14 +0100 (CET) From: To: Date: Wed, 27 Jan 2010 22:00:14 +0100 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 In-Reply-To: Importance: Normal X-Online-Scanned: by Cloudmark authority (on smtp03.online.nl) X-Spam-Score: 0.7 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,HTML_TAG_EXIST_TBODY=0.126,NO_REAL_NAME=0.55 Subject: LF: RE: RE: WSPR Reports Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01CA9F9C.1AE2DBB0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.5 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_50_60, HTML_FONTCOLOR_BLUE,HTML_MESSAGE,HTML_TAG_EXISTS_TBODY,NO_REAL_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: 3039ac1d60174b60a9a21e6e X-AOL-IP: 193.82.116.20 ------=_NextPart_000_0019_01CA9F9C.1AE2DBB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Hello Rik,Andy, normally I use a 250 Hz USB filter for wspr,I get decodes down to -32 dB although rare... 73 Victor -----Oorspronkelijk bericht----- Van: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]Namens Rik Strobbe Verzonden: woensdag 27 januari 2010 21:33 Aan: rsgb_lf_group@blacksheep.org Onderwerp: LF: RE: WSPR Reports Andy, maybe the "magic" lies in a narrow filter (either IF or audio). If I switch from a 2.5kHz (SSB) filter to a 270 Hz filter I also get a significant increase in SNR values reported by WSPR. Unfortunaely it hardly affects the decoding level (minimal SNR needed to get a positive decode), that rises by almost the same amount. 73, Rik ON7YD - OR7T ---------------------------------------------------------------------------- -- Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Andy Talbot [andy.g4jnt@googlemail.com] Verzonden: woensdag 27 januari 2010 21:26 Aan: rsgb_lf_group@blacksheep.org Onderwerp: LF: WSPR Reports Has F6CNI managed some sort of magic noise reduction system, or is it a just a case of being in a very quiet location... These are pretty impressive S/N values 2010-01-27 20:14 G4JNT 0.503875 +13 0 IO90iv +23 0.200 F6CNI JN19qb 391 243 2010-01-27 20:08 G4JNT 0.503875 +10 0 IO90iv +23 0.200 F6CNI JN19qb 391 243 2010-01-27 20:02 PA0A 0.503900 +15 0 JO33de +37 5.012 F6CNI JN19qb 502 312 2010-01-27 20:00 G4JNT 0.503875 +14 0 IO90iv +23 0.200 F6CNI JN19qb 391 243 2010-01-27 19:54 G7NKS 0.503920 -5 0 IO92ub +20 0.100 F6CNI JN19qb 422 262 2010-01-27 19:54 G4JNT 0.503875 +14 0 IO90iv +23 0.200 F6CNI JN19qb 391 243 2010-01-27 19:44 G4JNT 0.503875 +10 0 IO90iv +23 0.200 F6CNI JN19qb 391 243 2010-01-27 19:40 PA0A 0.503900 +15 0 JO33de +37 5.012 F6CNI JN19qb 502 312 Andy www.g4jnt.com ------=_NextPart_000_0019_01CA9F9C.1AE2DBB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello=20 Rik,Andy,
 
normally I use a 250 Hz USB filter for wspr,I get decode= s down to -32 dB=20 although rare...
 
73
 
Victor
-----Oorspronkelijk bericht-----
Van:= =20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]Namens Rik=20 Strobbe
Verzonden: woensdag 27 januari 2010 21:33
Aa= n:=20 rsgb_lf_group@blacksheep.org
Onderwerp: LF: RE: WSPR=20 Reports

Andy,
 
maybe the "magic"= lies in a narrow=20 filter (either IF or audio).
If I switch from a 2.5kH= z (SSB) filter=20 to a 270 Hz filter I also get a significant increase in SNR val= ues=20 reported by WSPR.
Unfortunaely it hardly= affects the=20 decoding level (minimal SNR needed to get a positive decode), that= rises by=20 almost the same amount.
 
73, Rik  ON7YD - OR= 7T
Van: owner-rsgb_lf_group@blacksh= eep.org=20 [owner-rsgb_lf_group@blacksheep.org] namens Andy Talbot=20 [andy.g4jnt@googlemail.com]
Verzonden: woensdag 27 januari= 2010=20 21:26
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: LF:=20 WSPR Reports

Has F6CNI managed some sort of magic noise reduction system, or= is it a=20 just a case of being in a very quiet location...
These are pretty impressive S/N values
 
 
 2010-01-27 20:14   G4JNT   0.503875   +13   0   IO90iv   +23   0.200   F6CNI   JN19qb   391   243 
 2010-01-27 20:08   G4JNT   0.503875   +10   0   IO90iv   +23   0.200   F6CNI   JN19qb   391   243 
 2010-01-27 20:02   PA0A   0.503900   +15   0   JO33de   +37   5.012   F6CNI   JN19qb   502   312 
 2010-01-27 20:00   G4JNT   0.503875   +14   0   IO90iv   +23   0.200   F6CNI   JN19qb   391   243 
 2010-01-27 19:54   G7NKS   0.503920   -5   0   IO92ub   +20   0.100   F6CNI   JN19qb   422   262 
 2010-01-27 19:54   G4JNT   0.503875   +14   0   IO90iv   +23   0.200   F6CNI   JN19qb   391   243 
 2010-01-27 19:44   G4JNT   0.503875   +10   0   IO90iv   +23   0.200   F6CNI   JN19qb   391   243 
 2010-01-27 19:40   PA0A   0.503900   +15   0   JO33de   +37   5.012   F6CNI   JN19qb   502   312 
 
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