Technical Overviews
Carry Precision with You
Every piece of gear in your kit had to prove its worth. Measuring up and earning a spot in your field kit is the driving idea behind Keysight’s FieldFox RF analyzer. It is equipped to handle routine maintenance, in-depth troubleshooting and anything in between.
Starting with adaptability: every operating mode is flexible enough to meet the needs of novices and experts alike. To accelerate your work, each mode has a task-driven interface that saves time in the field. Best of all, FieldFox is designed to withstand your toughest working conditions.
Add FieldFox to your kit and carry precision with you.
World’s Most Integrated Handheld RF Analyzer
Key measurements
Key differentiators
Cable and antenna analyzer
Fifty to sixty percent of cell site problems are caused by faulty cables, connectors, and antennas. Degraded feed lines cause poor coverage, unncessary handovers, paging failures and access failures on uplink. To avoid service quality problems, it is critical to keep cell sites’ cable and antenna systems in good condition.
Return loss and DTF measurements
FieldFox can make both return loss and distance-to-fault measurements at the same time. This helps you correlate overall system degradation with specific faults in the cable and antenna system.
The built-in cable editor allows you to edit existing cable types on-site, and save them as new cable types with user defined names.
CalReady-calibrated at power on and ready to go
Each instrument is CalReady at the RF Out port, immediately following power-on or preset. This means it’s already calibrated and ready to make measurements such as one-port cable loss, VSWR, return loss, and DTF measurements at the test port.
Hassle-free calibration in the field with QuickCal
FieldFox comes with a built-in calibration capability that allows you to calibrate the network analyzer without carrying a cal kit into the field. With any other test instrument, when you add additional devices to the test port, such as jumper cables or adapters, you need to recalibrate using a cal kit.
Broadband calibration
FieldFox allows you to make broadbandcalibrations, which means the instrumentis calibrated over the maximum frequency span. After a broadband calibration, you can change the frequency range or number of points without recalibrating the instrument.
Spectrum analyzer
Interference is a major source of cell site problems. Interference can be internal or
external, and uplink or downlink. Downlink interference reduces coverage, while uplink interference causes access failure. Interference has a direct impact on the quality of service of wireless communication services.
Field strength measurements
Field strength characterization is a common test performed by operators in the field. To make accurate measurements, the gain and loss of the antenna and cables need to be accounted for. With FieldFox, antenna factors and cable loss data can be loaded using either the front panel or the Data Link software.
Independent signal source
FieldFox has a built-in independent signal source, with a frequency range of up to 4/6 GHz. The signal source can be tuned to any frequency, independent of the spectrum analyzer frequency. You can use the signal source to create a test signal to measure coverage, antenna isolation, antenna direction alignment, and shielding effectiveness, frequency-offset devices and long cable loss measurement.
Interference analyzer
Interference can be internal or external, uplink or downlink, and has a direct impact on the quality of service (QoS) of a communication network. FieldFox’s interference analyzer is designed to identify interference signals quickly.
Channel scanner
Channel scanner allows users to make multiple channel power measurements simultaneously. It is used to verify wireless network coverage, path loss and potential interference issues. It also can be used to measure primary carriers and their intermodulated products.
Network analysis
FieldFox RF analyzer can be configured
with VNA transmission/relection (T/R) capability for S11 and S21 measurements.
Transmission measurement
FieldFox provides a 2-port transmission measurement that measures insertion loss, amplifier gain, filter passband, and loss. It also makes a S21 scalar measurement if Option 303 is enabled.
Network analyzer time domain
With the time domain Option, FieldFox computes the inverse Fourier transform of the frequency-domain data to display reflection or transmission coefficients versus time. Time domain gating can be used to remove unwanted responses such as connector mismatch or cable discontinuities, and the results can be displayed in either time or frequency domain.
FieldFox’s time domain function supports both low pass mode and band pass mode, enabling users to measure both broadband and frequency-selective devices
Vector voltmeter
Using FieldFox’s vector voltmeter (VVM), you can measure the phase shift and electrical length of a device. By utilizing the “Zero” function, the phase and electrical length of one device can be measured relative to a “golden device”. View results on the large display which can be seen as far as ten feet away.
USB power measurements
FieldFox RF can connect with the Keysight USB power sensors to make RF power measurements. Using USB peak power sensors, users can measure both the average and the peak power of a modulated signal.
USB power measurements versus frequency
In addition to power measurements at a single CW frequency, you can measure power versus frequency - a swept measurement. FieldFox’s source frequency can be set equal to the sensor/receiver frequency, or with an offset. The frequency of both the source and receiver are swept, and the two track each other. The offset frequency can be negative, zero, or positive.
Pulse measurements
FieldFox’s pulse measurement option allows you to efficiently characterize pulsed RF signals such as those used in radar and electronic warfare systems, leveraging the Keysight USB peak power sensors. Measurements include peak power, peak to average ratio, and pulse profile parameters such as rise time, fall time and pulse repetition frequency.
Remote control capability with iPad and iPhone
Engineers and technicians can now remotely monitor and control their FieldFox using their iOS device such as an iPhone, iPad, or iPod Touch. FieldFox’s Remote Viewer iOS app emulates the front panel of the unit, letting you simply press any FieldFox key right from your iOS device. The app also allows you to instantly access technical documents such as data sheets.
FieldFox’s Data Link software makes report generation and documentation easier
FieldFox’s complimentary Data Link software provides data transfer, data definition and report generation. You can add markers and limit lines to traces, and you can load cable files and antenna factors using Data Link
Remote control via LAN and FieldFox programming
FieldFox’s can be controlled using SCPI over LAN and USB.
USB keyboard and mouse Support
FieldFox supports use of USB keyboards and mice to simplify the input of text such
as file names while working in the field.
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