The SYSMM2X4345 from Narda-MITEQ is a RF Mixer with RF Frequency 43000 to 45000 MHz, LO Frequency 20500 to 20500 MHz, IF Frequency 2000 to 4000 MHz, Image Rejection 15 dB, Conversion Gain 29 dB. Tags: Module with Connectors. More details for SYSMM2X4345 can be seen below.