Keysight Technologies has unveiled the N99xxD-Series FieldFox Handheld Analyser, the latest advancement in its FieldFox line. Engineered for precision and portability, the D-Series offers 120 MHz gap-free IQ streaming, high-speed data transfer, and seamless integration from field to lab, establishing a new benchmark in wideband signal analysis for challenging RF environments.
The complexity of contemporary radio frequency (RF) environments is escalating, with mission-critical, commercial, and consumer systems converging. Engineers are increasingly challenged to identify interference, capture transient events, and characterise wideband signals without data loss. Traditional handheld analysers often fall short due to limitations in bandwidth, streaming speed, or data-transfer capabilities.
The FieldFox D-Series addresses these challenges by merging the robustness of a field instrument with the precision of a lab analyser. It allows users to capture, stream, and replay signal events, facilitating faster troubleshooting and deeper analysis, ensuring no data is missed even in the most intricate RF settings.
Key features of the N99xxD-Series include 120-MHz IQ streaming with built-in SFP+ high-speed data interfaces for 10 GbE data transfer, ensuring uninterrupted data capture and efficient streaming. It offers wideband signal analysis and playback for advanced troubleshooting, spectrum utilisation monitoring, and interference detection. The analyser facilitates a seamless field-to-lab workflow, enabling the recreation of real-world signal scenarios for detailed lab analysis and system optimisation. It delivers unmatched RF performance with absolute amplitude accuracy of ±0.1 dB without warm-up, surpassing most handheld and benchtop analysers currently available.
The N99xxD-Series comprises 14 models, both combo and spectrum analysers, covering maximum frequencies of 14, 18, 26.5, 32, 44, 50, and 54 GHz. Each model supports over 25 software-defined FieldFox applications, including vector network analysis, spectrum and real-time spectrum analysis, noise figure measurement, electromagnetic interference analysis, pulse signal generation, and direction-finding using techniques like angle of arrival (AoA) and time difference of arrival (TDoA). A Linux-based operating system enhances security and file management, while a touchscreen interface improves usability and efficiency, reducing errors.
Keysight has also integrated advanced artificial intelligence (AI) capabilities into its FieldFox handheld analysers and Keysight Spectrum Management Software (KSMS S9910A), enhancing spectrum operations with speed and intelligence. Leveraging wideband signal capture and a new machine learning model (S9916A), the solution classifies major wireless standards — including LTE, 5G NR, Wi-Fi, and Bluetooth — with exceptional speed and accuracy. This integration significantly reduces time-to-resolution and provides deep insights into congested or contested spectrum environments, enabling real-time informed decision-making.
Eric Taylor, general manager and vice president of Keysight aerospace, defence, and government solutions, stated, “Keysight is committed to delivering robust, efficient tools that empower customers to tackle demanding field tasks. With high-speed interfaces, gap-free streaming, and secure Linux operations, the new FieldFox D-Series redefines portable RF analysis — bringing capabilities like signal sensing, geolocation, and spectrum management into a rugged handheld platform. Its software-defined architecture lets users add new capabilities onsite, giving them flexibility to move faster and be ‘first-to-market.’”
