Agilent / Keysight E4445A 13.2GHz PSA Spectrum Analyzer

The Agilent/Keysight E4445A PSA Spectrum Analyzer delivers RF and microwave signal analysis from 3 Hz to 13.2 GHz. Built on modern instrument architecture, it combines an all-digital IF section with automatic internal alignment and highly accurate frequency reference stability. The analyzer excels in research, manufacturing, and field service environments where measurement speed and dynamic range are critical.

Technical Specifications

• Frequency range: 3 Hz to 13.2 GHz (DC coupled); 20 MHz to 13.2 GHz (AC coupled)


• Frequency reference accuracy: ± 7 × 10⁻⁸ (initial calibration)


• Aging rate: ± 1 × 10⁻⁷ per year


• Temperature stability: ± 1 × 10⁻⁸ (20–30 °C); ± 5 × 10⁻⁸ (0–55 °C)


• Marker frequency counter accuracy: ± (marker frequency × frequency reference accuracy + 0.100 Hz)


• Counter resolution: 0.001 Hz


• Frequency span range: 0 Hz to 13.2 GHz


• Frequency span resolution: 2 Hz Resolution and Bandwidth


• Analysis bandwidth: 10 MHz standard; 40 MHz or 80 MHz optional


• Resolution bandwidth (RBW): 1 Hz to 3 MHz in 10% steps; 4, 5, 6, 8 MHz (160 settings total)


• RBW bandwidth accuracy: ±0.5% (±0.022 dB) at 1 Hz–51 kHz; ±1.0% (±0.044 dB) at 56–100 kHz; ±1.5% (±0.066 dB) at 270 kHz–1.1 MHz (<3 GHz CF)


• Selectivity (–60 dB/–3 dB): 4.1:1 nominal


• EMI bandwidths: 200 Hz, 9 kHz, 120 kHz, 1 MHz (CISPR); 10 Hz, 100 Hz, 1 kHz, 10 kHz, 100 kHz, 1 MHz (MIL STD 461E) Amplitude and Dynamic Performance


• Displayed average noise level (DANL): –155 dBm


• Third order intercept (TOI): +19 dBm


• Third order intermodulation: –78 dB nominal (40 or 80 MHz analysis bandwidth)


• Absolute amplitude accuracy: ±0.19 dB


• W-CDMA ACLR dynamic range: 81 dB


• Phase noise: –118 dBc/Hz at 10 kHz offset

Key Features

• All-digital IF with auto-ranging capability


• Multiple detector modes for accurate measurement across signal types


• 160 resolution bandwidth settings enable precise signal isolation


• Gated sweep capability from 10 μs to 500 ms


• Compliance with CISPR and MIL STD 461E EMI bandwidth standards

Typical Applications

• RF and microwave component characterization


• EMI/RFI measurements and compliance testing


• Phase noise and spectral purity analysis


• Intermodulation and harmonic distortion measurement


• Signal monitoring in field service and manufacturing environments