by Future Transport-News
05 Dec 2022
One question that continually arises about wireless charging for electric vehicles is, “Does EV wireless charging interfere with AM radio?”
The answer is, “No.” WiTricity’s wireless power transfer system for EVs (WPT-EV) does not interfere in any appreciable way with AM radio. Global radio regulations do not allow any devices with electronics to cause harmful interference to radio services with allocated spectrum, and wireless charging systems are no exception. Even though the world is split into three different regions for frequency allocation and channel separation of AM radio, the experience is always the same.
(Let me remind you that I’m an Amateur Extra “Ham” Operator. In the past, I wondered about the impact of wireless EV charging on my Ham broadcast. But I keep getting the question about AM and FM radio broadcasts. Like many people, I listen to the radio as I travel in my car – from store to store or across the state. (Utah is 270 miles east to west and 350 miles north to south. That’s more than 84,000 total square miles to explore!))
So why do some people claim that WPT-EV interferes with AM radio? Since the inception of AM radio in the early 1900s through to the 1920s (when AM radio became a dominant method of public broadcasting) through to the 1950s and 60s, electronics have improved dramatically. As a result of the increased number of electronics and technological innovations that we enjoy daily, the ambient radio noise conditions have also increased over the decades.
Since the 1950s, the invention and common use of the transistor as a means to provide electronic switching of all kinds has resulted in a technological revolution. Along with this technological revolution came drastic improvements in energy efficiency, computing power, and innovation; however, as a result, radio noise worldwide has also increased as would be expected. AM radio, in particular (as opposed to FM radio and digital variations), is particularly sensitive to electronic noise.
Broadcasters and amateur radio enthusiasts still utilize forms of AM radio for some communication, and it has become frustrating for them to protect the spectrum that they have enjoyed for the last century despite minimal improvements in the use of AM radio itself. These radio incumbents view all electronic devices as potential interferers, and they constantly push regulators to create more strict (and sometimes impossible) requirements for non-radio devices that are more prominent.
Wireless power transfer is a relatively new technology that is not well understood by radio incumbents. The term “wireless” can be particularly deceiving because “wireless” is traditionally associated with communication, and therefore they fear that wireless power will inadvertently harm AM broadcasts. However, this concern is not founded in any scientific manner and is based solely on theoretical projection; no broadcaster has provided any scientific data with actual systems to show that wireless power for electric vehicles causes any harmful interference whatsoever. In fact, wireless power for EVs uses completely different physics than AM radio, which keeps the wireless power transfer local only between the powering ground pad and the vehicle receiving pad.
But don’t just take my word for it. WiTricity has performed extensive testing and continues to perform testing with expert EMC laboratories, as well as standards and regulatory authorities, to help them understand the safe and efficient nature of wireless power transfer as well as the physics associated with it. In fact, WiTricity worked with the SAE (an organization that creates automotive standards) in a cooperative research project to perform extensive interference testing with licensed amateur radio experts (including our own) to test early prototype versions of WPT-EV in very worst-case conditions. These tests resulted in an extensive study that was reviewed by a large panel of experts and regulatory authorities in the United States of America.
The study was then contributed by the USA to the ITU-R (the organization the sets the global radio regulations) and included in annex 12 of Recommendation ITU-R SM.2451-1 as the only study that utilized actual WPT-EV systems to test the impact on AM amateur radio. This is just one of many tests, and WiTricity continues to perform testing with others such as in the European Union. All tests show that when WPT-EV systems meet the current regulatory requirements, they do not cause any harmful interference to AM radio – including public broadcasting radio and amateur radio.
If you’re interested in learning more, download the whitepaper that delves deeper into this topic and explains the technical nuances behind this discussion. While you’re doing that, I’ll continue listening to John Tesh on my favorite AM radio station as I make my way to my favorite ski slope!
This article was originally published by WiTricity.
Q-Free has announced the successful go-live of its electronic tolling system for the Harbour Crossing Tolling in Sydney, Australia.
Octopus Energy has launched the UK’s first mass-market vehicle-to-grid (V2G) tariff, which provides drivers with free charging.
TransLink, Modo, Evo and Mobi by Rogers are testing a new multi-modal smartphone app in Metro Vancouver.
The European Commission has awarded a contract to TRL and fka GmbH to analyse the need for harmonised technical rules for micromobility.
Professor Carlo Ratti has been announced as keynote speaker at UITP's MENA Transport Congress and Exhibition, 28 February to 1 March 2024.
SkedGo has announced the launch of a new traffic alert app designed to empower drivers with real-time information about journey disruptions
Skyfly and AeroVolt have partnered to complete the UK’s first airfield-to-airfield eVTOL flight with the relevant charging infrastructure.
Beam’s Saturn 5S now offers a seated option to cater to a broader audience, providing increased accessibility for riders across the region.
The Swinburne University of Technology is leading a project to implement dynamic wireless charging on Australian roads for heavy-duty vehicles.
The Silicone Expo USA will be running concurrently with the International Elastomer Conference, from 10–12 September 2024.
Robotaxi operator, Waymo has voluntarily filed a recall report with the NHTSA for the previous software used on its fleet.
