Agilent / Keysight E7401A EMC Analyzer, 9 kHz to 1.5 GHz

The Agilent/Keysight E7401A is a dedicated EMC analyzer that performs in-house EMI pre-compliance testing, diagnostics, and general-purpose spectrum analysis from 9 kHz to 1.5 GHz. Built for engineers developing products across IT, communications, automotive, medical, and industrial sectors, it delivers automated EMI measurements with minimal operator training and integrates with external components - broadband antennas, LISNs, and close-field probes - for radiated and conducted emissions characterization.

Technical Specifications

• Frequency Range: 9 kHz to 1.5 GHz


• Displayed Average Noise Level (DANL): -150 dBm


• Third Order Intercept (TOI): +12.5 dBm


• Second Harmonic Distortion (SHI): +45 dBm


• Resolution Bandwidth (RBW): 1 Hz to 3 MHz (-3 dB); 10 Hz to 3 MHz (-3 dB)


• Video Bandwidth (VBW): 30 Hz to 3 MHz in 1-3-10 steps


• EMI Bandwidths: 200 Hz, 9 kHz, 120 kHz, 1 MHz


• Detectors: Peak, quasi-peak, average


• Input Coupling: AC coupled (without Option UKB)


• Operating Temperature: 0 °C to +55 °C


• Amplitude Response: Conforms to CISPR Publication 16 Section 1, Clause 2 for quasi-peak response to CISPR pulse

Key Features

• Built-in preamplifier with 20 dB nominal gain


• Full spectrum analyzer functionality with log sweep support


• Automated, preprogrammed EMI measurements


• Dual limit line display with margin calculation


• Corrections for antennas, cables, and amplifiers


• Internal signal list storage up to 2000 signals


• Sorting, re-measuring, marking, and deletion functions


• Zone feature for targeted signal inspection within broad spectrum view


• Color display for clear signal visualization


• 3.5-inch disk drive for measurement data storage


• ~5 minute warm-up to operational status


• Automatic remeasure functions for consistency and repeatability

Interfaces

• GPIB and parallel ports for instrument control and data transfer

Typical Applications EMI pre-compliance assessment during product development, in-house diagnostics, emissions source localization, and spectrum analysis across consumer and industrial equipment design cycles.