A lightweight, durable, microwave spectrum analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
Key Features
Never Sacrifice Capability or Portability
Keysight's FieldFox portable analyzers are equipped to handle your toughest working environments during routine maintenance, in-depth troubleshooting, and anything in between.
Make accurate spectrum analyzer measurements (± 0.5 dB) without warmup
Capture intermittent signals with 10 MHz gap-free, real-time bandwidth
Characterize radar pulse profiles with a portable solution
Perform over-the-air measurements for 5G TF and LTE
Capture I/Q data for RF signal monitoring and analysis
Use GPS/GNSS for geolocation and timestamping
Carry one lightweight unit at 3.2 kg (7.1 lb)
Designed for Mobility
Kit friendly at 7.35 lb. (3.34 kg)
Large buttons are easy to operate, even when wearing gloves
Field swappable battery lasts up to 4 hours
Non-slip rubber grip for secure handling
Vertical "portrait" orientation for easy operation
Built for Tough Environments
Rugged enough to meet MIL-specs
Completely sealed instrument enclosure
Operating temperature: -10 to +55 ºC (14 to 131 ºF)
Water-resistant chassis, keypad and case
Meets MIL-PRF-28800F Class 2 requirements
Type tested to MIL-STD-810G and IEC/EN 60529 standards
Measurement Capabilities
Insertion Loss and Cable Loss
Characterizes the loss of jumper cables, feeder cables, diplexers, or gain of tower-mounted amplifiers. Measure both 1-port cable loss and 2-port insertion loss with extended range transmission analysis (ERTA) for long, lossy in-situ cables.
Return Loss/VSWR
The single most important parameter for measuring and verifying cable and antenna system power transfer efficiency.
Distance-to-Fault (DTF) and Time-Domain Reflectometry (TDR)
Determine the location and nature of discontinuities in feeder lines (short, open, or water ingress). Make RL and DTF measurements simultaneously and use the built-in cable editor to create custom cable types onsite.
Calibration Features
CalReady Calibration
Save time with CalReady feature - the analyzer is already calibrated and ready to make measurements (S11, S22, 1-port cable loss, DTF/TDR) without additional calibration devices.
Broadband Calibration
Calibrate over the maximum frequency range and change frequency range or number of points without recalibrating. Calibration is interpolated with maintained accuracy.
Fast ECal Support
Supports Keysight's USB ECal modules to reduce calibration time, minimize connections, and increase measurement consistency and accuracy.
Spectrum Analyzer Performance
Ideal for microwave, radar, satellite communications, and commercial microwave backhaul applications. Excellent dynamic range (TOI +15 dBm), close-in phase noise (-117 dBc/Hz at 10 kHz offset), and fast sweep time for detecting low-level signals under strong signal conditions.
Frequently Asked Questions
Can you ship orders to Canada or Australia?
Yes, we ship orders worldwide.
What delivery methods do you use and what is the delivery time?
We ship by EMS, DHL, FedEx, UPS, TNT with tracking numbers. Usual delivery time is 4-7 workdays.
What is your payment term?
100% T/T payment before shipment.
How can I ask any other questions?
You can contact us online or leave us messages below.
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