The DMY0418L from Narda-MITEQ is a RF Mixer with RF Frequency 4000 to 18000 MHz, LO Frequency 4000 to 18000 MHz, IF Frequency 0 to 4000 MHz, Conversion Loss 6 dB, Noise Figure 9.5 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DMY0418L can be seen below.