The AT-AM6-7181-26 from AT Microwave is a Frequency Multiplier with Output Frequency 71 to 81 GHz, Input Power 5 to 10 dBm, Output Power 26 dBm, Sub-Harmonic Suppression -20 dBc, Frequnecy 11.8 to 13.5 GHz. Tags: Waveguide, Module with Connectors, Waveguide Multiplier. More details for AT-AM6-7181-26 can be seen below.