The FDB-42-01 from Ducommun is a Waveguide Mixer with RF Frequency 18 to 26.5 GHz, LO Frequency 18 to 26.5 GHz, IF Frequency DC to 8 GHz, Conversion Loss 6 dB, LO Drive Level 10 to 13 dBm. Tags: Balanced Mixer. More details for FDB-42-01 can be seen below.