[amsat-bb] FT-726 automatic Doppler control?

Anybody ever rig up automatic doppler tuning to a FT-726? Without a CI-V interface (or equivalent) the best idea I can think of is splicing a microcontroller in to push the up, down, and maybe the fast buttons on the microphone during a pass.

Then I'd just have to dial in the initial frequency before the pass starts.

73, Ryan KB1LKI AMSAT #37207