The AQ-4XW from Spacek Labs is a Frequency Multiplier with Input Frequency 8.25 to 12.5 GHz, Output Frequency 33 to 50 GHz, Input Power 12 dBm, Output Power 17 dBm, Frequnecy 8.25 to 12.5 GHz. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for AQ-4XW can be seen below.