chuck wrote in :

Hey Larry,

A small clarification. There are two types of AMTOR: ARQ and
FEC. The ARQ mode does involve error correction, but the FEC
(which is Forward Error Correction, not Full Error
Correction) does NOT. AMTOR B, which is FEC AMTOR, simply
sends each character twice. If that doesn't do it, the
character is lost or received erroneously.

73,

Chuck

Yeah, they wouldn't use FEC with email as the header would be trashed.....