Agilent / Keysight E4411A 1.5GHz ESA-L Portable Spectrum Analyzer

The Keysight E4411A ESA-L is a portable spectrum analyzer delivering RF and microwave signal analysis from 9 kHz to 1.5 GHz. Designed for field deployment, this lightweight, rugged instrument combines a 5 ms sweep time with a display update rate of 28 updates/sec for rapid signal observation. The phase-locked synthesizer ensures frequency accuracy of ±2.0 kHz at 1 GHz and amplitude accuracy of ±1.1 dB across a dynamic range of -120 dBm to +30 dBm.

Technical Specifications

• Frequency Range: 9 kHz to 1.5 GHz; 1 MHz to 1.5 GHz with Option 1DP (75 Ohm Input)


• Amplitude Range: -120 dBm to +30 dBm with 85 dB log range


• Frequency Accuracy: ±2.0 kHz at 1 GHz (without temperature compensation)


• Amplitude Accuracy: ±1.1 dB; Span Accuracy ±1%


• Phase Noise: ≤-90 dBc/Hz at 10 kHz offset


• Residual FM: ≤150 Hz peak-to-peak at 100 Hz RBW, 100 Hz VBW


• Sweep Time: 5 ms (4 ms RF sweep)


• Resolution Bandwidth: 1 kHz to 3 MHz standard; 1 Hz to 8 MHz with Option 1DR


• Video Bandwidth: 30 Hz to 3 MHz standard; 1 Hz to 8 MHz with Option 1DR


• Dynamic Range: ≥78 dB (2nd order) / ≥85 dB (3rd order)


• Warm-up Time: 5 minutes to specified performance

Key Features

• Sealed front panel with louvered air vents and side-mounted fan for varied environmental operation


• Automatic background alignment maintains calibration without manual intervention


• Automatic input overload protection prevents component damage


• 8 MB RAM with 2 MB available disk space; 486-25 MHz processor


• Virtual real-time display with ≥28 updates/sec refresh rate

Typical Applications Field troubleshooting and signal analysis in RF/microwave systems; EMI/RFI testing with optional resolution bandwidths; signal monitoring in portable test scenarios.

Compatibility & Integration

• HP-IB interface (Option A4H)


• RS-232 interface (Option 1AX)


• Parallel (Centronics) interfaces via Options A4H or 1AX


• Optional 75 Ohm input (Option 1DP) and tracking generator (Option 1DQ) available