The HBM19 from HXI is a RF Mixer with RF Frequency 40000 to 60000 MHz, LO Frequency 40000 to 60000 MHz, IF Frequency 10 MHz to 18 GHz, Conversion Loss 6.5 to 9.5 dB, LO Drive - Power +13 dBm nominal. Tags: Module with Connectors, Single Balanced Mixer. More details for HBM19 can be seen below.