The Agilent E4411B ESA-L Series Spectrum Analyzer is a portable instrument for signal analysis from 9 kHz to 1.5 GHz, delivering essential measurement functions across EMC testing, RF troubleshooting, and communication system diagnostics in laboratory and field environments. Built with a phase-constant synthesizer, the analyzer provides enhanced frequency measurement stability and repeatability. Automatic background equalization extends calibration intervals. Guaranteed accuracy is achieved within five minutes of warm-up.
Technical Specifications
Frequency Performance
• Frequency range: 9 kHz to 1.5 GHz
• Frequency reference aging rate: ±2×10⁻⁶/year, ±1.0×10⁻⁷/day
• Frequency readout accuracy (start, stop, center, marker): ±(frequency readout × frequency reference error)
• Marker frequency counter accuracy: ±(marker frequency × frequency reference error)
• Frequency span: 0 Hz (zero span) to maximum range
Amplitude Measurements
• Input level range: −130 dBm to +30 dBm
• Absolute level measurement error: ±1.1 dB
• Displayed average noise level (DANL): −166 dBm
• Third-order intermodulation distortion (TOI): +7.5 dBm, +16 dBm
Resolution & Video Bandwidths
• Resolution bandwidth (RBW): 1 Hz to 3 MHz in 1-3-10 sequence; extended to 8 MHz
• Narrow RBW (Option 1DR): 100 Hz minimum on ESA-L Series
• Video bandwidth (VBW): 30 Hz to 1 MHz in 1-3-10 sequence; extended to 3 MHz
Sweep & Detection
• RF sweep time: Approximately 4 ms
• Sweep time range: 4 ms to 4000 sec
• Measurement update rate: ≥28 updates/sec (display), ≥30 updates/sec (GPIB)
Phase Noise
• Phase noise (10 kHz offset at 1 GHz): ≤−90 dBc/Hz
• Phase noise measurements below 10 kHz offset require Option 1DR
– Key Features
• Built-in frequency counter with 1 Hz resolution
• Optional synthesized tracking generator (eliminates tracking drift)
• Warm-up time to guaranteed accuracy: 5 minutes
– Typical Applications
• EMC testing and compliance verification
• RF circuit troubleshooting and diagnostics
• Communication system signal analysis
• Laboratory and field measurements
– Compatibility & Integration
GPIB interface supports automated measurement routines and remote control with update rates ≥30 updates/sec.


















