Tag: FCC

  • Inhofe, Reed urge FCC to stay and reconsider Ligado order

    Inhofe, Reed urge FCC to stay and reconsider Ligado order

    A bipartisan group of eight U.S. senators has sent a letter to the Federal Communications Commission (FCC), urging the agency to stay and reconsider the Ligado Networks order.

    U.S. Senators Jim Inhofe (R-Okla.) and Jack Reed (D-R.I.), ranking member and chairman of the Senate Armed Services Committee, led the group in sending the letter to FCC Chairwoman Jessica Rosenworcel, urging her to reconsider granting Ligado’s license modification request.

    Ligado wants to use a part of the communications spectrum in a way that risks interference with GPS reception, a move that has been decried by many industry insiders as well as other government agencies, including the departments of Defense and Transportation.

    The timing of the letter is critical, as Ligado has announced its intention to deploy a terrestrial network as soon as Sept. 30. The National Academy of Sciences plans to release a report on the FCC’s order at a public online briefing at 11 a.m. ET Sept. 9. The report will be available at National Academies Press at that same time.

    Imminent Risks

    Joining Inhofe and Reed were Sens. Tammy Duckworth (D-Ill.), Mazie Hirono (D-Hawaii), Mark Kelly (D-Ariz.), Mike Rounds (R-S.D.), Kyrsten Sinema (D-Ariz.) and Dan Sullivan (R-Alaska).

    The senators write: “Staying and reconsidering the Ligado Order is necessary to address the imminent risks associated with Ligado’s intention to ‘commence operations in the 1526-1536 Mhz band on or after September 30, 2022.’ We remain gravely concerned that the Ligado Order fails to adequately protect adjacent band operations — including those related to GPS and satellite communications — from harmful interference impacting countless military and commercial activities.

    “We urge you to set aside the Ligado Order and give proper consideration to the widely held concerns across the Executive Branch, within Congress, and from the private sector regarding the expected impact of the Ligado Order on national security and other systems,” the senators continued.

    A copy of the letter can be found here and below.

    Dear Chairwoman Rosenworcel:

    We write to you today to urge the Federal Communications Commission (FCC) to stay and reconsider the FCC’s order granting the applications of Ligado Networks LLC (Ligado) to deploy a terrestrial wireless network in the L-band satellite spectrum neighborhood, FCC 20-48, adopted April 19, 2020 (the Ligado Order). We remain extremely concerned that terrestrial L-band operations would cause unacceptable risk to Department of Defense (DOD), the Federal Government Global Positioning System (GPS), and Satellite Communications (SATCOM) operations.

    Prior to the issuance of the Ligado Order, fourteen federal agencies and departments expressed strong opposition to the applications sought by Ligado over concerns about potential harmful interference with GPS operations. In May 2020, shortly following the issuance of the Ligado Order, on behalf of the executive branch, the National Telecommunications and Information Administration (NTIA) petitioned the FCC to reconsider its decision. That filing requested that the FCC “rescind its approval of the mobile satellite service (MSS) license modification applications” granted to Ligado, which the NTIA asserted would “cause irreparable harms” to federal government GPS users.

    Staying and reconsidering the Ligado Order is necessary to address the imminent risks associated with Ligado’s intention to “commence operations in the 1526-1536 Mhz band on or after September 30, 2022.” We remain gravely concerned that the Ligado Order fails to adequately protect adjacent band operations—including those related to GPS and satellite communications—from harmful interference impacting countless military and commercial activities. We urge you to set aside the Ligado Order and give proper consideration to the widely held concerns across the Executive Branch, within Congress, and from the private sector regarding the expected impact of the Ligado Order on national security and other systems.

    We look forward to continuing to work with you to ensure that federal spectrum policy adequately protects the millions of military and commercial users who rely on L-band satellite services every day.

    Feature photo: Brian Kinney/Shutterstock.com

  • Polaris Wireless provides E911 z-axis for Schok flip phones

    Polaris Wireless provides E911 z-axis for Schok flip phones

    Image: Polaris
    Image: Polaris

    Phone users can now be located by emergency responders within one floor level inside multi-story buildings 

    Polaris Wireless, an innovator of high-accuracy software-based wireless location solutions, announces the company’s Z-axis location solution is commercially available nationwide.

    The technology — demonstrated to meet the 3-meter vertical location accuracy requirement of the Federal Communications Commission (FCC) — is integrated into Schok Gear’s newly released flip phones.

    Schok’s flip phones are typically used by consumers looking for a simple, yet powerful flip phone, that can now be accurately located in emergencies. Adding indoor and vertical location to these devices enables first responders to locate all wireless 911 callers with floor-level accuracy in multi-story buildings.

