HP-Agilent/Keysight 85027A

The 85027A Directional Bridge is designed to operate with either the 8757 Network Analyzer in ac or dc detection modes or with the 8756 Network Analyzer or 8755 Analyzer Plug-in in ac detection mode. This bridge offers high directivity, excellent test port match, and a measurement range of 10MHz to 18GHz in coax. The unit has a nominal impedance of 50-ohms and uses a Type-N (female) input connector and a 7 mm connector at the test port.