The NJT8371UFMR from Nisshinbo Micro Devices is a Block Upconverter with DC Voltage 36 to 60 V, Gain 66 to 72 dB(Linear Gain), Impedance 75 Ohms, Input Frequency 950 MHz to 1.7 GHz, LO Frequency 12.80 GHz. Tags: Waveguide. More details for NJT8371UFMR can be seen below.