Sandia Introduces Transponder

Sandia Aerospace announced a new Mode C transponder with built-in encoder. The lightweight STX 165 has a one-half 3ATI front bezel and measures 7 inches depth behind the panel. The small size allows the STX 165 to be mounted outside of the center stack, making that space available for other avionics. In addition to displaying the transponder code, the unit also displays pressure altitude, has three timer functions, and with the addition of an outside air temperature probe, outside air temps, density altitude and even icing alerts.

The introductory price is $1700.

For more information, go to the Avionics Place at AirVenture, Hangar C, Booth 3007 or visit


KITPLANES Editor Mary Bernard began her career in aviation journalism in 1998 and has worked in publishing for more than 15 years.

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