Swedish micromobility operator, Voi, has reported a record year in 2023, with the company making steady growth toward its target of EBITDA profitability.
Joby Aviation has signed an agreement with Dubai’s Road and Transport Authority (RTA) to launch electric air taxi operations by early 2026.
The US DOT has announced almost 110 million USD in funding to help public transport providers recover from natural disasters.
Kapsch TrafficCom has successfully installed an end-to-end truck tolling system in the Emirate of Ras Al Khaimah.
The UK government has announced that it is accelerating the rollout of EV chargers with new grants and measures.
Yulu delves into how Internet of Things (IoT) technology is revolutionising e-bikes and shaping the future of urban mobility.
OCCS is a program that provides electric vehicles at a discounted rate to 9 disadvantaged communities in the Sacramento area.
ITA Airways, Airbus, UrbanV and Enel have announced a new partnership to promote and devise an Advanced Air Mobility (AAM) ecosystem in Italy.
Roam has announced a new partnership with Sandstorm for its new limited edition Roam Air electric motorcycle.
Archer Aviation's Midnight electric vertical takeoff and landing (eVTOL) aircraft has completed Phase 1 of its flight test programme.
After 10 years, NEXCOM is back at Embedded World 2024 from 9-11 April. Meet the team at Hall 5, Stand 5-253.
The UK government has published brand new information on how to safely purchase, charge and pilot e-bikes and e-scooters.
A consortium has launched in the Netherlands to focus on the better governance of public space to deliver enhanced mobility options.
Kapsch TrafficCom has successfully installed traffic signal priority systems for public transport in the Basque city of Vitoria-Gasteiz.
Australia’s largest micromobility company Beam is bringing its brand of community-first micromobility to the City of Stirling.
Jersey City's new affordable on-demand transit program from Via is set to benefit low-income and minority riders the most.
In Europe, 18 companies have come together to launch the EU Future Mobility Taskforce, which will inform and provide guidance to policymakers.
Under an agreement with Helo Holdings Inc., (HHI) Joby Aviation will install the first electric air taxi charger in Greater New York City.
The UK Civil Aviation Authority (CAA) has launched a consultation to establish policies for vertiport designs at existing aerodromes.
NEXCOM is excited to announce a strategic partnership with Kodifly to elevate smart city infrastructure solutions.
Transport for London (TfL) has announced that an additional 1,400 e-bikes will be added to its Santander Cycles fleet this summer.
The Spanish subsidiary of Kapsch TrafficCom has been tasked with the management of Vitoria-Gasteiz's traffic information and control systems since 2023.
Yulu explores how MaaS and smart technologies are driving a transformation towards a greener and more connected future for urban mobility.
Kodiak Robotics, Inc. has introduced the world's first fully autonomous driverless semi-truck, optimised for scaled deployment.
The Biden-Harris Administration has announced a slew of grants to aid in the extension of EV charging networks across the United States.
Geotab has created a care guide for electric vehicles with top tips on how to prepare, use, and maintain your EV during winter.
Micromobility operator, Bolt has been awarded a new e-scooter and e-bike license in Oslo, Norway.
CES 2024 presented the latest innovations in autonomous driving and explored the relevance of these technologies in rural settings.
Waymo has announced the start of rider-only testing for its fully autonomous passenger cars on freeways in Phoenix.
CES 2024 showcased the latest e-bikes launched in the industry and provided a platform for manufacturers to unveil their newest models.
The BT Group has introduced its first electric vehicle (EV) charging unit.
TIER & Dott have announced they will merge to form Europe's largest micro-mobility operator.
Kapsch TrafficCom announces the opening of the first stage of the Moravski corridor and Ruma-Šabac highway tolling project in Serbia.
Hyundai Mobis has presented its MOBION EV at CES 2024. This model is equipped with an e-Corner System for lateral and diagonal motion.
Hyundai Motor Group’s Supernal has unveiled its electric vertical takeoff and landing (eVTOL) vehicle product concept at CES 2024.
Both Valeo and WiTricity have unveiled their latest electric vehicle (EV) wireless charging solutions at CES 2024 in Las Vegas.
Bosch and Volkswagen subsidiary, Cariad are showcasing automated valet charging during the CES 2024 exhibition in Las Vegas.
At CES, HERE Technologies has announced a long-term collaboration with Uber Technologies to enhance its mapping capabilities internationally.
Continental and Aurora have finalised the design for the Aurora Drive: the world's first scalable autonomous trucking system.
May Mobility has announced the launch of its first rider-only autonomous transit service in Sun City, Arizona.
Peter Mraz, Manager of GreenGo, explains how ATOM Mobility helped power the company's electric car-sharing business.
CoMoUK's Shared Transport Conference looked at the lessons learned from mobility hubs in 2023 and how these can be applied in the year ahead.
Yamaha Motor has established a new company, ENYRING GmbH, which will offer battery swapping services for electric micromobility vehicles.
E-bikes are a practical and sustainable choice for intra-city movements, and that's where Yulu’s smart and shared electric vehicle service comes in.
