The Agilent/Keysight E7404A EMC Analyzer is a spectrum analyzer engineered for electromagnetic compatibility testing across 30 Hz to 13.2 GHz. It delivers peak, quasi-peak, and average detections for pre-compliance EMI measurements in development and manufacturing environments. The instrument supports radiated emissions testing with broadband antennas, conducted emissions via LISN, and near-field diagnostics using close field probes.
– Technical Specifications
Frequency Coverage
• 9 kHz to 13.2 GHz (30 Hz lower limit available for DC-coupled measurements)
Resolution & Accuracy
• Resolution Bandwidth (RBW): 1 Hz to 3 MHz (−3 dB); 1 Hz to 300 Hz available in spans ≤ 5 MHz
• Frequency Readout Accuracy: ±(frequency indication × frequency reference error + span accuracy + 15% of RBW + 10 Hz) + 1 Hz × N³
• Frequency Reference Stability: ±1 × 10⁻⁸ (temperature); ±1 × 10⁻⁸ (settability); ±1 × 10⁻⁷/year (aging)
Signal Detection
• Peak, quasi-peak, and average detectors
• Internal preamplifier with 20 dB nominal gain
– Key Features
• Full spectrum analyzer functionality with frequency, amplitude, modulation, and distortion measurements
• Preprogrammed automated EMI measurements
• Dual limit line display with margin tracking
• Signal storage capacity: up to 2000 signals in internal list
• Zone feature for simultaneous broad spectrum and magnified signal viewing
• Corrections applied for antennas, cables, and amplifiers
• Color display with large viewing area
• Automatic alignment routines at power-on; manual “Align Now RF” available every 24 hours
• 5-minute warm-up period
• Built-in 3.5″ disk drive
• Optional tracking generator available
– Typical Applications
• Pre-compliance EMI testing during product development
• Radiated and conducted emissions measurement
• Near-field troubleshooting with diagnostic probes
• Signal analysis and frequency characterization
• Manufacturing quality assurance and problem isolation
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