The Keysight N9323C Basic Spectrum Analyzer is a general-purpose RF measurement instrument spanning 1 MHz to 13.6 GHz. It delivers rapid spectrum analysis with swept and FFT modes, supporting frequency spans from 0 Hz (zero span) to 13.6 GHz. Resolution bandwidth ranges from 10 Hz to 3 MHz in 1-3-10 sequence, with typical RBW accuracy of ±5%. The analyzer achieves a displayed average noise level of −144 dBm at 1 GHz, enabling sensitive measurements across demanding test scenarios.
Technical Specifications
Frequency Performance
• Frequency range: 1 MHz to 13.6 GHz
• Frequency span: 0 Hz to 13.6 GHz
• Frequency span accuracy: ±(0.22% × span + span/(sweep point −1))
• Sweep time: 2 ms to 1000 s (span >100 Hz)
• Resolution bandwidth: 10 Hz to 3 MHz in 1-3-10 sequence
• RBW accuracy: ±5% nominal
• Resolution filter shape factor: <5:1 nominal (60 dB/3 dB bandwidth ratio)
Amplitude and Dynamic Range
• DANL @ 1 GHz: −144 dBm typical
• Typical DANL: −154 dBm/Hz @ 1 GHz
• Maximum DANL: −162 dBm
• Measurement range (1 MHz–500 MHz): DANL to +10 dBm (preamp off)
• Measurement range (500 MHz–13.6 GHz): DANL to +20 dBm (preamp off)
• Absolute amplitude accuracy: ±0.3 dB at 50 MHz (typical)
• Overall amplitude accuracy: ±1.3 dB (1 MHz–7 GHz)
• Input attenuator: 0 to 50 dB in 5 dB steps
• Input attenuation switching uncertainty: ±0.2 dB typical (at 50 MHz)
• RBW switching uncertainty: +0.1 dB typical
• Third order intercept: +11 dBm to +15 dBm across bands
• Marker level readout resolution: 0.01 dB
Phase Noise
• Phase noise @ 1 GHz (10 kHz offset): −92 dBc/Hz
• Phase noise @ 500 MHz (10 kHz offset): −92 dBc/Hz
• Phase noise @ 1 MHz offset: −119 dBc/Hz
Input Protection and Triggering
• Maximum damage level: +30 dBm average continuous (input attenuator ≥20 dB)
• Maximum damage level: +33 dBm or ±50 VDC
• DC voltage maximum: ±50 VDC
• Trigger types: RF Burst, External, Video
• Level display units: dBm, dBmV, dBμV, W, V, and EMF variants
– Key Features
• Compact spectrum analysis from 1 MHz to 13.6 GHz
• Configurable resolution bandwidth and sweep parameters
• Multiple trigger modes for automated measurements
• Extensive amplitude display formats
• Input protection to ±50 VDC and +33 dBm continuous power
– Typical Applications
• EMI troubleshooting and compliance testing
• Spectrum monitoring and signal detection
• Radio link monitoring
• Wireless IoT device characterization
• Educational RF and microwave laboratories
– Compatibility & Integration
The N9323C accepts RF signals via standard connector with programmable attenuation, external triggering, and video trigger modes for flexible test automation.
