Featured Post from Milwaukee School of Engineering

Ask an Expert: Are airline concerns over 5G technology warranted?

Jan 20, 2022

2 min

Steve Holland, Ph.D.

Airlines around the world announced they were grounding planes this week as the rollout of 5G technology was set to begin. Major providers AT&T and Verizon halted their 5G rollout plans amidst the airlines’ claims that the technology would render a large swath of their aircraft unusable.


Dr. Steven Holland, an associate professor at Milwaukee School of Engineering, helps sort out the validity of the airlines’ claims and explain why they are so concerned. Dr. Holland is an expert in electromagnetics, antennas and microwave/radio frequency circuits.


“5G wireless systems promise transformational increases in wireless internet speed and connectivity. A key to the higher network speeds is increased 5G radio frequency spectrum usage. While reduced speed 5G has been operational in parts of the US for several years, new 5G frequency spectrum was set to become operational in early December 2021 and offer significantly higher network speeds.


“However, rollout was delayed one month when the FAA raised warnings that 5G towers operating in this new spectrum could interfere with airplane radar altimeters, which operate at frequencies just above this new 5G spectrum. Altimeters are critical instruments in modern aircraft that measure a plane’s altitude, and thus potential interference could be disastrous.


“While the altimeter and 5G frequency bands do not overlap, they are relatively close together, and the altimeter standards were set decades ago when the radio spectrum was far less crowded. As a result, the altimeter circuitry was not designed to operate in the vicinity of systems like the 5G towers that will transmit radio signals so close to the altimeter frequency range.


“Due to limited testing, the FAA and FCC were not able to determine conclusively if the interference concern is warranted before the month-long delay expired in early January, and so an additional two-week delay was instituted. This brings us to today, January 19th – and still no conclusion has been reached by the FCC and FAA. To avoid further rollout delays, today several wireless carriers deployed the new 5G operating band on their networks except for those towers near airports. More extensive testing is needed to determine whether 5G interference is truly a risk to the altimeter systems.”


Dr. Holland is available to speak with media about 5G technology and how it can impact aircraft. Simply click on his icon below to arrange an interview today.


Connect with:
Steve Holland, Ph.D.

Steve Holland, Ph.D.

Professor, Program Director

Dr. Steve Holland's areas of expertise include electromagnetics, antennas, and microwave/radio frequency circuits.

AntennasElectromagneticsRF/Microwave EngineeringAnalog ElectronicsEngineering Education

You might also like...

Check out some other posts from Milwaukee School of Engineering

1 min

Should campaigns be concerned about cyber threats?

Presidential campaigns are massive machines that require vast numbers of volunteers, staff working in each state. doors and supporters. And with everything digital - that's a lot of data that are valuable to those inside the campaign and just as valuable to those on the outside of a campaign. In this ExpertSpot MSOE's Walter Schilling answers the question: Should campaigns be concerned about cyber threats? Walter is available to speak with media - click on his profile below to arrange and interview today.

3 min

Higher education, biotech and innovation - will the future be part of the 2024 campaign?

