The WHMB-05-0001 from Farran is a Waveguide Mixer with RF Frequency 140 to 220 GHz, LO Frequency 8.75 to 13.75 GHz, IF Frequency DC to 2 GHz, Conversion Loss 40 dB, LO Drive Level 12 to 15 dBm. Tags: Harmonic Mixer. More details for WHMB-05-0001 can be seen below.