[GreenKeys] Re: Re: 30 Question

[Jack]

The BT and NNNN are still used by the military and
we use it in Army MARS when sending messages. The
BT is spoken as "break" and the NNNN is used at the
end of email messages.

When I used to copy the RTTY press, they often
ended TTY messages with the -30- in the middle of
the line.

Jack WA2HWJ