As  the RNC brings national attention to Milwaukee, discussions are expected to cover pivotal topics such as biotechnology, innovation, and higher education. And as the Republican National Convention 2024 begins, journalists from across the nation and the world will converge on Milwaukee, not only to cover the political spectacle but also to dig deeper on the key issues that may decide the election. To help visiting journalists navigate and understand these issues and how and where the Republican policies are taking on these topics our MSOE experts are available to offer insights. Dr. Wujie Zhang, Dr. Jung Lee, Dr. Eric Baumgartner, Dr. Candela Marini, and Dr. John Walz are leading voices nationally on these important subjects and are ready to assist with any stories during the convention. Dr. John Walz President Expertise: Thought leadership on higher education, relevancy and value of higher ed View Profile “Engineering is not a very diverse field,” Walz said. “I want to continue to push those boundaries and make our programs open, to see more and more under-represented students come here and succeed here, and do well here.” MSOE president John Walz works to make 'hidden gem' not so hidden. Milwaukee Journal Sentinel May 17, 2023 Dr. Wujie Zhang Professor, Chemical and Biomolecular Engineering Expertise: Biomaterials; Regenerative Medicine and Tissue Engineering; Micro/Nano-technology; Drug Delivery; Stem Cell Research; Cancer Treatment; Cryobiology; Food Science and Engineering (Fluent in Chinese and English) View Profile “We accidentally noticed that we can make the hydrogel particle red blood cell shaped,” he explains. “We started then to make artificial red blood cells to mimic pretty much all aspects of red blood cells.” You're Somebody's Type MKE Lifestyle January 24, 2020 Dr. Jung Lee Professor, Chemical and Biomolecular Engineering Expertise: Bioinformatics, drug design and molecular modeling. View Profile Dr. Eric Baumgartner Executive Vice President of Academics Expertise: Thought leadership on higher education, relevancy and value of higher ed, role of A.I. in future degrees and workforce development. View Profile MSOE serves as an educational resource to Wisconsin companies is building an A.I.-ready workforce. In 2018 MSOE was the first in the nation to launch a B.S. in Computer Science with a sole focus on A.I. and machine learning. Wisconsin Governor’s Task Force on Workforce and Artificial Intelligence December, 2023 Dr. Candela Marini Assistant Professor Expertise: Latin American Studies and Visual Culture View Profile “Contrary to stereotypical images of Native Americans trying to stop ‘progress’ by fighting against mines and pipelines projects, the Menominees’ sustainable forestry stands out as a clear example of resource management that actually thinks about, and works for, the future,” said Marini. The MSOE Mindset visits the Menominee Indian Reservation MSOE Online April 11, 2019 . .    . Media Relations Contact To schedule an interview or for more information, please contact: JoEllen Burdue Senior Director of Communications and Media Relations Phone: (414) 839-0906 Email: burdue@msoe.edu . .    . About Milwaukee School of Engineering (MSOE) Milwaukee School of Engineering is the university of choice for those seeking an inclusive community of experiential learners driven to solve the complex challenges of today and tomorrow. The independent, non-profit university has about 2,800 students and was founded in 1903. MSOE offers bachelor's and master's degrees in engineering, business and nursing. Faculty are student-focused experts who bring real-world experience into the classroom. This approach to learning makes students ready now as well as prepared for the future. Longstanding partnerships with business and industry leaders enable students to learn alongside professional mentors, and challenge them to go beyond what's possible. MSOE graduates are leaders of character, responsible professionals, passionate learners and value creators.

2 min

Water, resources and infrastructure

Across America we're seeing flooding, drought, epic storms and reservoirs running dry. Water, how it is controlled and regulated is an emerging topic.  And for the next four years, with the unknown impacts of climate change - water will be on a lot of people's minds. And as the Republican National Convention 2024 begins, journalists from across the nation and the world will converge on Milwaukee, not only to cover the political spectacle but also to dig deeper on the key issues that may decide the election. To help visiting journalists navigate and understand the depth of Milwaukee's heritage and modern vibrancy, our MSOE experts are available to offer insights. Professor William Gonwa has worked in the fields of wastewater collection, storm water management, and flood protection since 1984. His research focuses on the water resources area of civil engineering including collection systems and stormwater management. He received his doctorate from Marquette University, his masters from the University of Kentucky, and his bachelors from the University of Wisconsin-Madison, all in civil and environmental engineering. . .    . Dr. William Gonwa Professor, Civil Engineering Expertise: Water Resources, Sewers, Storm Water, Civil Engineering education View Profile One may hear of news reports of large events and notice that they appear to occur more frequently than they might expect (i.e. a 100-year storm is reported in the news in the Detroit region more often than once every 100 years). A casual observer not well versed in what these rainfall statistics mean might be tempted to blame this on climate change, but the dynamic described here is not the result of just climate change. It is the result of the large size of the city of Detroit and the fact that rainfall frequencies are published for a point rainfall, not regions. This regional rainfall effect will occur in any metropolitan area with a large geographic extent. Why properly characterizing large storms is critical for stormwater professionals Stormwater Solutions June 07, 2024 .    .    . For further information and to arrange interviews with our experts, please contact: JoEllen Burdue Senior Director of Communications and Media Relations Phone: (414) 839-0906 Email: burdue@msoe.edu . .    . About Milwaukee School of Engineering (MSOE) Milwaukee School of Engineering is the university of choice for those seeking an inclusive community of experiential learners driven to solve the complex challenges of today and tomorrow. The independent, non-profit university has about 2,800 students and was founded in 1903. MSOE offers bachelor's and master's degrees in engineering, business and nursing. Faculty are student-focused experts who bring real-world experience into the classroom. This approach to learning makes students ready now as well as prepared for the future. Longstanding partnerships with business and industry leaders enable students to learn alongside professional mentors, and challenge them to go beyond what's possible. MSOE graduates are leaders of character, responsible professionals, passionate learners and value creators.

View all posts
Powered by