The M3-0408 from Marki Microwave is a RF Mixer with RF Frequency 4000 to 8000 MHz, LO Frequency 4000 to 8000 MHz, IF Frequency DC to 4 GHz, Conversion Loss 5.5 dB, LO/RF Isolation 35 dB. Tags: Surface Mount, Double Balanced Mixer. More details for M3-0408 can be seen below.
