The SFB-28-N1-M from ERAVANT is a Waveguide Mixer with RF Frequency 26.5 to 40 GHz, LO Frequency 26.5 to 40 GHz, IF Frequency DC to 13 GHz, Conversion Loss 12 dB, LO Drive Level 13 to 18 dBm. Tags: Balanced Mixer. More details for SFB-28-N1-M can be seen below.