The FS-Z140 from Rohde & Schwarz is a Waveguide Mixer with RF Frequency 90 to 140 GHz, LO Frequency 9 to 14 GHz, IF Frequency 5 MHz to 3 GHz, Conversion Loss 28 dB, LO Drive Level 13.5 to 16 dBm. Tags: Harmonic Mixer. More details for FS-Z140 can be seen below.