Used Garmin GTX 32 p/n: 011-00768-00 s/n: 83900221. The remote-mounted GTX 32 is a full-featured, TSO-certified Mode C digital transponder. Its proven performance and reliability bring a whole new level of transponder utility to your aircraft. GTX 32 features a solid-state design, and with no warm up time, lower power consumption and much lower heat emissions, you’ll enjoy a longer service life. GTX 32 provides 200 watts nominal power output.