The C-PLL 5.15 B from Swedish Microwave AB is a Low Noise Block with RF/Input Frequency 3.7 to 4.2 GHz, Output Frequency 1450 to 950 MHz (Inverted), LO Frequency 5.15 GHz, Output Power 15 dBm, P1dB 15 dBm. More details for C-PLL 5.15 B can be seen below.