The J1020M from Eclipse MDI is a RF Mixer with RF Frequency 1000 to 2000 MHz, LO Frequency 1000 to 2000 MHz, IF Frequency 0 to 1000 MHz, Conversion Loss 6.5 to 7.5 dB, LO Drive - Power 10 dBm. Tags: Double Balanced Mixer. More details for J1020M can be seen below.