Agilent / Keysight E4404B 6.7 GHz ESA-E Spectrum Analyzer

The Agilent/Keysight E4404B is a 6.7 GHz spectrum analyzer engineered for signal analysis, RF component characterization, and wireless communication system testing. Operating from 9 kHz to 6.7 GHz, it delivers a typical DANL of -160 dBm at 1 GHz and amplitude accuracy of ±1 dB across dynamic range measurements. The instrument provides resolution bandwidths from 1 Hz to 3 MHz and video bandwidths from 0.1 Hz to 1 MHz, each with ±5% accuracy. Phase noise performance reaches -100 dBc/Hz typical at 1 GHz with 10 kHz offset.

– Technical Specifications

• Frequency range: 9 kHz to 6.7 GHz
• Resolution bandwidth: 1 Hz to 3 MHz (±5% accuracy)
• Video bandwidth: 0.1 Hz to 1 MHz (±5% accuracy)
• Display average noise level (DANL) at 1 GHz: -160 dBm typical
• Third-order intercept (TOI) at 1 GHz: +13 dBm typical
• Amplitude accuracy: ±1 dB
• Logarithmic display: 0.01 dB/div to 200 dB/div
• Frequency accuracy: ±1 ppm with 10 MHz reference
• Sweep time: 10 ms to 500 s
• Phase noise: -100 dBc/Hz typical (1 GHz, 10 kHz offset)
• Power consumption: 150 VA typical (100-240 VAC, 50/60 Hz)
• Warm-up time: 5 minutes (initial), 30 minutes (full accuracy)
• RF input: Type N connector, 50 Ohm
• External reference: BNC, 1 M Ohm
• Dimensions: 177 mm H × 426 mm W × 485 mm D
• Weight: 16.7 kg
• Display: Color LCD

– Key Features

• Built-in measurement functions including channel power, adjacent channel power (ACP), occupied bandwidth, harmonic distortion, and AM/FM demodulation
• Amplitude display in dBm, dBW, W, V, mV, and dBmV
• GPIB (IEEE-488.2) and optional LAN (Ethernet) interfaces for remote control and data transfer
• Optional tracking generator for swept frequency measurements

– Typical Applications

• Wireless communication system testing and troubleshooting
• RF component characterization and signal quality evaluation
• Laboratory and field-based spectrum measurement

– Compatibility & Integration

The E4404B integrates with Agilent/Keysight VSA (Vector Signal Analysis) software and third-party analysis tools via standard GPIB, Ethernet, and USB interfaces. It maintains compatibility across the ESA series analyzer ecosystem.