On Aug 2, 2011, at 5:07 PM, Joe Subich, W4TV wrote:
> Remember, "Phone" includes AM,
> SSB. FM, SSTV, DV and FSTV.
Precisely.
"Phone" appears to be the euphemism for all modes that encode non-textual
information (speech, pictures, etc).
"CW" is distinct from "Phone" because it represents textual information, but is
meant for non-textual (usually aural) decoding.
The remaining group (what W9OL very correctly pointed out as "not CW nor
Phone") are the "digital modes," which also encodes textual information and but
unlike "CW," they are decoded by machine back into textual information.
You can call this last group anything you like. But to call it "RTTY" is plain
wrong, since most of the "not CW nor Phone" transmissions today are not even
made in RTTY any more.
73
Chen, W7AY
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