Keysight N9937D Signal Analyzer, 18GHz

Overview

The Keysight N9937D is an 18 GHz handheld signal analyzer designed for field maintenance, lab troubleshooting, and advanced RF signal analysis. It features gap-free real-time spectrum analysis with up to 120 MHz bandwidth, making it ideal for interference hunting and dynamic signal detection. The instrument is rugged, weatherproof, and weighs only 3.6 kg (8 lb), enabling technicians to deploy comprehensive testing capabilities in the field.

Key Features

• Frequency range: 9 kHz to 18 GHz with 120 MHz real-time analysis bandwidth
• Gap-free spectrum capture for accurate detection without missing transient signals
• Spectrum analyzer accuracy: ±0.1 dB without instrument warm-up
• IQ streaming bandwidth up to 120 MHz for wideband signal capture and post-capture replay
• Over 20 configurable software-defined applications via license-key activation
• Field-swappable battery with 4-hour runtime
• Touchscreen interface for intuitive operation and file management
• MIL-spec rugged design with three-year standard warranty

Applications

• Spectrum analysis and monitoring across 9 kHz to 18 GHz
• Interference source location and identification
• LTE and 5G NR field testing and over-the-air measurements
• Pulse measurements and time-gated analysis
• RF power measurements with USB external power sensors
• Real-time signal capture and spectral mapping