The AT-MIX-4060L from AT Microwave is a Waveguide Mixer with RF Frequency 40 to 60 GHz, LO Frequency 40 to 60 GHz, IF Frequency DC to 21 GHz, Conversion Loss 10 dB, LO Drive Level 10 to 16 dBm. Tags: Balanced Mixer. More details for AT-MIX-4060L can be seen below.