ACK makes a fine encoder that has held up well. It'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. It may be available for even less with some shopping.
Remember to keep the antenna clean. It's usually right in the exhaust slipstream and if you don't keep it clean ATC will start complaining that the altitude readout is jumping around. When people think they have an encoder or transponder problem often it's nothing more than a dirty antenna. Mike ____________________________________________________________ Globe Life Insurance $1* Buys $50,000 Life Insurance. Adults or Children. No Medical Exam. http://thirdpartyoffers.juno.com/TGL3141/4f23a6fc9a88c48d718st03vuc
