The R&S FS-Z110 from Rohde & Schwarz is a Waveguide Mixer with RF Frequency 75 to 110 GHz, LO Frequency 7.5 to 14 GHz, IF Frequency 5 MHz to 3.2 GHz, Conversion Loss 20 to 30 dB, LO Drive Level 18 dBm. Tags: Harmonic Mixer. More details for R&S FS-Z110 can be seen below.