Message-Id: <5.1.0.14.0.20040319093117.00b89a80@u0019445.kuleuven.be>
Date: Fri, 19 Mar 2004 09:40:17 +0100
To: rsgb_lf_group@blacksheep.org
From: Rik Strobbe <rik.strobbe@fys.kuleuven.ac.be>
In-Reply-To: <001301c40d3e$df69c1c0$6507a8c0@Main>
References: <000701c4028d$f7e71f60$1f00a8c0@dellboy>
 <521187031.20040305220059@73.ru>
 <1079647161.405a1bb9d2765@webmail2.kuleuven.be>
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Subject: Re: LF: Re: not exactly LF
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Hi Alan,

On the webpage they say :
"Both stations used new Wenzel Ultra-Low-Noise 5MHz reference oscillators 
as the phase-locking frequency references. Short-term
stability on the order of 4 x 10-13 is required to keep the signals within 
a 1Hz filter bandwidth of the demodulating software."

In fact they used QRSS1 (or 1.2 WPM), seems a bit the grey zone between 
ordinary CW and QRSS.
It is interesting to note that even at 1 sec/dot a QRSS viewer can dig up 
signals that cannot be copied by ear.

73, Rik ON7YD

At 23:11 18/03/2004 +0000, you wrote:
>Hi Rik the mind boggles a bit when you think of the stability required for
>QRSS up there even 3 sec dot mode. Still I suppose it all relative and you
>can read QRSS even if it "zips across" the screen, and need retuning.
>Freddie was demo'ing SpecLab at one of the recent Martlesham uWave events. I
>think he was suggesting it as a beacon monitor.
>Cheers de Alan G3NYK
>
>----- Original Message -----
>From: "Rik Strobbe" <Rik.Strobbe@fys.kuleuven.ac.be>
>To: <rsgb_lf_group@blacksheep.org>
>Sent: 18 March 2004 21:59
>Subject: LF: not exactly LF
>
>
> > It's not exactly LF, but W2SZ/4 and WA1ZMS/4 claim a new world record
> > on 241GHz ... using QRSS.
> > See : http://www.mgef.org/zms_241_vucc.htm
> >
> > Nice to see that a mode that has his origin on LF found it's way to
> > the other end of the spectrum (although some might regret that "the
> > disease" is speading)
> >
> > 73, Rik  ON7YD