The NJT5668 from New Japan Radio is a Block Upconverter with DC Voltage 15 to 30 V, Gain 58 dB(Conversion Gain), Impedance 50 Ohms, Input Frequency 950 MHz to 1.265 GHz, LO Frequency 5.76 GHz. Tags: Module with Connectors. More details for NJT5668 can be seen below.