The WHMB-05 from Farran is a Waveguide Mixer with RF Frequency 140 to 220 GHz, LO Frequency 4.6 to 18.33 GHz, IF Frequency 10 MHz to 1 GHz, Conversion Loss 40 to 50 dB, LO Drive Level 15 dBm. Tags: Harmonic Mixer. More details for WHMB-05 can be seen below.