The AT-3MIX-5075 from AT Microwave is a Waveguide Mixer with RF Frequency 50 to 75 GHz, LO Frequency 16.5 to 25 GHz, IF Frequency DC to 12 GHz, Conversion Loss 10 dB, LO Drive Level 15 to 20 dBm. Tags: Balanced Mixer, Down Converter Mixer, Up Converter Mixer. More details for AT-3MIX-5075 can be seen below.