The Keysight 11525A is a coaxial adapter that bridges APC-7 and Type-N (male) connectors, delivering precision RF connectivity for high-frequency test systems. Operating from DC to 18 GHz, this adapter is engineered for measurement repeatability and low signal reflection in metrology and calibration environments. The sexless APC-7 design ensures consistent mating performance across repeated connections, while the 30 dB maximum return loss specification maintains signal integrity across the full frequency range.
Technical Specifications
• Frequency Range: DC to 18 GHz
• Return Loss: 30 dB maximum
• Impedance: 50 Ohms
• Connector Interfaces:
– APC-7 (Amphenol Precision Connector – 7 mm)
– Type-N (male)
• Weight: 0.29 kg
– Key Features
• Sexless APC-7 connector design minimizes reflection coefficient and enhances repeatability
• 30 dB return loss specification supports demanding measurement requirements
• 50 Ohm impedance matching across DC to 18 GHz bandwidth
• Precision-grade construction suitable for calibration standards and reference systems
– Typical Applications
• High-frequency measurement and calibration setups requiring low-reflection interfaces
• Vector network analyzer (VNA) system integration
• Precision RF test configurations with APC-7 instrumentation ports
• Metrology systems where connector repeatability and low VSWR are critical
– Compatibility & Integration
The 11525A interfaces directly between test equipment and components featuring APC-7 connectors and Type-N male ports. Its design targets systems where measurement accuracy and connector reliability are primary performance drivers. The adapter supports the full frequency range of legacy and modern HP/Keysight measurement instruments configured with APC-7 reference ports.
