Agilent/Keysight E7404A

The Agilent/Keysight E7404A is a portable spectrum analyzer engineered for EMI precompliance testing across 9 kHz to 13.2 GHz. It delivers automatic EMI measurements, conducted and radiated emissions testing, and diagnostic isolation of interference sources—essential capabilities for product development and manufacturing validation. The instrument combines a built-in preamplifier with selectable resolution bandwidths (10 Hz to 3 MHz, -3 dB) and video bandwidth control (30 Hz to 3 MHz) to isolate emissions across complex signal environments. Support for log sweep functionality and integration with external components—LISN networks, absorbing clamps, broadband antennas, and close-field probes—positions the E7404A as a versatile precompliance platform. Optional enhancements include narrower resolution bandwidths down to 10 Hz (Option 1DR), a 3 GHz preamplifier (Option 1DS), high-stability frequency reference (Option 1D5), and EMI detectors with FM demodulation (Option AYQ). GPIB and Centronics interfaces are available via Option A4H. The rugged, portable design operates at 0 °C to +55 °C and requires a standard three-prong AC power connection with protective earth ground. Five-minute warm-up time and BenchLink Web Remote software compatibility enable efficient lab and field deployment.

– Technical Specifications

• Frequency Range: 9 kHz to 13.2 GHz
• Resolution Bandwidth: 10 Hz to 3 MHz (-3 dB); narrower bandwidths to 10 Hz via Option 1DR
• Video Bandwidth: 30 Hz to 3 MHz
• Preamplifier: Built-in; optional 3 GHz preamplifier (Option 1DS)
• Warm-up Time: 5 minutes
• Operating Temperature: 0 °C to +55 °C
• Power: AC input with required protective earth ground

– Key Features

• Automatic EMI measurements for precompliance validation
• Conducted emissions testing via LISN or absorbing clamp coupling
• Radiated emissions measurement with broadband antenna support
• Close-field diagnostics using compatible probes (11940A, 11941A)
• Log sweep capability
• Amplitude accuracy optimization via Presel Center function for signals above 2.85 GHz
• 3.5″ disk drive storage

– Typical Applications

• Product development EMI precompliance screening
• Manufacturing emissions verification
• Interference source isolation and diagnosis
• Harmonic and spurious emission identification

– Compatibility & Integration

• BenchLink Web Remote software support
• GPIB and Centronics interface (Option A4H)
• Memory expansion capability (Option B72)
• Optional tracking generator for enhanced measurement versatility