The 137WECAS_AP from A-Info is a Waveguide to Coax Adapter with Frequency 5.85 to 8.20 GHz, Power 50 W, Peak Power 3 kW, Insertion Loss 0.18 to 0.20 dB, Operating Temperature -55 to 85 Degree C. Tags: Endlaunch. More details for 137WECAS_AP can be seen below.