Agilent 11940A / 11941A Close-Field probe 30MHz-1GHz

Agilent 11940A / 11941A,”These close-field probes are specialized tools designed to identify and analyze electromagnetic interference (EMI) sources in circuit boards, components, and systems operating between 30 MHz and 1 GHz. The 11940A and 11941A are particularly useful for pre-compliance testing, allowing engineers to detect emissions early in the design cycle. Their compact design makes them ideal for probing small and densely packed circuits. Each probe features high sensitivity and excellent spatial resolution, enabling users to pinpoint radiating elements such as traces, vias, and components. They connect directly to spectrum analyzers or EMI receivers, providing real-time visualization of EMI levels. These tools help engineers evaluate shielding effectiveness, grounding strategies, and layout optimizations. Built with durable construction and ergonomic handling, the probes support both lab and field use. The included calibration and extension accessories ensure compatibility with different test environments. Their non-invasive design prevents interference with circuit operation during testing. Overall, these probes are indispensable for EMI diagnostics and root-cause analysis in product development, compliance preparation, and quality assurance. Their use reduces the risk of costly redesigns and accelerates time-to-market by identifying and resolving EMI issues before formal certification testing.”