The Keysight FieldFox handheld analyzers are rugged, lightweight, and portable battery-powered instruments designed for making RF measurements in demanding field conditions. These analyzers support measurements for RF devices including cables, antennas, filters, amplifiers, and provide comprehensive signal and spectrum analysis capabilities.

• Withstands toughest working conditions with ruggedized design
• Lightweight and portable at 3.4 kg (7.4 lb)
• Battery powered for field operation
• Software-defined instrument configuration
• 120 MHz gap-free, real-time bandwidth
• Simultaneous measurement of all four S-parameters
• Accurate spectrum analyzer measurements without warmup
• Over-the-air measurements for 5G NR and LTE
• GPS/GNSS for geolocation and timestamping

Available models include: N9912C, N9913B/C, N9914B/C, N9915B/C, N9916B, N9917B, N9918B, N9950B, N9951B, N9952B, N9953B, N9933B/C, N9934B/C, N9935B/C, N9936B, N9937B, N9938B, N9960B, N9961B, N9962B, N9963B

• Truly software-defined analyzer with maximum flexibility
• Ideal 5G deployment and field-testing tool
• RF coverage measurements up to 54 GHz and beyond
• Beamforming verification with phased array antenna support
• Wideband capture and recording of fully corrected IQ data
• Comprehensive radar and EW systems diagnostics
• Results correlate with high-performance benchtop instruments
• Durable construction for toughest working conditions

FieldFox provides comprehensive measurements to troubleshoot and maintain cable and antenna systems, addressing 50-60% of microwave-link equipment issues related to cables, antennas, and connectors.

• Insertion Loss and Cable Loss: Characterizes loss of jumper cables, feeder cables, diplexers, or gain of tower-mounted amplifiers
• Return Loss/VSWR: Critical parameter for measuring power transfer efficiency
• Distance-to-Fault (DTF) and Time-Domain Reflectometry (TDR): Locates discontinuities in feeder lines and identifies specific faults
• Simultaneous DTF and TDR: FieldFox is the only handheld instrument that measures both in a single sweep