The Agilent/Keysight N9320B is a portable RF spectrum analyzer operating from 9 kHz to 3 GHz, delivering signal analysis and measurement capabilities across a broad spectrum. Built for R&D, manufacturing, field service, and educational environments, it combines essential performance with optional upgrades for specialized testing. The instrument supports real-time signal monitoring, component characterization, and EMI pre-compliance assessment.
Technical Specifications
Frequency and Resolution
• Frequency range: 9 kHz to 3 GHz
• Resolution bandwidth: 10 Hz to 1 MHz in 1-3-10 steps
• Optional CISPR EMI filters: 200 Hz, 9 kHz, 120 kHz, and 1 MHz RBW
• Frequency counter resolution: 0.1 Hz
Amplitude Performance
• Displayed average noise level: −148 dBm (pre-amplifier on) / −130 dBm (pre-amplifier off)
• Amplitude accuracy: ±1.5 dB (overall), typical ±0.5 dB
• Phase noise: <−88 dBc/Hz at 10 kHz offset, <−100 dBc/Hz at 100 kHz offset, 0 Hz) or 6 µs to 1000 s (span = 0 Hz)
• Continuous and single sweep modes
• Triggering: free run, video, or external with selectable edge polarity and up to 80% sweep time delay
– Key Features
• Power measurement suite: Channel Power, Adjacent Channel Power, Occupied Bandwidth, Spectrum Emission Mask, and Third Order Intercept
• Up to four independent traces and 12 markers (including delta markers)
• Two customer-definable limit lines
• USB power sensor support (Keysight U2000 series)
• Optional modulation analysis: AM/FM demodulation (Option AMA) or ASK/FSK demodulation with eye diagram (Option DMA)
• Optional tracking generator (TG3): 100 kHz to 3.0 GHz for scalar network analysis
• Optional CISPR EMI filters (Option EMF) for standards-based compliance testing
– Typical Applications
• Signal monitoring and spectral characterization
• Component and device testing
• EMI pre-compliance assessment per CISPR standards
• Modulation analysis and demodulation metrics
• Network scalar measurements with tracking generator
– Compatibility & Integration
The N9320B integrates with Keysight U2000 series USB power sensors for external power measurement capabilities.


















