SANTA ROSA, Calif.--(BUSINESS WIRE)--Dec 4, 2025--
Keysight Technologies, Inc. (NYSE: KEYS) introduced the N99xxD-Series FieldFox Handheld Analyzer, the latest evolution of Keysight’s trusted FieldFox family. Purpose-built for precision and portability, the new D-Series enables 120 MHz gap-free IQ streaming, high-speed data transfer, and seamless field-to-lab integration, setting a new benchmark for wideband signal analysis in demanding RF environments.
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Today’s radio frequency (RF) environments are becoming increasingly complex and dynamic, as mission-critical, commercial, and consumer systems converge across the spectrum. From 5G and radar to emerging 6G and satellite communications, engineers face mounting challenges in identifying interference, capturing transient events, and characterizing wideband signals without data loss. Traditional handheld analyzers often fall short — limited by bandwidth, streaming speed, or data-transfer bottlenecks
The new FieldFox D-Series bridges this gap by combining the ruggedness of a field instrument with the power and precision of a lab analyzer. It empowers users to capture, stream, and replay every signal event, enabling faster troubleshooting, deeper analysis, and greater confidence that no data is missed, even in the most complex RF landscapes.
Key capabilities of the N99xxD-Series FieldFox handheld analyzer include:
The N99xxD-Series includes 14 models (combo or spectrum analyzers) to cover the maximum frequency of 14, 18, 26.5, 32, 44, 50, and 54 GHz. Each model supports more than 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 further enhances the analyzer’s security and file management, while a touchscreen interface improves usability, efficiency, and reduces errors.
Keysight has introduced advanced artificial intelligence (AI) capabilities to its FieldFox handheld analyzers and Keysight Spectrum Management Software (KSMS S9910A), delivering faster and smarter spectrum operations. By leveraging wideband signal capture and the new machine learning model (S9916A), the solution now classifies major wireless standards — including LTE, 5G NR, Wi-Fi, and Bluetooth — with exceptional speed and accuracy. This integration automatically and dramatically reduces time-to-resolution and provides deep insights into congested or contested spectrum environments, empowering customers to make informed decisions in real time.
Eric Taylor, General Manager and Vice President of Keysight Aerospace, Defense, and Government Solutions, said: “Keysight is committed to delivering robust, efficient tools that empower customers 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’.”
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About Keysight Technologies
At Keysight (NYSE: KEYS), we inspire and empower innovators to bring world-changing technologies to life. As an S&P 500 company, we’re delivering market-leading design, emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product life cycle. We’re a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world. Learn more at Keysight Newsroom and www.keysight.com.
FieldFox D-Series handheld analyzers offer versatile, software-defined applications ranging from 120 MHz gap-free IQ data streaming to real-time spectrum analysis.
WASHINGTON (AP) — President Donald Trump sought on Wednesday to explain his rationale for the war against Iran at a pivotal moment at home and abroad, but he offered few new details as he amasses extraordinary executive authority to prosecute the military operation.
The war is fast becoming a signature of his second-term agenda and the speech was a capstone to a remarkable day flexing presidential power.
Trump started the morning as the first sitting president to show up for a U.S. Supreme Court hearing, a stunning reach of the executive into the affairs of the judicial branch. He ended with his first primetime address from the White House about a war he launched on his own, bulldozing past Congress.
On an early spring night when many Americans may have been looking upward as Artemis II astronauts lifted off for NASA's return to the moon, Trump gave a nod to that historic milestone. Then he quickly refocused attention back to him — and to the conflict with Iran that has killed more than a dozen U.S. service members and appears to have no easy exit in sight.
"America, as it has been for five years under my presidency is winning — and now winning bigger than ever before," Trump said.
“We’re going to finish the job and were going to finish it very fast," he added.
The president said at the top of his address that he wanted to “discuss why Operation Epic Fury is necessary for the safety of America and the security of the free world,” showing that part of the goal for Wednesday’s speech was to take on the confusion that has persisted as he and his administration have shifted their reasons for launching the mission and its objectives.
