From: "WE0H" <we0h@genesiswireless.us>
To: rsgb_lf_group@blacksheep.org
Date: Fri, 19 Mar 2004 22:00:43 -0600
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Subject: RE: LF: Re: not exactly LF
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QRSS-1 is smokin fast compared to he usual -30 or -60. I wonder if they
could have gone farther with -60 or something slow?

Mike
WE0H
WD2XGI


-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org
[mailto:owner-rsgb_lf_group@blacksheep.org]
On Behalf Of Rik Strobbe
Sent: Friday, March 19, 2004 2:40 AM
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Re: not exactly LF

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