The MDH500 from R & K Company Limited is a RF Mixer with LO Frequency 1 to 500 MHz, IF Frequency DC to 500 MHz, Conversion Loss 5.5 to 8.5 dB, LO Drive - Power 17 dBm, P1dB 8 dBm. Tags: Drop-In, Double Balanced Mixer. More details for MDH500 can be seen below.