Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df03.r1000.mx.aol.com (Internet Inbound) with ESMTP id CC665380000BC; Tue, 31 Jan 2012 15:47:07 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RsJzk-0002n4-UM for rs_out_1@blacksheep.org; Tue, 31 Jan 2012 20:08:00 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RsJzk-0002mv-IU for rsgb_lf_group@blacksheep.org; Tue, 31 Jan 2012 20:08:00 +0000 Received: from smtpout1.wanadoo.co.uk ([80.12.242.29] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RsJzi-0002eN-7L for rsgb_lf_group@blacksheep.org; Tue, 31 Jan 2012 20:08:00 +0000 Received: from AGB ([2.26.21.107]) by mwinf5d08 with ME id UL7s1i0032JdLH603L7sHr; Tue, 31 Jan 2012 21:07:52 +0100 Message-ID: From: "Graham" To: References: <006201cce044$06c16f80$0401a8c0@xphd97xgq27nyf> <3A9A60CAE4EB4355A5B0A30CDA0F450A@JimPC> In-Reply-To: <3A9A60CAE4EB4355A5B0A30CDA0F450A@JimPC> Date: Tue, 31 Jan 2012 20:07:51 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: avast! (VPS 120131-0, 31/01/2012), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: Re: Opera v qrs evaluation Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=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-SCOLL-SCORE: 0:2:448922816:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40d74f28534b7295 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none JIm, I am seeing -32 db decodes, which must be round the lower limit , the s/n level is referenced to the path-sim software , the readings may be less than other beacon modes , for the same actual level. Tnx -G.. -------------------------------------------------- From: "James Moritz" Sent: Tuesday, January 31, 2012 6:35 PM To: Subject: LF: Re: Opera v qrs evaluation > Dear Eddie, LF Group, > > In an attempt to actually make a comparison, I have set my RX to the > 500kHz WSPR frequency, with Spec Lab going also. Since it has been > running, G3ZJO's QRSS3 has been about 10 - 15dB SNR in 0.3Hz FFT > resolution, so say about 6dB above the level needed for "good copy". Opera > has so far reported SNR between -23 and -27dB - I don't know how this > relates to the detection threshold for the Op4 mode. I'll leave it going > for a while... > > Cheers, Jim Moritz > 73 de M0BMU >