The 213BY from ACST GmbH is a Frequency Multiplier with Input Frequency 76.66 to 86.66 GHz, Output Frequency 230 to 260 GHz, Input Power 300 to 1200 mW, Output Power 23.01 dBm, Frequnecy 76.66 to 86.66 GHz. Tags: Waveguide, Waveguide Multiplier. More details for 213BY can be seen below.