The MDM500 from R & K Company Limited is a RF Mixer with LO Frequency 0.1 to 500 MHz, IF Frequency DC to 500 MHz, Conversion Loss 6.5 to 9.5 dB, LO Drive - Power 10 dBm, P1dB 7 dBm. Tags: Drop-In, Double Balanced Mixer. More details for MDM500 can be seen below.