Used Garmin GTX-33, p/n: 011-00779-00, s/n: 84782229. Sold as removed. See the same radar traffic your ATC controller is watching — with the GTX 33 remote-mounted Mode S digital transponder. This IFR-certified unit features traffic datalink capability and also meets the European mandate for Mode S level 2 surveillance. The GTX 33 is an all solid-state design, which makes for lower power consumption and reduced heat emissions. The transmitter delivers up to 250 watts of nominal power output. And other highlights include remote ident and auto standby, a Traffic Information Services (TIS-A) interface, plus altitude monitor with voice alerts.