Agilent/Keysight E7401A

The Agilent/Keysight E7401A is an EMC analyzer designed for pre-compliance testing of electromagnetic interference across the 9 kHz to 1.5 GHz spectrum. This instrument delivers full spectrum analyzer functionality paired with automated EMI measurement capabilities, making it ideal for in-house product development and radiated emissions evaluation. The E7401A accommodates broadband antennas for radiated emissions testing and integrates with line impedance stabilization networks (LISN) or absorbing clamps for conducted emissions analysis on power and data lines. Close field probes enable isolation and diagnosis of emission sources during troubleshooting.

– Technical Specifications

Frequency Performance
• Operating range: 9 kHz to 1.5 GHz
• Pre-amplifier range: 100 kHz to 1.5 GHz
• Resolution Bandwidth (RBW): 1 Hz to 3 MHz (−3 dB)
• Narrow RBW option (1DR) available; selectable settings at 1 Hz, 10 Hz, 1 kHz, and 3 MHz
• EMI Bandwidths: 200 Hz, 9 kHz, 120 kHz, 1 MHz

Amplitude Measurement
• Displayed Average Noise Level (DANL): ≤ −150 dBm
• Third Order Intercept (TOI): +12.5 dBm
• Second Harmonic Distortion (SHI): +45 dBm
• Marker Level to DANL: > 25 dB (Span ≤ 1.5 GHz, RBW/Span ≥ 0.002)
• Detection modes: Peak, quasi-peak, and average

Frequency Stability
• Reference aging: ±1 × 10⁻⁷/year
• Temperature stability: ±1 × 10⁻⁸
• Warm-up time: 5 minutes
• Operating temperature: 0 °C to +55 °C

– Key Features

• Built-in preamplifier with 20 dB nominal gain
• Automatic and preprogrammed EMI measurements
• Peak, quasi-peak, and average amplitude measurement of up to 2000 signals with internal storage
• Dual limit line display with margin calculation
• Zone feature for signal magnification
• Antenna, cable, and amplifier correction
• Signal list management (sort, remeasure, mark, delete)
• 3.5-inch disk drive storage
• Color display output

– Optional Features

• Option 1DS: RF Preamp (Standard)
• Option 1D5: High-Stability Frequency Reference
• Option 1DN: 3 GHz Tracking Generator
• Option 1D6: Time-Gated Spectrum Analysis
• Option 060: Low Emissions Shielding
• Option AYQ: EMI Detect

– Compatibility & Integration

• SCPI programming and IVI COM driver support
• E7415A EMI software compatible
• BenchLink Web Remote software compatible
• Standard GPIB and parallel ports
• Optional serial port and IF/Sweep port configurations