Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mp06.r1000.mx.aol.com (Internet Inbound) with ESMTP id F2B61380000AA; Thu, 2 Feb 2012 16:17:01 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rt3ug-0002Fn-Ak for rs_out_1@blacksheep.org; Thu, 02 Feb 2012 21:09:50 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rt3uf-0002Fe-KW for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2012 21:09:49 +0000 Received: from rhcavuit02.kulnet.kuleuven.be ([134.58.240.130] helo=cavuit02.kulnet.kuleuven.be) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Rt3ud-0007kM-2N for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2012 21:09:49 +0000 X-KULeuven-Envelope-From: rik.strobbe@fys.kuleuven.be X-KULeuven-Scanned: Found to be clean X-KULeuven-ID: 18D67128083.A502E X-KULeuven-Information: Katholieke Universiteit Leuven Received: from smtps02.kuleuven.be (smtpshost02.kulnet.kuleuven.be [134.58.240.75]) by cavuit02.kulnet.kuleuven.be (Postfix) with ESMTP id 18D67128083 for ; Thu, 2 Feb 2012 22:09:40 +0100 (CET) Received: from ICTS-S-HUB-N4.luna.kuleuven.be (icts-s-hub-n4.luna.kuleuven.be [10.112.9.14]) by smtps02.kuleuven.be (Postfix) with ESMTP id E5EA4F3862 for ; Thu, 2 Feb 2012 22:09:39 +0100 (CET) Received: from ICTS-S-EXC2-CA.luna.kuleuven.be ([10.112.11.13]) by ICTS-S-HUB-N4.luna.kuleuven.be ([10.112.9.14]) with mapi; Thu, 2 Feb 2012 22:09:39 +0100 X-Kuleuven: This mail passed the K.U.Leuven mailcluster From: Rik Strobbe To: "rsgb_lf_group@blacksheep.org" Date: Thu, 2 Feb 2012 22:06:21 +0100 Thread-Topic: Opera weak signal Rx Thread-Index: Aczh7c+3cJA23s7LRI2fsX2XLRDgVAAALO9G Message-ID: References: <372EEAF266214ECDB1E430B737F510BA@GaryPC> In-Reply-To: <372EEAF266214ECDB1E430B737F510BA@GaryPC> Accept-Language: nl-NL, nl-BE Content-Language: nl-BE X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: nl-NL, nl-BE MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: RE: Opera weak signal Rx Content-Type: multipart/alternative; boundary="_000_BF4A524700075746A6467658DFC7102CB0B68CCD78ICTSSEXC2CAlu_" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_50_60,HTML_FONTCOLOR_BLUE, 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-SCOLL-SCORE: 0:2:323685152:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1dc14a4f2afd4d232d X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --_000_BF4A524700075746A6467658DFC7102CB0B68CCD78ICTSSEXC2CAlu_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Gary, in the little test I did earlier today (sending only the last 96 bits) I no= ticed that Opera reported -38dB while the real SNR was about +15dB. I assume that the SNR value gets wrong as a part of the bits get lost (eg. = QSB). In addition Opera gives a 4dB lower value than WSPR. The combination may explain -41dB. 73, Rik ON7YD ________________________________ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org= ] namens Gary G4WGT [g4wgt@tiscali.co.uk] Verzonden: donderdag 2 februari 2012 21:59 Aan: O_P_E_R_A_@yahoogroups.com; LF Group Onderwerp: LF: Opera weak signal Rx Hi All, Amazing Opera decode of weak signal at -41dB :- 20:38 136 UA4WPF de G4WGT Op32 3462 km -41 dB in IO83qo, nr Preston. 73, Gary - G4WGT. --_000_BF4A524700075746A6467658DFC7102CB0B68CCD78ICTSSEXC2CAlu_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Gary,
 
in the little test I = ;did earlier today (sending only= the last 96 bits) I noticed that Opera = ;reported -38dB while the real S= NR was about +15dB.
I assume that= the SNR value gets wrong as a part of = the bits get lost (eg. QSB).
In addition Opera gi= ves a 4dB lower value than<= a> WSPR.
The combination may<= a> explain -41dB.
 
73, Rik  ON7YD
=  
Van: owner-rsgb_l= f_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Gary G4W= GT [g4wgt@tiscali.co.uk]
Verzonden: donderdag 2 februari 2012 21:59
Aan: O_P_E_R_A_@yahoogroups.com; LF Group
Onderwerp: LF: Opera weak signal Rx

Hi All,
 
Amazing Opera decode of weak signal at -41dB= :-
 
= 20:38 136 UA4WPF de G4WGT Op32 3462 km -41 dB in IO83qo, nr Preston.=
=  
= 73, Gary - G4WGT.<= /div>
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