The DMM-2-250 from Crane Aerospace & Electronics is a RF Mixer with RF Frequency 1 to 500 MHz, LO Frequency 1 to 500 MHz, IF Frequency DC to 500 MHz, Conversion Loss 6.5 to 9 dB, LO Drive - Power 7 to 13 dBm. Tags: Module with Connectors, Double Balanced Mixer, Passive Mixer. More details for DMM-2-250 can be seen below.