The XDL-C301-HR from Honeywell Aerospace is a Space Transmitter that has a frequency range of 8025-8400 MHz. This X-band transmitter has an input data rate of up to 700Mbps and supports QPSK, 8PSK,16APSK,32APSK, and 64APSK modulation formats. It has a flexible SDR design, selectable modulation, and output power configurations. The transmitter has a radiation tolerance TID of 12krad and SEE of up to 20MeV. It supports RS422/UART protocol for the TTC interface and LVDS for the data interface. The transmitter requires a supply voltage of 20-36 V and has a power consumption of less than 65 W. It has a mass of less than 1.5 Kg and measures 165 x 150 x 100 mm. The transmitter has an expected life of greater than 6.5 years and is optimized for small to medium size missions.