Kapsch TrafficCom and LOSTnFOUND AG have been contracted to supply hardware and services for the national truck tolling system in Switzerland.
Mercedes-Benz has received the world's first approval to use exterior lighting for automated driving in the states of California and Nevada.
Hyundai Motor Group’s Advanced Air Mobility company, Supernal is set to unveil its eVTOL vehicle and vertiport concept at CES 2024.
The 3rd edition of EV Indonesia will be taking place on May 15–17 2024 at Jakarta International Expo, focused on electric automotive industries.
Pod Point has provided a list of EV charging top tips for drivers to plan ahead before undertaking their festive journey.
Overair has completed the assembly of its first full-scale Butterfly electric vertical take-off and landing (eVTOL) prototype.
Volocopter successfully conducted a multi-day flight test campaign with a crewed 2X aircraft in the Japanese cities of Osaka and Amagasaki.
Yulu jumps into the top mobility trends for 2024, reflecting on historical milestones that have paved the way for the present and future.
Micromobilty company, Bird Global, Inc. has initiated a financial restructuring process and has filed for Chapter 11 bankruptcy.
Orange County Transportation Authority (OCTA) has opened the I-405 Express Lanes system designed and built by Kapsch TrafficCom.
The US Department of Transportation (DOT) has announced 25 million USD in funding for its new Rural Autonomous Vehicle research programme.
Scotland: The UK Civil Aviation Authority has granted SaxaVord its operating licence. This is the first-ever vertical spaceport in the UK
Daedalean's Visual Traffic Detection system can help create safer skies for gliders and all those who encounter them.
Bolt has been awarded a comprehensive license for the use of its micromobility vehicles in Milan.
The Biden-Harris administration has announced a pledge of 645.3 million USD to aid the development of rural transportation & mobility needs across the US.
Cisco describes how to gain the benefits of digitisation while protecting your critical roadway infrastructure.
Mayor of Houston Sylvester Turner and METRO have unveiled a brand-new autonomous shuttle for operation in Texas.
Joby Aviation, Inc. and ANA HD have partnered with Nomura Real Estate Development Co. Ltd. for the development of a series of vertiports.
EasyMile’s autonomous shuttles are in service at University Hospital Bonn to enhance patient mobility and streamline campus operations.
Germany's KelRide project is entering its final phase, introducing Europe's largest connected operating area for autonomous shuttles.
Pod Point has announced a strategic agreement with Centrica that marks a significant step in the company's expansion into energy flexibility.
CCTA and Tri Delta Transit have partnered with East County Connection Partners and Flatiron to deploy autonomous shuttles in Contra Costa County.
The Ministry of Transportation and Infrastructure will carry out a safety review in order to evaluate the use of e-scooters across BC.
Lilium has commenced production of its Lilium Jet electric vertical take-off and landing (eVTOL) aircraft in Wessling, Germany.
Kapsch TrafficCom has successfully installed the mobility and safety elements for the first traffic light priority for buses in Madrid.
New York City Mayor, Eric Adams, has announced plans to install a series of new, lithium-ion battery chargers as part of a pilot programme.
ATOM Mobility covers the various challenges micromobility companies face and offer practical advice for avoiding those risks.
NYC has been awarded a federal funding grant of over 10 million USD to support ferry operations serving both Governors Island & Staten Island.
The SAM experimentation program for autonomous vehicles, led by the PFA, has concluded its work and announced a launch for its first services.
Cisco hosted an industrial IoT Transportation Leadership Summit at this year's Cisco Live US event in Las Vegas.
The US Department of Transportation (DOT) has made 1.5 billion USD in RAISE grant funding available for transportation projects.
Xwing and Daedalean AG have announced a formal collaboration to share data, knowledge, and processes in the field of machine learning and AI.
WeMove has been collaborating with Universities across the UK to improve their transport management and sustainability.
Dott is deploying AI technology from Captur to improve the parking behaviours of its e-scooter and e-bike riders.
ZeroAvia has signed an agreement with newly launched airline, Ecojet, for up to 70 of its hydrogen-electric engines.
Cubic Transportation Systems recognises the milestone that Transport for NSW has reached with the enablement of Express Mode.
Pod Point has signed a letter of intent (LOI) with EDF, continuing their partnership to drive further innovation in EV charging.
Australia's first 'Trackless Tram' has commenced trial operations in Stirling, Western Australia, following its delivery by CRRC.
Testing has begun at the University of Michigan's Mcity Test Facility to evaluate the safety of a new automated shuttle in Detroit.
On 13 October, the Ķekava bypass was officially opened, and with it the traffic management system from Kapsch TrafficCom.
Volvo Cars has launched a new Energy Solutions business that will conduct a vehicle-to-grid (V2G) pilot programme.
Hyundai Motor Group and Motional recently celebrated the opening of the new Hyundai Group Motor Innovation Centre Singapore (HMGICS).
SkedGo CEO, John Nuutinen, explores the intricate balance between customer expectations and the world of modern mobility services.
The City of Perth, Australia has announced that Beam Mobility has joined its shared e-scooter trial alongside Neuron Mobility.
Use the form opposite to get in touch with WiTricity directly to discuss any requirements you might have.