The 217F from ACST GmbH is a Frequency Multiplier with Input Frequency 27.66 to 41.66 GHz, Output Frequency 83 to 125 GHz, Input Power 100 to 1200 mW, Output Power 19.5 dBm. Tags: Waveguide, Waveguide Multiplier. More details for 217F can be seen below.