The WHMB-28-0001 from Farran is a Waveguide Mixer with RF Frequency 26.5 to 40 GHz, LO Frequency 3.3 to 10 GHz, IF Frequency DC to 1 GHz, Conversion Loss 25 to 30 dB, LO Drive Level 18 dBm. Tags: Harmonic Mixer. More details for WHMB-28-0001 can be seen below.