One other thing I forgot to mention above - the need for squeeky clean key contacts or electronic conditioning of the inputs by using FET's has been made obsolete with this keyer version.? Since we only have to determine KEY UP or KEY DOWN even with analog inputs this is much easier than trying to decode a specific voltage threshold accurately to determine dot or dash or hand key on a single line.
Selection of Paddles or Hand Key/External keyer is now made in a menu item - all explaned in the included manual.
Jim - W0EB
Jim Sheldon