Agilent / Keysight E7403A EMC Analyzer, 30 Hz to 6.7 GHz

The Agilent/Keysight E7403A is a portable EMC analyzer engineered for electromagnetic compatibility testing across 30 Hz to 6.7 GHz. It delivers pre-compliance EMI testing, radiated and conducted emissions measurement, and full spectrum analysis with peak, quasi-peak, and average detection modes. The instrument stores up to 2000 signals with amplitude data, displays dual limit lines with margins, and applies corrections for antennas, cables, and amplifiers.

A built-in 20 dB preamplifier extends low-level measurement capability, while optional tracking generator support (up to 3 GHz) enables stimulus-response analysis.

Technical Specifications

• Frequency Range: 30 Hz to 6.7 GHz


• Resolution Bandwidth: 10 Hz to 3 MHz (−3 dB); 1 Hz and 3 Hz RBW available with preamplifier enabled; 1 Hz to 300 Hz available in spans ≤ 5 MHz


• Video Bandwidth: 30 Hz to 3 MHz


• Input Impedance: 50 Ω


• Input Coupling: AC coupling (100 kHz to 6.7 GHz); DC coupling (9 kHz to 6.7 GHz)


• Measurement Detectors: Peak, quasi-peak, and average


• Signal Storage Capacity: Up to 2000 signals with peak, quasi-peak, and average amplitudes


• Preamplifier: Built-in with nominal 20 dB gain


• Display Scale (Log): 0.1, 0.2, 0.5 dB/division and 1 to 20 dB/division in 1 dB steps; ten divisions displayed


• Display Scale (Linear): Ten divisions; amplitude in dBm, dBmV, dBµV, dBµA, Amps, Volts, or Watts


• Marker Resolution: Log scale 0 to −85 dB at 0.04 dB; linear scale 0.01% of reference level


• Warm-up Time: 5 minutes


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


• Storage: Built-in 3.5-inch disk drive

Key Features

• Large, crisp color display for waveform visualization


• Logarithmic sweep functionality for efficient frequency coverage


• Dual limit line display with margin calculation


• Automated, preprogrammed measurement sequences


• Preselector center and adjustment functions


• Standard GPIB and parallel port interfaces

Typical Applications

• Pre-compliance EMI testing


• Radiated emissions characterization


• Conducted emissions measurement


• System diagnostics and problem isolation


• Full spectrum analysis across microwave bands

Compatibility & Integration

• Compatible with BenchLink Web Remote software


• Optional tracking generator available up to 3 GHz