The 920 Series from MI-WAVE is a Waveguide Mixer with RF Frequency 26.5 to 140 GHz, LO Frequency 8 to 12 GHz, LO Drive Level 6 to 15 dBm, Input Power 15 dBm(RF), 18 dBm(LO), Operating Temperature 0 to 50 Degrees C. Tags: Harmonic Mixer. More details for 920 Series can be seen below.