The Agilent/Keysight N9340B is a portable handheld RF spectrum analyzer delivering field-capable signal analysis from 100 kHz to 3 GHz. Built for demanding environments, this instrument combines rugged construction with a 6.5-inch color display to support real-time spectrum monitoring, signal identification, and communication system validation. The N9340B achieves -124 dBm displayed average noise level (DANL) with 30 Hz resolution bandwidth, or -144 dBm with the optional PA3 preamplifier, enabling detection of weak signals across a broad frequency span.
Technical Specifications
• Frequency Range: 100 kHz to 3 GHz (tunable down to 9 kHz)
• DANL: -124 dBm (RBW = 30 Hz, 10 MHz < fc ≤ 1.5 GHz); -144 dBm with PA3 option
• Amplitude Accuracy: ±1.5 dB
• Resolution Bandwidth: 30 Hz to 1 MHz (1-3-10 sequence)
• Video Bandwidth: 3 Hz to 1 MHz
• Sweep Time: < 0.1 seconds full span; 10 ms to 1000 s variable
• Phase Noise: < –87 dBc/Hz at 30 kHz offset
• Input Attenuator: 0 to 51 dB, 1 dB steps
• Display: 6.5-inch TFT color LCD, 640 × 480 pixels, auto-brightness, backlit keys
• Power Consumption: 13 W typical; accepts 90–263 VAC (50–60 Hz) or 12–18 VDC
– Key Features
• Adjacent Channel Power Ratio (ACPR) and Spectrum Emission Mask (SEM) measurements
• Field strength measurements with user-definable antenna factors
• Spectrogram display for signal monitoring over time
• Pass/Fail testing with custom masks
• Optional tracking generator (TG3): 5 MHz to 3 GHz, -25 to 0 dBm output
• Optional 20 dB preamplifier (PA3): 1 MHz to 3 GHz
• Optional demodulation analysis (AMA/DMA): AM/FM and ASK/FSK
• Optional IBOC measurement (IBC) for HD Radio
• Optional xDSL measurement (XDM) for ADSL/VDSL networks
• Unattended monitoring and signal capture for intermittent events (INM option)
• USB 2.0, LAN (10 Base-T), and external trigger/reference connectivity
– Typical Applications
Field testing and spectrum monitoring for wireless communications, EMI/RMI troubleshooting, signal compliance verification, and network performance analysis.
– Compatibility & Integration
Remote control via LAN (SCPI), USB host for data storage, and headphone output for audio demodulation monitoring.
