The QIQ7.1-8.5-3.5-20 from Qualink Microwave is a RF Mixer with RF Frequency DC to 3.5 GHz, LO Frequency 7.1 to 8.5 GHz, IF Frequency DC to 3.5 GHz, Image Rejection 40 dBc, Conversion Loss 7.5 dB. Tags: Module with Connectors, I/Q Mixer. More details for QIQ7.1-8.5-3.5-20 can be seen below.