At 01:42 AM 1/28/2012, you wrote: >ACK makes a fine encoder that has held up well. >t's only good to 30,750 feet though. >Otherwise it'll work fine and it's only $205 at the first place I >checked just now. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
$169 from Aircraft Spruce and you can select a models that operate to 62K feet if you want to spend the money. I decided to save a few dollars and not fly above 30K. Larry Flesner