The MODEL 290-3 from Kratos is a UHF Datalink Transponder with a frequency range from 358 to 380 MHz. It is a command receiver, digital command decoder, digital telemetry encoder, telemetry transmitter, and target interface enclosed in a single lightweight package. This transponder has 16 frequency channels and supports the GMSK modulation scheme. It receives commands transmitted by the ground control station and interfaces with the vehicle management computer or autopilot. The autopilot can then send a serial data stream back to the transponder where the telemetry downlink is then transmitted down to the ground control station. It also has three antenna ports to support multiple antenna inputs via the vehicle RF switch and allows multiple antenna inputs to be toggled through for the strongest signal.
The MODEL 290-3 requires a DC supply from 22 to 32 V and consumes less than 80 W of power. It is available in a MIL-STD-810-compliant enclosure that measures 5.00 x 2.95 x 6.00 inches with SMA-female connectors. This transponder is suitable for use in autopilot interface and command and telemetry applications.
