The DMY0518L from Narda-MITEQ is a RF Mixer with RF Frequency 5000 to 18000 MHz, LO Frequency 5000 to 18000 MHz, IF Frequency 0 to 7000 MHz, Conversion Loss 6 dB, Noise Figure 7 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for DMY0518L can be seen below.