But Wednesday night, Trump did not offer any new explanations.
He maintained that Iran cannot have a nuclear weapon, calling such a prospect “an intolerable threat.”
Though he and his administration insisted that the U.S. and Israel obliterated Iran’s nuclear program in strikes last summer, he said Wednesday that Iran sought to rebuild its nuclear program after those strikes at a new different location. He did not offer details but said it indicated Iran was not backing away from its nuclear ambitions. He also said Iran was building a vast arsenal of ballistic missiles that were a threat to America’s homeland.
While he said Iran’s ballistic missile capacity was greatly reduced, he didn’t explain how the operation had headed off Iran’s nuclear ambitions.
He instead painted the threats from Iran generally as having been wiped away, though he didn’t back up that assertion, especially as multiple competing factions of power remain within Iran’s theocracy.
Iran long has insisted its nuclear program was peaceful. It had, however, been enriching uranium up to 60% purity, a short, technical step away from weapons-grade levels. Before the war, U.S. intelligence agencies assessed that Iran had yet to begin a weapons program, but had “undertaken activities that better position it to produce a nuclear device, if it chooses to do so.”
Thousands of additional U.S. troops are heading to the Middle East. Gulf allies are urging Trump to finish the fight, arguing that Tehran hasn’t been weakened enough.
And yet Trump himself has predicted the U.S. will be done “within maybe two weeks."
He said the “core strategic objectives are nearing completion" and did not signal any preparations for a ground invasion by American troops — to retrieve Iran's enriched uranium or secure the Strait of Hormuz, where a chokehold by Iran has sent energy prices soaring.
But Trump offered few details about next steps. At one point he told allies to simply reopen the waterway critical to oil shipments themselves — “take it," he implored.
Trump is fast approaching the 60-day mark when he must seek approval from Congress under the War Powers Act to continue any military operations.
Trump did not announce the imminent start of peace talks or any other diplomatic effort to end the war.
Instead he recounted the long wars in Korea and Vietnam and vowed the U.S. would be better off because of this one.
“This is a true investment for your children and your grandchildren’s future,” he said.
Trump has berated U.S. allies for not doing their part in the conflict, even as British Prime Minister Keir Starmer said he would convene a diplomatic summit to help reopen the Strait of Hormuz after the fighting ends.
Trump and Secretary of State Marco Rubio have suggested that NATO will need to be reconsidered once the Iran war is over. But Trump did not mention NATO by name during the speech.
Trump has gone so far as to say he is “seriously considering” withdrawing from the military alliance, which has been a bulwark of transatlantic unity and security since the end of World War II.
But he cannot simply withdraw from NATO on his own without a legal fight.
“We’re going to have to re-examine the value of NATO and that alliance for our country,” Rubio said Tuesday in an interview with Fox News host Sean Hannity. “Ultimately, that’s a decision for the president to make, and he’ll have to make it.”
Trump, who ran as the “America First” president vowing not to drag the country into endless wars, has yet to fully address the political pushback he faces from his own base of supporters over the Iran conflict.
The U.S. economy is roiling, the financial markets are swinging with Trump's various pronouncements about the war effort, and Americans are facing pain at the pump as the cost of living rises.
While the president often describes the inflationary high prices as a momentary setback, it's all feeding into a rocky November midterm election.
Some of the sharpest criticism he’s faced in the early days of the Iran war has come from once-loyal media figures in the MAGA-universe, including Tucker Carlson.
President Donald Trump speaks about the Iran war from the Cross Hall of the White House on Wednesday, April 1, 2026, in Washington. (AP Photo/Alex Brandon, Pool)
President Donald Trump gestures after speaking about the Iran war from the Cross Hall of the White House on Wednesday, April 1, 2026, in Washington. (AP Photo/Alex Brandon, Pool)
President Donald Trump speaks in the Oval Office of the White House before signing an executive order Tuesday, March 31, 2026, in Washington. (AP Photo/Alex Brandon)
