Rick,
the K2 works ok for the wider modes, with the SSB module built in.
I have used it e.g. for MT63 2k, and it worked fine.
You do need the modification which temperature-compensates the vfo.
MFSK16 is no problem with the K2, I have used it succesfully with gMFSK.
I bought the FT897D, which has a very precise VCXO later, because
it has 6 and 2 meters and 70 cm, so I take only one rig in the camper
(more space left for bottles to cool the operator). I can leave that on
for month and it will stay within 10 Hz at any temp.
73,
Rein EA/PA0R/P
-Ursprüngliche Nachricht-
Von: digitalradio@yahoogroups.com
Gesendet: 13.03.08 00:50:04
An: digitalradio@yahoogroups.com
Betreff: [digitalradio] Does K2 work OK for wider digital modes?
With some of the recent comments about filtering and the use of the
Elecraft K2, I was wondering if these rigs are OK for the wider digital
modes that can exceed 2000 Hz.
Also, do you find that most rigs with no TCXO (such as the K2), will
work OK for the digital modes, including MFSK16 and similar modes that
require very close tolerance on frequency stability?
This was one of the things that prompted me to buy the ICOM IC-7000 for
my wife, since the TCXO is built in and it has something around 0.5 ppm
frequency stability. This is better than some other rigs, such as the
Ten Tec Argonaut V which has TCXO, but not that that accuracy. I did not
find any problem in using it, but I suspect that this mostly becomes an
issue if you are in an environment with changing ambient temperatures,
such as outside, field day, emergency use, etc.
73,
Rick, KV9U
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