Teeny-Tiny Cost-Effective Transponders From Sandia
We're not quite sure what they're feeding people in NM these
days, but the state has become a nexus of avionics innovation...
such as the news that there is a NEW small-form factor Transponder
Sheriff in town. SANDIA Aerospace, an Albuquerque based avionics
manufacturer, has announced a new Mode C Transponder with built-in
The small and light weight STX 165 sports a ½ 3ATI front
bezel and measures approximately 7” inches behind the panel
depth. The small panel space requirement allows the STX 165 to be
mounted outside of the center stack, reserving that space for other
In addition to displaying transponder code, the STX 165 also
displays Pressure Altitude, Three timer functions and (with the
addition of an optional OAT Probe), Outside Air Temperature,
Density Altitude and even an icing alert. The STX 165 has an
introductory list price of $1700.
Sandia is also introducing a remote version, the STX165R. The
STX165R is ideal for interfacing with onboard Nav Management
systems and for use in UAV applications. Starting next Monday, you
can see the STX at a little place called Oshkosh (you MAY have
heard of it) in Hangar C Booth, number 3007.