    “This is a major milestone for the 911 industry to deliver FCC-compliant Z-axis emergency location technology for users of feature phones” said Manlio Allegra, CEO and Founder of Polaris Wireless. “Working with Schok and their partners has been straightforward and it’s exciting to see for the first time the complete Z-axis solution commercially available in a flip phone.”

    “The Polaris Wireless location software was seamlessly integrated with our existing location and chipset vendors” said Samuel Gutiérrez, chairman and CEO, Schok, LLC. “Our Schok flip feature phone passed Tier I carrier acceptance testing, which for the first time included Z-axis location. Now our customers can be assured their accurate vertical location will enable first responders to find them faster in an emergency.”

    The vertical component of wireless location is critical in today’s environment when most 911 calls are placed by mobile phones and increasingly indoors, where location determination is particularly challenging. Accurate indoor wireless location is a game-changer for first responders to quickly get to where they are needed, regardless of the phone being used by callers. The Polaris Wireless Z-axis service is available seamlessly nationwide for public safety and commercial deployments.

  • 90 groups mark 2-year Ligado Order anniversary with new letter

    90 groups mark 2-year Ligado Order anniversary with new letter

    A new letter has been sent to both President Biden and congressional leadership by 90 groups opposed to Ligado’s plans to launch a terrestrial network in the L-band used by GPS.

    The letter, dated April 25, marked the two-year anniversary of a controversial decision by the U.S. Federal Communications Commission (FCC) to adopt the Ligado Order.

    The 90 groups represent companies, organizations and associations united in their grave concerns over “imminent — but preventable — harm from Ligado’s proposed terrestrial network.” These groups have serious concerns about how Ligado’s plan threatens to interfere with services provided by the GNSS, aviation and real-time environmental satellite-data communities.

    Staying the order is necessitated by the clear bipartisan will of Congress. After adoption of the order in 2020, Congress mandated an independent technical review to further assess the harmful interference that would be caused by Ligado’s proposed network and required the Department of Defense to brief federal representatives across the government “at the highest level of classification” on the potential for widespread harm from Ligado’s proposed terrestrial operations.

    On this basis alone, the FCC should stay the order to adequately consider the material new information that will be uncovered as a result of these ongoing Congressionally mandated processes, according to the letter writers.

    Their concern was made even more real following the announcement by Ligado that the company intends “to commence operations in the 1526-1536 MHz band on or after Sept. 30, 2022.”

    Image: A-Digit/DigitalVision Vectors/Getty Images
    Image: A-Digit/DigitalVision Vectors/Getty Images
  • Protect GPS from threats, foreign and domestic

    Protect GPS from threats, foreign and domestic

    Matteo Luccio
    Matteo Luccio

    Currently, 37 Global Positioning System satellites are on-orbit, with 29 of them set healthy. The system continues to provide an average 48-centimeter position accuracy. Despite this achievement, the U.S. government — specifically, the Space Force — continues to modernize GPS’s space, control and military user equipment segments.

    Modernization of the space segment is centered on the GPS III satellites, which provide up to eight times better anti-jam capability and a new L1C signal to improve user connectivity. GPS IIIF satellites, scheduled for delivery starting in early 2026, will add a search-and-rescue payload, a fully digital navigation payload, and greatly enhanced anti-jam capability for military operations.

    Modernization of the control segment is focused on the next-generation Operational Control System (OCX), scheduled to become operational early next year. OCX will sport an updated architecture to provide enhanced command-and-control capabilities and enhanced cybersecurity. Despite the pandemic, all 17 global OCX monitoring station installations were completed last summer, and most of the remaining equipment was fielded by the end of 2021.

    Twenty-four GPS satellites are broadcasting the military code (M-code). The Modernized GPS User Equipment (MGUE) program is developing military GPS receivers able to take advantage of these signals to improve defenses against spoofing and jamming while allowing navigation warfare operations.

    On the civil side, GPS modernization will play a key role in the development of the Next Generation Air Transportation System and intelligent transportation systems. The Department of Defense coordinates its GPS activities with the Department of Transportation (DOT), the Federal Aviation Administration (FAA) and many other federal departments and agencies via the National Executive Committee for Space-Based PNT. The term “space-based PNT” refers to GPS, GPS augmentations and other GNSS.

