Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 97D9D380000D5 for ; Wed, 8 Feb 2012 15:16:44 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RvD8u-0002y1-5h for rs_out_1@blacksheep.org; Wed, 08 Feb 2012 19:25:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RvD8t-0002xr-LP for rsgb_lf_group@blacksheep.org; Wed, 08 Feb 2012 19:25:23 +0000 Received: from smtpout2.wanadoo.co.uk ([80.12.242.42] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RvD8r-0000dE-00 for rsgb_lf_group@blacksheep.org; Wed, 08 Feb 2012 19:25:23 +0000 Received: from AGB ([2.26.45.230]) by mwinf5d25 with ME id XXRE1i00R4xyJkJ03XRFPH; Wed, 08 Feb 2012 20:25:15 +0100 Message-ID: <23F8070D122C49B2A25DEE326E1F4BF7@AGB> From: "Graham" To: References: <4F32C7D8.80303@talktalk.net> In-Reply-To: <4F32C7D8.80303@talktalk.net> Date: Wed, 8 Feb 2012 19:25:14 -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 120208-0, 08/02/2012), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: QRSS3 "challenge" results Content-Type: multipart/alternative; boundary="----=_NextPart_000_0089_01CCE697.620AD8F0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, 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: 0:2:471220320:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d60564f32d82b0aa3 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0089_01CCE697.620AD8F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Guess you found , noise is random after all ! =20 G.=20 From: qrss=20 Sent: Wednesday, February 08, 2012 7:07 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: QRSS3 "challenge" results Hello Rik / LF Those results tie in well with my tests on 500kHz. Having run WSPR = spaced with QRS3 for some years I was surprised how easy it was to read = QRS3 FANT0M tagged to OP4 compared with the OP4 performance. On the G3ZJO to G0KTN path, (my main tests) thanks Trevor, there is an = anomaly, OP1 and OP2 are no worse sometimes better than OP4 within a dB = or 2, OP8 and OP16 are worse. When OP1, OP2 or OP4 drop out on the path WSPR still decodes with 6dB to = spare. Comparing the failing OP16 performance G3ZJO to G0KTN with this one this = afternoon leaves some explaining to do. 13:54 500 G3ZJO de ON6EO Op16 -37 dB in JO11LE 73 Eddie G3ZJO On 08/02/2012 16:00, Rik Strobbe wrote:=20 Dear all, the results of the "QRSS3 challenge" can be found at = http://on7yd.strobbe.eu/QRSS/ Hit refresh if you still see the old challenge. Thanks to all who participated ! 73, Rik ON7YD - OR7T -------------------------------------------------------------------------= ----- Van: Rik Strobbe Verzonden: donderdag 2 februari 2012 18:17 Aan: rsgb_lf_group@blacksheep.org Onderwerp: QRSS3 "challenge" Dear all, as mentioned some days ago I generated a whole series of Opera, WSPR = and QRSS3 audio with a known SNR. For Opera and WSPR it was easy to determine the lowest SNR for a = proper decode. But for QRSS3 it is much more difficult as it depends on = the operators "sharp eye". It must be somewhere in the range of -24 to = -28dB SNR (@ 2.5kHz BW). Today I did put all the QRSS3 screenshots in this range in a website, = where you can fill in what you see (decode) for each screenshot. I would like to invite all of you to give it a try and send me the = results (the more entries the better the statistics). After some time (Feb 10th) will put all results into some nice tables = and graphs and make them available. Of course no personal (individual) results will be published. But = based on the results every participant (who keeps his results) can see = where he ends. The "QRSS3 Challenge" can be found at http://on7yd.strobbe.eu/QRSS/ 73, Rik ON7YD - OR7T ------=_NextPart_000_0089_01CCE697.620AD8F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Guess  you  found  , noise is  random = after =20 all  ! 
 
G.

From: qrss
Sent: Wednesday, February 08, 2012 7:07 PM
Subject: Re: LF: QRSS3 "challenge" results

Hello Rik / LF

Those results tie in well with my = tests on=20 500kHz. Having run WSPR spaced with QRS3  for some years I was = surprised=20 how easy it was to read QRS3 FANT0M tagged to OP4 compared with the OP4=20 performance.

On the G3ZJO to G0KTN path, (my main tests) thanks = Trevor,=20 there is an anomaly, OP1 and OP2 are no worse sometimes better than OP4 = within a=20 dB or 2, OP8 and OP16 are worse.

When OP1, OP2 or OP4 drop out on = the=20 path WSPR still decodes with 6dB to spare.

Comparing the failing = OP16=20 performance G3ZJO to G0KTN with this one this afternoon leaves some = explaining=20 to do.

13:54    500 G3ZJO de ON6EO Op16  = -37 dB in=20 JO11LE

73 Eddie G3ZJO

On 08/02/2012 16:00, Rik Strobbe = wrote:=20
Dear all,
 
the results of the "QRSS3=20 challenge" can be found at http://on7yd.strobbe.eu/QRSS/
Hit refresh if you still see = the old=20 challenge.
 
Thanks to=20 all who participated !
 
73, Rik  ON7YD - = OR7T
 
Van: Rik=20 Strobbe
Verzonden: donderdag 2 februari 2012 = 18:17
Aan: rsgb_lf_group@blacksheep.org=
Onderwerp:=20 QRSS3 "challenge"

Dear all,

 

as mentioned some days ago=20 I generated a whole series of Opera, WSPR = and QRSS3=20 audio with a known SNR.

For Opera and WSPR it was = easy=20 to determine the lowest SNR for a proper=20 decode. But for QRSS3 it is much = more difficult=20 as it depends on the operators "sharp eye". It=20 must be somewhere in the range of -24 to -28dB SNR=20 (@ 2.5kHz BW).

Today I did put all the QRSS3 = screenshots=20 in this range in a = website, where you can fill=20 in what you see (decode) for each=20 screenshot.

I would like to invite all = of you=20 to give it a try and send me the results (the = more entries the better the statistics).

After some=20 time (Feb 10th) will put=20 all results into some nice tables and graphs=20 and make them available.

Of course no personal=20 (individual) results will be=20 published. But based on the results every = participant=20 (who keeps his results) can see where he = ends.

 

The "QRSS3 = Challenge" can be found=20 at http://on7yd.strobbe.eu/QRSS/

 

73, Rik  ON7YD -=20 OR7T


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