The NJR2843E from Nisshinbo Micro Devices Inc. is a Low Noise Block with RF/Input Frequency Low Band:10.7 to 11.7 GHz, High Band:11.7 to 12.75 GHz, Output Frequency Low Band : 950 to 1.95 GHz, High Band : 1.1 to 2.15 GHz, LO Frequency Low Band : 9.75 GHz, High Band : 10.6 GHz, Gain 48 to 62 dB, Noise Figure 0.8 to 1 dB. More details for NJR2843E can be seen below.