The UHPA Series from Narda-ATM is a Waveguide to Coax Adapter with Frequency 2.6 to 18 GHz, Power 850 to 2000 W, Peak Power 6 kW, Insertion Loss 0.08 to 0.16 dB, Operating Temperature -40 to 85 Degree C. More details for UHPA Series can be seen below.