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N9923A FieldFox Handheld RF Vector Network Analyzer 4/6 GHz

Technical Overviews

Technical Overview

World’s Most Accurate Handheld Vector Network Analyzer

FieldFox

The first step in ensuring that wireless communication systems are running at their optimum level is to verify that RF components in the system, such as cables, antennas, and filters are properly tested and kept in good condition.

The majority of these tests are conducted in the field or in a warehouse, where bench top instruments are not readily available, testing space is limited, or where a power source is simply not available. The Keysight Technologies, Inc. handheld FieldFox RF Vector Network Analyzer (VNA) is designed to make network analysis measurements in the field easier, convenient, and the most reliable.

QuickCal revolutionizes calibration in the field

The number one challenge in making accurate network analyzer measurements in the field is reliability, where large temperature fluctuations are common.

Keysight’s FieldFox RF VNA is the only handheld network analyzer with QuickCal technology that allows operators to easily correct for drift errors caused by temperature changes. QuickCal is a built-in calibration system that provides worry-free accuracy and reliability. FieldFox’s built-in standards make calibration simpler, by eliminating the need to carry mechanical calibration kits into the field.

Unmatched reliability for day-to-day tests

Whether you are testing a flight line for the air force, an RF system on a war ship, a wireless communication cable and antenna system, tuning RF components, or making other general purpose network analyzer measurements — the FieldFox RF VNA provides unmatched measurement reliability, stability, and efficiency for your every day test needs. The FieldFox RF VNA also builds on Keysight’s 40-year legacy of network analysis leadership in calibration, accuracy, and innovation.

Key measurements

- Full 2-port S-parameters, magnitude and phase

- Time domain with gating

- Full 2-port Cal, TRL, QuickCal

- Cable and antenna test, distance-to-fault, return loss

- Vector voltmeter, 1- and 2-channel

- Power measurements with USB power sensor

- Pulse measurements with USB peak power sensor

Key differentiators

- Built-in QuickCal enables calibration without a cal kit

- Best measurement stability over time and temperature

- Industry’s only handheld network analyzer with MIL PRF 28800F Class 2 compliance with no exceptions

- Easy-to-use, task-driven user interface

- Weather resistant, compact, and field-friendly design, no fan and vents

- Remote control via iOS device

Pick up FieldFox for its ergonomics and depend on its durability and convenience

Key Measurements

Vector Network Analysis

The base FieldFox RF VNA provides transmission/reflection (T/R) measurements, or S11 and S21, with magnitude and phase.

Adding Option 122 (full 2-port S-parameters) brings new levels of accuracy and convenience for testing RF components. A full 2-port network analyzer lets you measure the forward and reverse characteristics of your components without having to disconnect, turn around, and reconnect them to the analyzer.

It also provides full 2-port calibration to give you the best measurement accuracy possible. Depending upon your application, you can choose the optimum performance level of an S-parameter analyzer (Option 122) or transmission reflection analyzer (base model).

You also can simultaneously measure and view all four S-parameters, with a single connection.

FieldFox VNA contains four independent, sensitive receivers. The receivers provide more than 100 dB of dynamic range for vector measurements of high rejection, narrowband devices such RF filters. The receivers also make possible full 2-port error correction with the Unknown Thru method, allowing you to measure non-insertable devices.

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, unnecessary handovers, paging failures and access failures on the uplink. To avoid service quality problems, it is critical to keep the cell sites’ cable and antenna systems in good condition.

Use FieldFox to make return loss, VSWR, insertion loss/transmission, one-port cable loss, and distance-to-fault (DTF) measurements. You can test antennas, cables, filters, and amplifiers with a single handheld instrument.

Return loss and DTF measurements

FieldFox can make return loss and distance-to-fault measurements at the same time. It 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.

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