The J0520M from Eclipse MDI is a RF Mixer with RF Frequency 0.5 to 2 GHz, LO Frequency 0.5 to 2 GHz, IF Frequency DC to 0.5 GHz, Conversion Loss 6.5 to 9.5 dB, LO Drive - Power 10 to 13 dBm. Tags: Module with Connectors, Double Balanced Mixer, Down-Conversion Mixer. More details for J0520M can be seen below.