The Agilent/Keysight E4448A PSA Spectrum Analyzer delivers high-performance RF and microwave signal analysis from 3 Hz to 50 GHz. This instrument combines traditional spectrum measurements with advanced vector signal analysis capabilities, integrating a fully digital IF section, highly accurate internal reference, and automatic internal alignment to achieve exceptional measurement accuracy. The E4448A serves radar, satellite communications, and advanced wireless system characterization in both laboratory and production environments.
Technical Specifications
Frequency Coverage
• Frequency range: 3 Hz to 50 GHz
• Frequency reference aging rate: ±1 × 10⁻⁷/year
• Temperature stability (20–30 °C): ±1 × 10⁻⁸
• Temperature stability (0–55 °C): ±5 × 10⁻⁸
• Initial calibration accuracy: ±7 × 10⁻⁸
• Counter resolution: 0.001 Hz
• Frequency span range: 0 Hz (zero span) to 50 GHz; 10 Hz minimum in swept mode
• Frequency span resolution: 2 Hz
• External mixing extends coverage to 110 GHz (with Agilent external mixers) and 325 GHz (with compatible third-party mixers)
Resolution & Analysis Bandwidth
• Resolution bandwidth (RBW) range: 1 Hz to 3 MHz (10% steps), plus 4, 5, 6, 8 MHz
• RBW accuracy (1 Hz–51 kHz): ±0.5% (±0.022 dB)
• RBW accuracy (56–100 kHz): ±1.0% (±0.044 dB)
• RBW accuracy (110–240 kHz): ±0.5% (±0.022 dB)
• RBW accuracy (270 kHz–1.1 MHz, 2.85 GHz): 200 MHz nominal
• IF output bandwidth (70 MHz IF): -1 dB: 20–30 MHz nominal; -3 dB: 30–60 MHz nominal
– Key Features
• Fully digital IF architecture with automatic internal alignment
• Frequency counter resolution to 0.001 Hz with delta counter capability
• Configurable resolution and video bandwidth for signal optimization
• Multiple IF output options for external measurement integration
– Typical Applications
• Radar signal characterization and analysis
• Satellite communication system testing
• Advanced wireless system development and validation
• Spectral purity and signal integrity measurements in production environments
