You should have, as part of the initial setup, some sort of Slant Adjust. It
adjusts the signal to your computer clock. Or vice versa.

120 LPM is the most commonly used. I see nothing in my LPM list for 100.

My list shows the standard IOC to be 576. 288 is used by only some services.

My info is ten years old and I'm only now getting ready to put in the updated
FAX software and hardware for Windows 98.

73,
Bill, K5BY