[UK-CONTEST] OT-QRSS CW Challenge

Ray James gm4cxm at yahoo.co.uk
Fri Feb 3 17:19:22 PST 2012


Hi all,
The following has gone from the LF group to the Microwave group and as there will be plenty CW operators here, what better place to have additional input to improve the research results.

73 Ray GM4CXM.


pse have a go at this QRSS challenge and send in your results.
He needs as many responses as possible for a statistically valid result.

Andy
G4JNT


---------- Forwarded message ----------
From: Rik Strobbe <Rik.Strobbe at ...>
Date: 2 February 2012 17:17
Subject: LF: QRSS3 "challenge"
To: "rsgb_lf_group at ..." <rsgb_lf_group at ...>


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


More information about the UK-Contest mailing list