The DBE3-28.75 from GeoSync Microwave is a Low Noise Block with Input RF Frequency 27.5 to 28.5 GHz / 28.3 to 29.3 GHz / 29 to 30 GHz, Output RF Frequency 950 MHz to 1.95 GHz, LO Frequency 26.55 GHz / 27.35 GHz / 28.05 GHz, Gain 30 ±3 dB, Noise Figure 14 dB. More details for DBE3-28.75 can be seen below.