Agilent / Keysight E7405A 26.5GHz EMC Spectrum Analyzer

The Agilent/Keysight E7405A is a portable EMC spectrum analyzer for in-house EMI precompliance testing, radiated and conducted emissions analysis, and signal diagnostics across 9 kHz to 26.5 GHz. Built-in preamplifier (20 dB gain, 1 MHz to 3 GHz), automated EMI measurements with peak/quasi-peak/average detection, and multi-band architecture enable efficient signal characterization for compliance validation.

Technical Specifications

Frequency Coverage: 9 kHz to 26.5 GHz (Band 0–4). Optional lower-frequency extension (Option UKB) extends Band 0 to 30 Hz DC coupled or 100 MHz AC coupled, with upper limit 3.6 GHz. Performance Metrics

• Displayed Average Noise Level (DANL): ≤ −150 dBm


• Third Order Intercept (TOI): +12.5 dBm


• Second Harmonic Distortion (SHD): +45 dBm


• Resolution Bandwidth: 1 Hz to 3 MHz (−3 dB) in 1-3-10 sequence


• EMI Bandwidths: 200 Hz, 9 kHz, 120 kHz, 1 MHz; extended range 1 Hz to 5 MHz available


• Video Bandwidth: 1 Hz to 5 MHz typical Built-in Preamplifier: 20 dB nominal gain, operational 1 MHz to 3 GHz.

Key Features

• Automatic EMI measurements with correction for antennas, cables, and amplifiers


• Peak, quasi-peak, and average detectors


• Signal storage capacity: up to 2000 signals with multi-detector amplitude data


• Zone feature for signal magnification and detailed analysis


• Log sweep and time-gated sweep (Option 1D6)


• Color display with 3.5-inch built-in disk drive


• Portable design: 17.1 kg, 416 mm H × 222 mm W × 409 mm D

Interfaces & Power

• Standard: GPIB and parallel ports


• Optional: RS-232, Centronics (Option 1AX); GPIB/parallel alternative (Option A4H)


• Input voltage: 12–20 V DC with AC power cord


• Operating temperature: 0 °C to 55 °C

Compatibility & Integration Supports Agilent E7415A EMI software, BenchLink Web Remote, SCPI programming, and IVI COM drivers. Optional features include high-stability time base (Option 1D5) and tracking generator to 3 GHz (Option 1DN).