Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mb01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 38E4E380000A9; Thu, 2 Feb 2012 13:17:00 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rt0lJ-0007Uf-Ph for rs_out_1@blacksheep.org; Thu, 02 Feb 2012 17:47:57 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rt0lJ-0007UW-D6 for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2012 17:47:57 +0000 Received: from mail-pw0-f43.google.com ([209.85.160.43]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Rt0lH-0005UE-0h for rsgb_lf_group@blacksheep.org; Thu, 02 Feb 2012 17:47:57 +0000 Received: by pbds6 with SMTP id s6so3048819pbd.16 for ; Thu, 02 Feb 2012 09:47:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=oAheQlsffCBbt/vTGQa1NGGE0aPjQqT4kli1wvC4d9Y=; b=Cd+t7ewnu8bSBIlX4hm9u2BUaKSEaX2cby17vKGAIcHNG+EIc/ARwxJUigGrpWAqZt uE2uW0UG4tQnDWzvX/h/e2MM/G9FMHM8rxc6xXuwnSFP1uYhmA93d57OLo7+ffu0qBB1 vGfzGEIlXLJ/zvZTJF479SYRKRFlmKCHBKlHU= MIME-Version: 1.0 Received: by 10.68.225.164 with SMTP id rl4mr9259011pbc.117.1328204867796; Thu, 02 Feb 2012 09:47:47 -0800 (PST) Received: by 10.142.81.12 with HTTP; Thu, 2 Feb 2012 09:47:47 -0800 (PST) In-Reply-To: References: Date: Thu, 2 Feb 2012 17:47:47 +0000 Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: QRSS3 "challenge" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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: 0:2:449884896:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d002.1 ; domain : gmail.com DKIM : pass x-aol-sid: 3039ac1d60154f2ad31c6907 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none RIk - Your challenge assumes we know the meaning of the short and long symbols ;-= ) Fortunately I do have a cross-reference to hand Andy G8IMR On 2 February 2012 17:17, Rik Strobbe wrote: > Dear=A0all, > > > > as=A0mentioned=A0some=A0days=A0ago I=A0generated a=A0whole series of Oper= a,=A0WSPR > and=A0QRSS3 audio=A0with a=A0known SNR. > > For Opera and=A0WSPR=A0it was easy to=A0determine the=A0lowest=A0SNR=A0fo= r a proper > decode.=A0But=A0for=A0QRSS3=A0it is=A0much more=A0difficult as=A0it=A0dep= ends=A0on the > operators "sharp eye".=A0It must=A0be=A0somewhere in the range of -24 to = -28dB=A0SNR > (@=A02.5kHz BW). > > Today=A0I=A0did put all the=A0QRSS3 screenshots in=A0this range in a > website,=A0where=A0you=A0can=A0fill in=A0what=A0you=A0see (decode)=A0for= =A0each screenshot. > > I=A0would=A0like to invite all of=A0you to=A0give=A0it a=A0try and=A0send= me the=A0results > (the more=A0entries the=A0better the statistics). > > After=A0some time=A0(Feb 10th)=A0will put all=A0results=A0into=A0some=A0n= ice tables > and=A0graphs and=A0make=A0them available. > > Of=A0course=A0no=A0personal (individual)=A0results=A0will=A0be published.= =A0But=A0based=A0on > the=A0results=A0every participant (who=A0keeps=A0his results)=A0can=A0see= =A0where=A0he ends. > > > > The "QRSS3 Challenge"=A0can=A0be=A0found at http://on7yd.strobbe.eu/QRSS/ > > > > 73, Rik=A0=A0ON7YD - OR7T