I would like to try OPDS32 and see what
happens. I don't see OP32 available for 73 band but am sure it could
be[?]
From:
[email protected]To:
[email protected]Date:
Thu, 5 Dec 2013 18:28:17 +0000
Subject: Re: LF: Looking for 73 kHz band modes
to try...
Big problem is the s/n Bob
,
qrss and Op64 are in
the -43 may be -49 dB s/n with
the op-wspr correction ,
Op64 is a true data mode ,
your going need to be a good + 20 + 25
dB stronger for any other data mode to decode ,
this side of the pond , the Opera coding offers , a 3
way decode split ,
If you get a couple of OP64 runs
and 'local' decodes , the s/n levels
will give a good indication as to what
the path will support , the s/n level is the
average along the time line , I think the
ros-mf-2 data mode at -24 -27 dB ,
about the same as wspr-2 is the lowest
s/n keyboard - keyboard data mode ,
next up mfsk , but you need
3K b/w
The only other system is
'Wolf' , that's a linear psk mode , which I think
will go via your valve tx , there are a few
on here that will remember how to use it
..
Other than that ? any one
?
73 -G,
Sent: Thursday, December 05, 2013 5:55 PM
Subject: LF: Looking for 73 kHz band modes to
try...
Any comments regarding different modes to try would be
appreciated.
QRSS60 has done well but time to move on with one or a
couple digi modes might be worth trying-Bob, WG2XRS/4
NY
