Bill,
I use headphones mostly, sometimes turn on the speaker when my ears need a rest.
I have all three indicators in MMTTY/N1MM running (waterfall, tuning scope, and
bandscope). I fine tune using the bandscope although after 40 years of RTTY I
can tune by ear and be within 30 Hz without looking.
BTW, I don't use the ellipses in MMTTY, rather the Demodulator = FIR, which
gives a very crisp plus symbol on the display.
As I mentioned on the other reflector, running without a speaker or headphones
on RTTY makes as much sense as running CW or SSB without them!
73 de Bob - KØRC in MN
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