TRADE NEWS: Keysight Technologies’ FieldFox Analyzers Provide the Industry’s Most Comprehensive Handheld Cable Test Solution

SANTA ROSA, Calif. — (BUSINESS WIRE) — February 3, 2015 — Keysight Technologies, Inc. (NYSE: KEYS) today introduced two cable test options for its FieldFox handheld analyzers, making them the industry’s most comprehensive handheld solution for cable testing.

Cables (e.g., waveguide, coaxial and twisted-pair) are the most widely used components in RF and microwave communication systems. They are also the leading cause of their failure. During maintenance of these systems, engineers and technicians need to measure cable performance (e.g., return loss and voltage standing wave ratio (VSWR)), while also identifying fault locations and their cause (e.g., bad insulation, kinks and water ingress). Such testing requires a cable and antenna analyzer, network analyzer, signal generator and power meter; all of which must be transported and set up for testing in the field. The process is error prone and leaves the instruments subject to accidental damage.

The new Time Domain Reflectometry (TDR) cable measurement option enables TDR measurements for the cable and antenna analyzer. With this option, Keysight’s FieldFox analyzers become the ideal tool for any cable system test. The option complements the analyzers’ return loss (RL) and distance-to-fault (DTF) measurements. Furthermore, it measures impedance changes along the cable and helps identify specific faults, while the analyzer’s RL measurement capability exposes mismatch of cable connections and DTF capability indicates faults and poor connections along the cable.

Measuring long microwave cables in the field proves to be a very challenging task and requires instruments to provide a high dynamic range and fast and reliable results. The new FieldFox Extended Range Transmission Analysis option addresses one of the major challenges to measuring cables in the field; measuring in-situ, long lossy microwave cables. Accessing both ends of the cables or waveguides at the same time is difficult. Using a signal generator with a broadband detector or power sensor to measure cable loss can be a slow process, it also is prone to external interference and does not allow high levels of dynamic range. Deploying a benchtop solution in the field to make the measurement is also non-ideal due to its large size and cost.

With Extended Range Transmission Analysis, two FieldFox instruments are deployed at each end of the measured cable. One analyzer acts as a source, while the other acts as a receiver. Both instruments are step synchronized with hardware triggers. By taking advantage of Keysight’s proprietary InstAlign spectrum analysis technique, engineers and technicians can use this configuration to make very accurate cable loss measurements without calibration and warm up. This option can also be configured with frequency-offset to measure devices such as mixers and converters.

“Carrying precision into the field is the key driver behind Keysight’s FieldFox analyzers,” said Dan Dunn, general manager for Keysight’s RF handhelds. “Our new measurement options further build on this idea by enabling customers to use FieldFox to perform comprehensive cable testing in the field, while continuing to deliver Keysight-quality measurements.”

Additional Cable Test Functionality

In addition to the new TDR cable test and extended range transmission analysis capabilities, FieldFox offers a number of features that make it ideally suited for cable test. It has the ability to measure RL, VSWR, impedance, insertion loss, and S-parameters with magnitude and phase. FieldFox can also be used for spectrum analysis or vector voltmeter measurements.

U.S. Pricing and Availability

Keysight’s new TDR cable measurements capability (Option 215) and Extended Range Transmission Analysis (Option 209) are now available for all FieldFox RF and microwave combination analyzer models at a price of $1,000 and $5,000, respectively.

More information about the new FieldFox options is available at A backgrounder is available at Images are available at

About Keysight Technologies

Keysight Technologies (NYSE: KEYS) is a global electronic measurement technology and market leader helping to transform its customers’ measurement experience through innovations in wireless, modular, and software solutions. Keysight’s electronic measurement instruments, systems, software and services are used in the design, development, manufacture, installation, deployment and operation of electronic equipment. The business had revenues of $2.9 billion in fiscal year 2014. Information about Keysight is available at

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