The Agilent/Keysight 8956A is a system interface that integrates multiple test and measurement instruments into a unified automated test platform. Operating from DC to 1000 MHz, it manages signal generators, RF measurement instruments, audio sources, audio measurement instruments, and DC power supplies through a single control point. Two RF test ports enable duplex testing, stimulus-response configurations, or sequential unit-under-test connections. Control connectors adjacent to each RF port provide access to all audio and power signals.
Technical Specifications
• Frequency Range: DC to 1000 MHz
• Audio Frequency Range: DC to 100 kHz
• RF Test Ports: 2 ports with switchable configuration
• Maximum Input Power to RF Ports:
– With 30 dB attenuator: 120 W CW
– Without 30 dB attenuator: 0.5 W CW
• VSWR: RF ports specified with 50 ohm terminations (values vary by attenuation setting)
– Key Features
• Integrates up to 3 signal generators and 3 RF measurement instruments
• Accommodates 2 audio sources and 2 audio measurement instruments
• Single DC power supply connection
• Duplex testing capability with dual RF ports
• Current drain and timing measurement functions
• Front panel keyboard for direct control of all switching operations
• Store/Recall functionality for saving and recalling front panel configurations
– Typical Applications
• Multi-instrument RF and audio test automation from DC to 1000 MHz
• Stimulus-response testing with integrated measurement feedback
• Sequential testing of multiple units under test
• Audio characterization combined with RF stimulus and power monitoring
– Compatibility & Integration
Designed for flexible system integration, the 8956A centralizes control of diverse instrument types—generators, analyzers, and audio equipment—enabling coherent multi-parameter test campaigns without external switching matrices.
