The IR0104HC1A from Narda-MITEQ is a RF Mixer with RF Frequency 1000 to 4000 MHz, LO Frequency 1000 to 4000 MHz, IF Frequency 20 to 40 MHz, Image Rejection 18 dB, Conversion Loss 9 dB. Tags: Module with Connectors. More details for IR0104HC1A can be seen below.