The GBDKA1720E from GeoSat Microwave is a Low Noise Block with Input RF Frequency 17.2 to 20.2 GHz, Output RF Frequency 950 MHz to 1.95 GHz, LO Frequency 16.25 to 18.25 GHz, Gain 25 to 35 dB, Gain Flatness 4 to 5 dB. More details for GBDKA1720E can be seen below.