Mike Taglieri wrote: >>I'll need a Mode C transponder in my plane, and one I wanted is for sale used at a decent price from Aircraft Spruce. If I wind up getting it, I could hook it up to a battery and see that the lights go on, etc., but how would you actually test a transponder (or any used instrument, really), without having a flying airplane to put it in? <<
My understanding is that with the advent of ADS-B, transponders will become somewhat obsolete in a hurry, replaced by ADS-B hardware instead. That may explain why it's so cheap, and may be good reason to hold off...you either won't need one or they will be a dime a dozen... Mark Langford, Harvest, AL ML at N56ML.com www.N56ML.com