The AT-MIX-3350H from AT Microwave is a Waveguide Mixer with RF Frequency 33 to 50 GHz, LO Frequency 33 to 50 GHz, IF Frequency DC to 21 GHz, Conversion Loss 10 dB, LO Drive Level 13 to 20 dBm. Tags: Balanced Mixer, Down Converter Mixer, Up Converter Mixer. More details for AT-MIX-3350H can be seen below.