The HSHM0504 from Renaissance Electronics Corporation is a Waveguide Mixer with RF Frequency 172 to 204 GHz, LO Frequency 84 to 100 GHz, IF Frequency 200 to 4000 MHz, Conversion Loss 4.5 to 6.5 dB, LO Drive Level 6.02 to 7.78 dBm. Tags: Harmonic Mixer. More details for HSHM0504 can be seen below.