[RTTY] 2Tone - not better than MMTTY on Florida East Coast
Dave Hachadorian
k6ll at arrl.net
Fri Mar 15 14:50:19 EDT 2013
>In listening to a dozen or more RTTY signals from Europe, 2Tone
>did not
>decode as accurately as MMTTY at my QTH, whether the signal was
>strong or
>weak, MMTTY decoded more accurately. Most of the signals had
>flutter on
>them and even though flutter was selected on 2Tone, MMTTY still
>decoded better.
I haven't had much luck with the "flutter" setting. "Normal"
always seems better to me, even on fluttery signals. The jury is
still out, in my mind anyway, between filter 1 and filter 2. I'm
leaning toward filter 1. Maybe G3YYD can fill us in on his
survey results.
>I really miss not having the X-Y scope on 2Tone. Perhaps
>there's a way to turn X-Y on?
I think 2tone is most valuable as a complement to MMTTY, rather
than a total replacement. If you have them both running, and the
mark and space frequencies are identical in both programs, you
can use the x-y scope in the MMTTY window for tuning.
>On my K3, when 2Tone is keyed, I hear a "clicking" sound on my
>monitor
>before the tones are transmitted. The "click" is annoying and
>I
>don't hear
>that "click" when using MMTTY.
I use FSK, so I use MMTTY in the main DI Window, and 2tone in the
receive-only window. You can do the same with AFSK.
>For those of you who have 2Tone decoding better then MMTTY, I
>am happy for
>you!
Don't give up on it. Try "Normal," "Filter 1," and use 2tone in
the receive-only window.
Dave Hachadorian, K6LL
Yuma, Arizona
.
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