The M3308 from Advanced Microwave Inc is a RF Mixer with RF Frequency 18000 to 26500 MHz, LO Frequency 18000 to 26500 MHz, IF Frequency 0 to 4000 MHz, Conversion Loss 7 to 8 dB, LO/RF Isolation 35 to 30 dB. Tags: Module with Connectors, Double Balanced Mixer. More details for M3308 can be seen below.