[RTTY] Prefix characters

[Phil Sussman]

I know this has probably been brought up before, but
somehow I can't locate the information.

When running RTTY (not necessarily in a test) and you
are beginning to transmit, I somehow recall that you
should first trasnmit a particular character to aid
in synchronization. Was it a SPACE, a LINE FEED, or
something of that nature to 'clear' the next line of
text from the receiver's screen.

I'm sure Chen knows the answer from a technical point
of view. I'm thinking; however, of day to day operation.

73 de Phil - N8PS