The J2012N from Eclipse MDI is a RF Mixer with RF Frequency 2000 to 12000 MHz, LO Frequency 2000 to 12000 MHz, IF Frequency 0 to 2000 MHz, Conversion Loss 5.5 to 7 dB, LO Drive - Power 13 dBm. Tags: Double Balanced Mixer. More details for J2012N can be seen below.