The PM-20-411 from Pulsar Microwave is a RF Mixer with LO Frequency 1.85 to 1.91 GHz, IF Frequency 70 MHz, Conversion Loss 8 dB, LO Drive - Power 17 dBm, IP3 28 to 30 dBm. Tags: Module with Connectors, Triple Balanced Mixer. More details for PM-20-411 can be seen below.