I agree with Dave's comments below with one enhancement. In the limited
amount of RTTY contesting I've done, running both MMTTY (Standard Profile)
and the Hal DXP-38, the outputs from the two decoders are identical most of
the time. The exception is only 1-2% of the time when MMTTY is not copying
and I simultaneously have a clear copy on the DXP-38. For example in the
2006 ARRL RTTY Round-Up, the only time I needed the Hal DXP-38 over MMTTY
was on the early morning 40 meter JA path from P4. For some reason MMTTY
Standard Profile seldom got a clean copy at that time, but the DXP-38 was
good enough to complete the QSO in one pass in all cases.
If I could have only one decoder, it would be MMTTY. But, it is easy enough
to run the DXP-38 simultaneously, so I do that "just in case". I suspect
that running three MMTTY decoder windows (Standard, Flutter and Multi-Path
profiles) would be just as good, maybe better, than the Hal DXP-38 ... if I
could just figure out how to keep all three windows running reliably. In
2005, multiple MMTTY windows worked great for me, but not this year for some
reason.
73,
Ed - W0YK
> I think Writelog is the best contest program for RTTY,
> especially if you are going to use it on a DXpedition where
> you expect pileups. Writelog is the only program that will
> look at a string of characters like: FDR8EK7WM6CVDF and
> highlight K7WM as a valid callsign. This function is
> accomplished by looking at AA5AU's database of RTTY
> Contesters:
> http://www.rttycontesting.com/downloads/downloads.htm This
> feature is invaluable in a pileup situation. Callsigns not
> in the database can be entered into the log by clicking on
> the first letter of the call.
>
> Writelog will also do the functions you mentioned above.
> Current consensus seems to be that sound card demodulation
> using the program MMTTY is at least as good as hardware
> modems. Writelog fully supports the DXP-38, as well as
> MMTTY.
>
> Dave Hachadorian, K6LL
> Yuma, AZ
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