The Keysight 11525A is a general purpose grade, APC-7 to type-N male adapter.
APC-7 (7 mm) connector: The APC-7 (Amphenol Precision Connector-7 mm) offers the lowest reflection coefficient and most repeatable measurement of all 18 GHz connectors. Development of the connector was a joint effort between HP and Amphenol, which began in the 1960s. This is a sexless design and is the preferred connector for the most demanding applications, notably metrology and calibration.
Key Features & Specifications:
- Connector Type: APC-7, Type N (m)
- Frequency Range: dc - 18 GHz
Superior RF Performance
- Return Loss: 30 dB maximum