The U4-2147 from Extreme Waves is a RF Up-down Converter with Gain Conversion Gain: 12 to 15 dB (Tx), 19 to 22 dB (Rx), IF Frequency 2 to 10 GHz, Input Power 0 to 10 dBm, LO Frequency 8 to 22 GHz / 4 to 11 GHz, Noise Figure 8 to 20 dB (Rx), 19 to 20 dB (Tx). Tags: Module with Connectors. More details for U4-2147 can be seen below.