The DNB3-WS-19.75 from Narda-MITEQ is a Low Noise Block with Input RF Frequency 18.3 to 21.2 GHz, Output RF Frequency 950 MHz to 1.95 GHz, LO Frequency 17.35 to 19.25 GHz, Gain 38 dB, Noise Figure 15 dB. More details for DNB3-WS-19.75 can be seen below.