Aviation's Panel Mount Avionics Installation Leader

The panel-mounted GTX 327 is a TSO-certified Mode C digital transponder. Its innovative features, proven performance and reliability bring a whole new level of transponder utility to your aircraft. Looking for a more affordable alternative? The panel-mounted GTX 320A Mode C transponder features a pilot-friendly design minus the DSTN LCD display.

Enjoy Innovative Features


GTX 327 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. It provides 200 watts nominal power output and has an easy-to-read DSTN liquid crystal display which reverses the numbers out of black for optimal viewing. An innovative keypad makes entering a squawk code a snap, and a dedicated VFR button allows for quick-and-easy VFR squawking. Similar to the GTX 330 Mode S transponder, the 327 also offers several timing and display functions, including flight time, count-up and count-down timers, as well as current pressure altitude.

GTX 327: A whole new standard in transponder utility.

  • Panel mounted, 4096 codes with altitude reporting capability
  • Push button code entry
  • Dedicated 1200/VFR button
  • Flight time
  • Count up or down timers
  • Pressure altitude display
  • TSO C74 Class A1, certified up to 50,000 feet
  • 14/28 Multi-voltage unit requires only 15 watt input

  • GTX 327 transponder
  • Installation kit
  • Pilot's guide

California Residents:

Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.