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Keysight N9927A FieldFox Handheld Microwave Vector Network Analyzer – 18 GHz
The Keysight N9927A FieldFox is a rugged, portable, full two-port vector network analyzer designed for field engineers who require high-performance RF testing in tough environments. With frequency coverage up to 18 GHz and a wide dynamic range of up to 95 dB, the N9927A supports simultaneous four S-parameter measurements with just one connection—enabling fast, efficient troubleshooting and verification.
This compact device integrates multiple tools into one 3.0 kg (6.6 lb.) unit: vector network analyzer (VNA), cable and antenna tester, distance-to-fault (DTF) analyzer, vector voltmeter, and USB-compatible power meter. Field calibration is simplified with QuickCal, Unknown Thru, and TRL calibration support—ensuring accuracy without returning to the lab.
Whether you’re doing antenna maintenance, microwave link verification, or cable testing, the N9927A gives you lab-grade performance in a field-ready format.
Key Features:
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Full 2-port VNA up to 18 GHz
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Simultaneous 4 S-parameter measurements
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Wide 95 dB dynamic range
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Built-in cable/antenna tester, DTF, and vector voltmeter
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QuickCal, Unknown Thru, and TRL field calibration
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USB power sensor support for average and pulse power
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Lightweight: only 3.0 kg (6.6 lb)
What’s Included:
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AC/DC power adapter
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Localized power cord
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Rechargeable Li-ion battery
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Soft carrying case with backpack and shoulder straps
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Quick Reference Guide
Migrating from the N9927A to a current configuration
Keysight has discontinued the N9927A. Techmaster keeps this page as a specification reference and to support installed units — ISO/IEC 17025 calibration, repair and accessories remain fully available.
Keysight’s official product page does not list a direct replacement for the N9927A. Techmaster engineers will recommend an equivalent current configuration that matches the measurement range, channel count and options you use.
Replacement advice
Call 0908 173 345 or send a request via our contact page to get an equivalent current model recommended.
Source: Keysight official product page — N9927A (“Replacement Product” section). Contact a Techmaster engineer on 0908 173 345 for migration advice.
Keysight N9927A key features
- Configure as a full, two-port VNA, time-domain reflectometer, vector voltmeter, cable and antenna analyzer, and more
- Measure all four S-parameters simultaneously with a single connection and up to 95 dB of dynamic range
- Perform accurate testing with QuickCal, full two-port unknown thru Cal, and Thru, Reflect, Line (TRL) calibration in the field
- Measure average and pulse power easily with a USB power sensor.
- Carry the lightest handheld VNA at only 3.0 kg (6.6 lb.)
Source: official Keysight product page (https://www.keysight.com/us/en/product/N9927A/fieldfox-a-handheld-microwave-vector-network-analyzer-18-ghz.html)
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