[RTTY] List of Illegal Data modes in the US

[Kok Chen]

On Nov 23, 2013, at 11:25 AM, Don Hill AA5AU wrote:

> Other than Pactor 4, could someone please send us a list of other wide-band digital modes that are currently illegal in the United
> States?

I forget its name now, but remember that mode that popped up a couple of years ago where the author had identified as a "spread spectrum" mode? (It is actually no more "spread spectrum" than some existing modes, and it is also not especially wideband, either, and the software for it was actually somewhat open).

Someone must remember the name?

But the "spread spectrum" designation got it banned from FCC jurisdiction pronto :-).

73
Chen