The 3115-72-3840 from Cross Technologies is a Block Up Converter with IF frequency 3.59 to 4.09 GHz, RF/Output Frequency 7.25 to 7.75 GHz, LO Frequency 5.04 GHz / 8.7 GHz, P1dB 5 dBm, Output Power 5 dBm. Tags: Rack Mount. More details for 3115-72-3840 can be seen below.