The WR6.5-VNAX from Virginia Diodes, Inc. is a Vector Network Analyzer Extender with Extended Frequency 110 to 170 GHz, Input Power 9/20 dBm, Dynamic Range 110 to 120 dB, Directivity 30 dB, Operational Temperature 25 Degree C, ±5 Degree C. More details for WR6.5-VNAX can be seen below.