The BRC-1200 from Communications & Power Industries is a Low Noise Block with Input RF Frequency 3.40 to 4.20 GHz, Output RF Frequency 950 MHz to 1.750 GHz, LO Frequency 5.15 GHz, LO Stability ±10 kHz, Gain 59 to 61 dB. More details for BRC-1200 can be seen below.