The DBE3-19.875 from GeoSync Microwave is a Low Noise Block with RF/Input Frequency 17.7 to 18.7 GHz / 18.3 to 19.3 GHz / 20.2 to 21.2 GHz, Output Frequency 950 MHz to 1.95 GHz, LO Frequency 16.75 GHz / 18.75 GHz / 19.25 GHz, Output Power 18 dBm, P1dB 18 dBm. More details for DBE3-19.875 can be seen below.