Featured EMC Product: Keysight N9935B FieldFox Handheld Network Analyzer

DeltaFaraday
Dec 3, 2025
2 min read

When accuracy and portability are equally critical, the Keysight N9935B FieldFox Handheld Network Analyzer delivers laboratory-grade performance in a rugged, field-ready design. Engineered for demanding RF and microwave measurement applications, the N9935B combines the power of a vector network analyzer (VNA) with spectrum analysis, cable and antenna testing, and full two-port S-parameter measurement—all in one compact instrument.

Built by Keysight Technologies—a global leader in RF, microwave, and EMC testing solutions—the FieldFox series provides unmatched precision and reliability for EMC engineers, telecom field technicians, and defense system integrators who require dependable results in real-world environments. With frequency coverage up to 9 GHz, the N9935B ensures seamless performance across the full range of network analysis, antenna verification, and cable fault diagnostics.

As an authorized sales channel, DeltaFaraday proudly supplies Keysight Technologies instruments alongside other industry-leading manufacturers such as Schwarzbeck Mess-Elektronik, Wavecontrol, COM-Power, Vectawave, and HILO-Test GmbH—offering a full portfolio of EMC testing equipment and RF measurement solutions.

Key Advantages of the Keysight N9935B FieldFox

All-in-One Functionality: Combines VNA, spectrum analyzer, and cable/antenna tester in one portable unit.
Field-Tough Design: Rated for harsh environments and extreme temperatures.
High-Frequency Coverage: Measures from 30 kHz to 9 GHz with exceptional dynamic range.
Lab-Quality Accuracy: Trusted by engineers worldwide for calibration-grade measurement performance.

Whether you’re testing antennas in the field, verifying EMC site performance, or troubleshooting RF systems, the Keysight N9935B FieldFox Handheld Network Analyzer provides the precision and portability needed to keep your measurements on point. Contact DeltaFaraday today to learn how Keysight’s FieldFox platform can strengthen your RF and EMC testing capabilities.

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