The QIQ8.5-13.5-3.5 from Qualink Microwave is a RF Mixer with RF Frequency DC to 3.5 GHz, LO Frequency 8.5 to 13.5 GHz, IF Frequency DC to 3.5 GHz, Image Rejection 30 dBc, Conversion Loss 8 dB. Tags: Module with Connectors, I/Q Mixer. More details for QIQ8.5-13.5-3.5 can be seen below.