Graeme,
MMTTY is fully capable to support both FSK and AFSK. Just check its set up.
M1MM and Writelog easily implement MMTTY plug-in. Out of the whole MMTTY you
will only see its waterfall along with a small menu to set up. You can
easily find a convenient place place for the watrefall window among other
N1MM or Writelog windows on the screen, and will operate the contest with
usual contesting program keys or their combinations.
I for one prefer AFSK and low tones' set up. Having heard tones below 1 kc I
can easily tune to a station just by ears, without even loking at the
waterfall or so. Besides, with lower tones it is much easier to distinguish
dofferent signals. Besides, usual high FSK tones sound too high and
therefore too annoying, at least for me.
The pure FSK gives you a very significant advantage, you will never overpump
the transmitted signal and it will always be perfectly clean. The unproperly
adjusted AFSK, especially with the low tones, might produce a lot of
unpleasant products transmitted...
Just some brief thoughts.
73,
Vladimir VE3IAE also EU1SA
---
>
> My normal informal RTTY contest set up is a TS-570, a PK-232 and an
> old PII PC.
>
> I have just finished installing a MicroHam USB II unit on an IC-7400
> than runs with the DXLab suite on a decent laptop. This seems to
> receive AFSK RTTY ok, and the suite reads bands/modes OK.
>
> I'm not familiar with the MMTTY application though. Both MicroHam and
> the DXlab Winwarbler software talk about MMTTY, but it seems to be in
> respect of FSK. If I'm happy with AFSK [given the normal set up], is
> there anything to be gained by using FSK/MMTTY rather than AFSK?
>
> I'm also used to running the normal set up on USB on the TS-570, and
> I would probably do the same [or use LSB] on the IC-7400, but the
> IC-7400 has a specific RTTY mode that gives an internal decoder, as
> well as a specific RTTY filters. I find that in this mode, I cannot
> easily distinguish tones audibly due to the filtering. This would
> mean depending more on the graphical spectrum displays of the RTTY
> software. Winwarbler has a waterfall/spectrum that I think I
> understand OK, but it could be bettered [it's not contest designed
> software, more for casual use].
>
> If I decide to go more towards RTTY contests, would N1MM or Writelog
> provide a suitable visual display for when running the IC-7400 with
> its filters?
>
> If anyone uses Icom/N1MM or Icom/Writelog or Icom/Winwarbler, please
> let me know your comments on bugs/setup problems/display/etc....
>
> All help welcomed!
>
> Graeme
> G6CSY
>
> PS my thanks to everyone giving me points during WAEDX.
>
>
>
>
>
>
>
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