The T3-18GLS from Marki Microwave is a RF Mixer with RF Frequency 0.01 to 18 GHz, LO Frequency 0.01 to 18 GHz, IF Frequency 0.001 to 10 GHz, Conversion Loss 8 to 13.5 dB, LO Drive - Power 15 to 25 dBm. Tags: Microstrip, Module with Connectors, Two Tone Terminator Mixer. More details for T3-18GLS can be seen below.