The J2018L from Eclipse MDI is a RF Mixer with RF Frequency 2000 to 18000 MHz, LO Frequency 2000 to 18000 MHz, IF Frequency 0 to 700 MHz, Conversion Loss 6.5 to 8.5 dB, LO Drive - Power 7 dBm. Tags: Double Balanced Mixer. More details for J2018L can be seen below.