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Micro IFF Mode 5 Combined Transponder – Receiver for Tactical UAVs

The RT-2087/ZPX-1 is a complete, low-SWaP Combat ID system designed to satisfy Identification Friend or Foe (IFF) Transponder and Automatic Dependent Surveillance – Broadcast (ADS-B) requirements for Uncrewed Aircraft Systems (UAS) operating both in battlefield and civilian controlled airspace.

When combined with a micro-crypto e.g. KIV-79, UAS as small as Group 1 have available the latest IFF encryption standard used by NATO and its allies. Continuing the spirit of low SWaP, the ZPX-1 offers AIMS-certified RT-2087/ZPX users an upgrade path that includes Mode S Enhanced Surveillance (EHS), ADS-B IN, and Mode 5 squitter Level 2/2-B IN receive capability for Detect and Avoid.

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91 GRAM 250 Watt AIMS
Ultra-Light Transmit Power Certifed

The RT-2087/ZPX-1 system requirements are derived from TSO C112e, C166b, and C88b.

Tech Specs

Specification Value
Input Voltage/Power 11-33VDC
3.5W Continuous (STBY)
5.5W Continuous (NORMAL)
6W Peak (8ms maximum)
Size 83 x 47 x 21 mm
Weight 91 grams
Operating Temp -45° to 71° C
SIF & Mode S MTL @
1030 MHz MTL (sensitivity)
-76 dBm ±2 dB
Mode 5 MTL (sensitivity) -80 dBm
1090 MHz Tx Power 250W (54 dBm)
Receiver Sensitivity
ADS-B Rx MDL -79 dBm ±2 dB
Mode 5 MDL L2/2-B Rx -84 dBm
Range -1000 to 126,750 ft
Control Interface
Baud Rate 57,600 bps RS-485/-232
Protocol GDL90+
Position Interface
Baud Rate 115,200 bps RS-232
Protocol uAvionix OEM Protocol
Mode 5 Level 2/2B and ADS-B IN Traffic
Baud Rate 115,200 bps RS-232
Protocol GDL90+ / DoD AIMS 23-901
KIV Interface
AIMS 04-900(A) Option B (KIV-77 / KIV-79)
1030/1090 MHz Transponder Antenna
10/100 Ethernet Adapter
uAvionix truFYX SIL 3 Position Source
NSM programming for crypto emulator

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