[TenTec] FSK on Orion II?

[K5XS at aol.com]

Has anyone had success running FSK on the Orion II?
 
I am running MMTTY, and it works great on AFSK.  Receive works fine on  FSK, 
but when I send, the distant end (including the other side of the shack)  
receives garbage.
 
I have tried toggling the Mark state on the Orion II menu (from High to  
Low), but that doesn't make things any better.
 
I would like to use FSK because I _love_ the way the filters set up on the  
Orion.
 
I am no expert on RTTY, much less RTTY on an Orion, so any clues--no matter  
how basic--appreciated.
 
73 and Happy 2008 to all.
 
Bernie K5XS
 
 



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