The DNB3-WS-19.75 from Narda-MITEQ is a Low Noise Block with RF/Input Frequency 18.3 to 21.2 GHz, Output Frequency 950 MHz to 1.95 GHz, LO Frequency 17.35 to 19.25 GHz, Output Power 18 dBm, P1dB 18 dBm. More details for DNB3-WS-19.75 can be seen below.