[RTTY] PSK31 is faster (Was FD RTTY Question)

[Alex Malyava]

Why don't we just invent/introduce some new RTTY standard -
the one with 6 bits instead of 5 - covering whole alphabet and digits
without any FIGS/LTRS and speed it up a little bit to compensate an extra
bit? Or drop one stop bit to save the length? Or use 3 frequency FSK -
shift left is "0", shift right is "1" and middle is sync/start/stop ?

On Wed, Jun 27, 2012 at 3:30 PM, Kok Chen <chen at mac.com> wrote:


>  . . .



> Other than the inefficiency of two tone FSK, RTTY's weakest point is
> arguably the Baudot encoding that requires LTRS and FIGS shifting.
>  Especially with contest exchanges where you shift between FIGS and LTRS
> very often.  And even more FIGS needed when you engage USOS.
>
> Not only do the shifts add extraneous (non-printing) characters to slow
> you down, they also cause a single bit errors to turn into burst errors
> (affecting multiple characters).
>
> 73
> Chen, W7AY
>
>