Keysight (Agilent/HP) 11691D

Frequency range 2-18 GHz, coupling nominal 22 dB, directivity better than 30 dB (2-8 GHz) and better than 26 dB (8-18 GHz), maximum permissible power 50 W continuous or 250 W pulse, connectors APC-7 or N standard (AUX), impedance 50 Ohm. DIRECTIONAL COUPLER 2 - 18 GHz