The IRM100-1000 from Sirius Microwave is a RF Mixer with RF Frequency 100 MHz to 1 GHz, LO Frequency 100 MHz to 1 GHz, IF Frequency 20 to 40 MHz, Image Rejection 22 to 25 dB, Conversion Loss 9 dB. Tags: Module with Connectors, Image Reject Mixer. More details for IRM100-1000 can be seen below.