The 970U-47.2/51.4/1.85mmF from MI-WAVE is a Block Downconverter with Input RF Frequency 47.2 to 51.4 GHz, Output RF Frequency 37.5 to 42.5 GHz, DC Voltage -3 to 29 V, Operating Temperature -40 to 85 Degree C. More details for 970U-47.2/51.4/1.85mmF can be seen below.