Fine, John,
That would be intresting, as the psk and rtty 'runs did not produce a clear
print over any sustained period , if you have any time , as the band condx
are stable, i could change over to amtor-fec at 85 hz shift , see how that
prints .. that is a mode , you can send by simple fsk , ?
Graham ..
----- Original Message -----
From: "John Pumford-Green GM4SLV" <[email protected]>
To: <[email protected]>
Sent: Monday, October 15, 2007 10:43 PM
Subject: Re: LF: Re: Olivia data test
On Mon, 15 Oct 2007 22:37:25 +0100
"Graham" <[email protected]> wrote:
Thanks for that John,
Thats quite usefull , looks to be better than the psk31 , how much
of the 'qsb' cycle is it printing ?
As a rough guess , thats 2 mins of text , which I think is over the
qsb period -60/90 seconds ? , in which case the mode is quite
effective on this band ,
only problem is , it transmitts tones in pairs and needs a linea
system .
Tnx
Hi Graham and the LF group,
Yes I rather cheated by picking the best bit. It does get errors in the
QSB dips, I can kick the decoder away again and see if I can quantify
the period of good/bad copy.
I believe MFSK16 would be okay for non-linear amps, as it's a single
tone system.
Cheers,
Joh
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