The Keysight (Agilent) ESA Series of spectrum analyzers comprises highly versatile, portable test instruments offering a wide frequency coverage and configurable options for laboratory, manufacturing, and field environments. The series features ESA-E performance analyzers and ESA-L basic analyzers, including models such as E4401B, E4402B, E4404B, E4405B, and E4407B.

Specifications

General

ParameterValue
InterfacesGPIB, RS-232, Parallel (standard or option dependent)
Display6.6 in (168 mm) color TFT LCD

Physical

ParameterValue
Power Supply90 to 132 V AC (47 to 440 Hz), 195 to 250 V AC (47 to 66 Hz), maximum 260 W
Operating Temperature0 to +55 °C
Dimensions (W×H×D)373 mm × 222 mm × 409 mm
Weight12.0 kg to 17.1 kg (model and configuration dependent)

Frequency Specifications

ParameterValue
Frequency Range9 kHz to 1.5 GHz (E4401B / E4403B), 3.0 GHz (E4402B / E4408B), 6.7 GHz (E4404B), 13.2 GHz (E4405B), 26.5 GHz (E4407B)
Frequency Span Range0 Hz (zero span), 100 Hz to maximum frequency of model
Internal Reference Frequency Accuracy±2 × 10^-6 per year (standard), ±1 × 10^-7 per year (with Option 1D5)
Reference Frequency Temperature Stability±1 × 10^-6 (standard), ±1 × 10^-8 (with Option 1D5)
Phase Noise at 10 kHz Offset≤ -101 dBc/Hz (ESA-E, 1 GHz carrier), ≤ -90 dBc/Hz (ESA-L, 1 GHz carrier)
Phase Noise at 100 kHz Offset≤ -113 dBc/Hz (ESA-E, 1 GHz carrier), ≤ -105 dBc/Hz (ESA-L, 1 GHz carrier)
Phase Noise at 1 MHz Offset≤ -125 dBc/Hz (ESA-E, 1 GHz carrier), ≤ -115 dBc/Hz (ESA-L, 1 GHz carrier)

Bandwidth Specifications

ParameterValue
Resolution Bandwidth (RBW) Range10 Hz to 5 MHz (standard ESA-E), 1 Hz to 5 MHz (with Option 1DR on ESA-E), 1 kHz to 5 MHz (ESA-L)
RBW Steps1-3-10 sequence
Video Bandwidth (VBW) Range1 Hz to 5 MHz (ESA-E), 30 Hz to 3 MHz (ESA-L)

Amplitude Specifications

ParameterValue
Measurement RangeDisplayed average noise level (DANL) to +30 dBm
Maximum Safe Input Level (AC)+30 dBm (1 W)
Maximum Safe Input Level (DC)0 V (dc-coupled), 100 V (ac-coupled, E4401B and E4411B)
Input Attenuator Range0 to 75 dB in 5 dB steps
Displayed Average Noise Level (DANL) - Preamplifier Off-135 dBm (typical -141 dBm) at 1 GHz with 10 Hz RBW (ESA-E)
Displayed Average Noise Level (DANL) - Preamplifier On-150 dBm (typical -154 dBm) at 1 GHz with Option 1DS (ESA-E)
Absolute Amplitude Accuracy±0.54 dB at 50 MHz reference frequency (ESA-E)
Scale Fidelity±0.4 dB over 0 to -85 dB range (ESA-E with Option 1D5/1DR)

Sweep and Trigger

ParameterValue
Sweep Time Range (Span > 0 Hz)1 ms to 4000 s (ESA-E), 4 ms to 4000 s (ESA-L)
Sweep Time Range (Zero Span)1 µs to 4000 s (ESA-E), 4 ms to 4000 s (ESA-L)

Measurement Modes and Suites

ParameterValue
Standard Measurement FunctionsChannel Power, Adjacent Channel Power (ACP), Occupied Bandwidth (OBW), Harmonic Distortion, Spectrum Emission Mask

Inputs and Outputs

ParameterValue
RF Input Connector TypeType-N female (50 ohm) standard (APC 3.5 mm male standard on E4407B; Type-N female on E4407B with Option 0C6)
RF Input Impedance50 ohms (standard), 75 ohms (Option 1DP for E4401B / E4403B)
External Reference Input Frequency10 MHz
External Reference Output Frequency10 MHz

System and User Interface

ParameterValue
Display Resolution640 x 480 VGA
External Storage Support3.5-inch 1.44 MB DOS-format floppy disk drive
Command Language CompatibilitySCPI (Standard Commands for Programmable Instruments)

Physical and Power Specifications

ParameterValue
Line Frequency Range47 to 440 Hz (90 to 132 V AC), 47 to 66 Hz (195 to 250 V AC)
Warm-up Time5 minutes (for frequency reference stability), 45 minutes (for full accuracy specifications)
Weight (E4401B)12.0 kg
Weight (E4407B)17.1 kg

Environmental and Compliance

ParameterValue
Storage Temperature Range-40 °C to +75 °C
Recommended Calibration Cycle1 year

Available Options and Hardware Configurations

ParameterValue
Option 1D5High stability frequency reference (OCXO)
Option 1DRNarrow resolution bandwidths down to 1 Hz (ESA-E)
Option 1DS100 kHz to 3.0 GHz internal preamplifier
Option 1DN9 kHz to 1.5 GHz tracking generator (50 ohm)
Option 1DQ9 kHz to 3.0 GHz tracking generator (50 ohm)
Option 1DP75 ohm RF input impedance (E4401B / E4403B)
Option B72Expansion memory (16 MB SDRAM)
Option B7DDigital demodulation hardware
Option AYXFast digitizer

Environmental

ParameterValue
Operating AltitudeUp to 4,600 m
Non-Operating AltitudeUp to 15,240 m
Relative Humidity95% RH non-condensing (0 °C to 40 °C)
Environmental ComplianceMeets MIL-PRF-28800F Class 3

Options

ParameterValue
Option A4HGPIB and Parallel interfaces
Option 1D6Time-gated spectrum analysis
Option 226Phase Noise measurement personality
Option 219Noise Figure measurement personality
Option 228Distance-to-fault measurement personality
Option 1CPRackmount kit
Option 1A7ISO 17025 compliant calibration
Option UK6Commercial Calibration Certificate with Test Data
Option 1D750 to 75 Ohm Matching Pad
Option B7ERF Communications Hardware
Option 215External Source Control
Option 225Bluetooth Measurement Personality
Option 227Bluetooth Premium Measurement Personality
Option 229Modulation Analysis Measurement Personality
Option A5D12 VDC Power Cable
Option 1AXRS-232 and Parallel Interface

Receiver & Dynamic Range

ParameterValue
1 dB Gain Compression0 dBm @ >= 10 MHz (at input mixer)
Third-Order Intermodulation (TOI)+11 dBm (typical, 100 MHz to 3.0 GHz, E4402B/E4407B)
Second Harmonic Distortion (SHI)+40 dBm (typical, 10 MHz to 1.5 GHz, E4402B/E4407B)

Sweep & Traces

ParameterValue
Trace DetectorsPeak, Negative Peak, Sample, RMS, Average, Quasi-Peak (option dependent)
Number of Sweep Points401
Log Display Scale0.1 to 20 dB/division
Linear Display Scale10 divisions
Amplitude UnitsdBm, dBmV, dBµV, V, W, A

Technology

Superheterodyne Spectrum Analyzer

Applications

RF and Microwave Spectrum Analysis