Thanx mackrackit i know what you say but my problem is not here because, if i don't use the Manchester Encoding/Decoding, it work like a charm, event at 9.6Kbps (i'm glad to saw that).

When i transmit in "clear mode" everything is good.

My error is here :

SERIN2 RECEPTION, 16468, [ManchesterWord]

Because ManchesterWord is double sized than normal byte.
I've tried with SERIN2 RECEPTION, 16468, [STR...

but it's impossible because ManchesterWord is "VAR WORD".

Because i'm just beginner with serin / serout, i don't know all the tips and there is probably one wich can do the rest.

(and sorry for my bad English language, mine is French)
Lyd.