The M1-1020 from Marki Microwave is a RF Mixer with RF Frequency 10000 to 20000 MHz, LO Frequency 10000 to 20000 MHz, IF Frequency DC to 4 GHz, Conversion Loss 6 dB, LO/RF Isolation 35 dB. Tags: Surface Mount, Double Balanced Mixer. More details for M1-1020 can be seen below.