Sandia STX 165 Panel Mount Transponder
Manufacturer Part Number: 705832-00
Sandia STX 165 Panel Mount Mode C Transponder
General Description
Sandia STX 165 Panel Mount Mode C Transponder - effortlessly complements an aircraft's ADS-B UAT installation. It integrates with the most popular UAT systems and sends the transponders' squawk code directly from the STX-165 to the UAT transceiver, eliminating the need to enter the squawk code twice and reducing code setting errors. This panel mount transponder uses a 1/2 3ATI panel cutout. It boasts a bright OLED display that is readable in any lighting conditions and automatically dims for nighttime operations. The solid-state design provides 200 watts nominal output with no warm-up time, while power requirements remain minimal.
- Simplified installation with a built-in encoder
- ADS-B Compatible with UAT 978 systems
- Three function timer includes elapsed time, up timer, and down timer
- Compatible with STP 78 OAT probe (sold separately)
- Compact and lightweight, weighs only 1.3 lb
- Ideal for LSA, glider, and UAV operations with a low current requirement
- DO160F, DO 178B level C, TSO C74d, TSO D88b (encoder) certified
| Weight | 1.3 lb |
| Dimensions | 7.34 x 3.5 x 1.78 in |
| Input Voltage | 11 - 33 VDC |
| Current Requirements | 430 mA @ 14 VDC 210 mA @ 28 VDC |
| Power Output | 200 watts, nominal |
| Transmitter Frequency | 1,090 KHz |
| Receiver Frequency | 1,030 MHz |
| Inputs | built-in 35k altitude encoder Sandia SPT78 (optional) OAT probe |
| Temperature | -20°C to 55°C |
| Altitude | -1,000 to 35,000 ft |
| Certification | DO160F, DO 178B level C, TSO C74d, TSO D88b (encoder) |









