The SHM 170-260 | 2000025 from Radiometer Physics GmbH is a Waveguide Mixer with RF Frequency 170 to 260 GHz, LO Frequency 85 to 130 GHz, IF Frequency DC to 18 GHz, LO Drive Level 10 dBm, P1dB -5 dBm. Tags: Sub-Harmonic Mixer. More details for SHM 170-260 | 2000025 can be seen below.