The SFB-15-N1-A from ERAVANT is a Waveguide Mixer with RF Frequency 50 to 75 GHz, LO Frequency 50 to 75 GHz, IF Frequency DC to 25 GHz, Conversion Loss 9 to 12 dB, LO Drive Level 10 to 15 dBm. Tags: Balanced Mixer. More details for SFB-15-N1-A can be seen below.