    However, this government-wide coordination and cooperation is contradicted by the stand of the Federal Communications Commission (FCC) on the matter of Ligado Networks’ applications to modify its license for terrestrial service, which it approved in 2020. The FCC’s decision is opposed by the executive branch, represented by the National Telecommunications and Information Administration (NTIA), and by 14 federal agencies and departments individually (including the departments of Defense, Transportation, State, Treasury, Justice, Interior, Agriculture, Commerce, Energy and Homeland Security), as well as by the National PNT Advisory Board and by most GNSS receiver manufacturers and aviation organizations. NTIA took the unprecedented step of filing a still-pending petition for reconsideration with the FCC. The concern is that Ligado’s proposed transmission power exceeds the thresholds established by the DOT’s April 2018 GPS Adjacent Band Compatibility study to protect GPS users from harmful interference.

    So, the list of threats to GPS now includes solar flares, spoofing, jamming, “legal jamming” by Ligado, and the Russian government’s recent threat to destroy GPS satellites. Modernizing GPS must proceed hand-in-hand with protecting it.

  • FCC, FAA and 5G

    FCC, FAA and 5G

    Last month we attempted to provide an overview of the issue concerning Federal Communication Commission’s (FCC) licensing of C-Band radio spectrum, the subsequent fielding of wireless service for 5G phones and the Federal Aviation Administration’s (FAA) announcements that potential interference could be possible between 5G signals and C-Band radio altimeters on commercial aircraft.

    Not a big deal most people might say, as faster and improved phone and data messaging on their smartphones begins to kick in, while wireless companies continue roll-out of the new 5G service. But wait – don’t some of these people fly out on vacation and then back and land at local airports, and many of us fly around the US to visit friends and family, or each week shuttle around the country doing fly-in/fly-out business?

    Well FAA and the wireless companies have largely collaborated during 5G service roll-out, and the FAA has been rapidly clearing a good number of rad-alt (radio altimeter) equipped aircraft to continue regular operations into most airports. And it seems that wireless companies have limited 5G fielding around some US airports by reducing transmitted power and/or limiting the density of 5G towers.

    But where are we now? Seems some aircraft equipped with some types of rad-alt can fly into some airports – the FAA published a list for aircraft operators and pilots identifying who can do what and where. They also published several ADs (Airworthiness Directives) which limit several aircraft types from flying into certain airports, ‘prohibiting certain operations, which require radioaltimeter data to land in low visibility conditions, when in the presence of 5G C-Band interference’. For any aircraft passengers flying into LaGuardia on a foggy day or Boston when ice-fog hangs in the air – low visibility landing capability on modern aircraft is a blessing and a wonder which allows us to travel, even in bad conditions.

    Seems that, typically – ‘many systems on (XY Type) aircraft rely on the radio altimeter, including autothrottle, ground proximity warning, thrust reversers and Traffic Collision Avoidance System,’ says one recent FAA AD.

    That’s a whole bunch of critical systems which help an aircraft land. Many experts over many years have spent whole careers supporting the process of developing safety systems for auto-land and those which assist in the manual landing of aircraft. And the FAA and other agencies around the world have made every manufacturer prove and prove again that these systems work and work extremely, reliably, well.

    Not that I’m against 5G – I have a 5G phone and I’m eagerly waiting for 5G applications to use on my phone. – the service seems to be very fast when in an area where 5G has been fielded. There are some wireless companies who have decided that 5G can by-pass cable in the distribution of TV channels – this is good stuff! Let’s have more of it!

    But why on earth do we need to even partially compromise any aircraft systems which safely land aircraft?

    Japan and France have been cited as counties in which 5G has not had any impact on the very same aircraft and their operations with which the FAA has found problems. Well, except those countries seem to have taken steps in the fielding of 5G which have protected their aircraft operations. The FAA quotes several mitigations used in those countries:

    • Lower power levels

    • Antennas adjusted to reduce potential interference to flights

    • Different placement of antennas relative to airfields

    • Frequencies with a different proximity to frequencies used by aviation equipment

    Let’s hope that FAA’s intense efforts to test and clear rad-alts under the simulated intensity of C-Band interference around airports will continue unabated and that soon we aviation nuts will begin to breath more easily.

    And let’s hope that the wireless companies cooperation, acceptance and mitigation steps – for which the whole aviation community is extremely grateful – that these very positive steps will directly lead to the whole issue fading away over time as old news.

    And then a few words about ‘the war‘ which Russia just began against its neighbor and previous member of the USSR – Ukraine has been independent from Russia since the USSR ‘dissolved’ (Wikipedia) in 1991.

    Ukrainians are pretty resilient and the news today is that a woman in Kyiv brought down a Russian drone by throwing a jar of pickles at it from her (high-rise?) balcony. This story of course isn’t verified, but it’s a small lightness in a very grim situation.

    General Atomics armed MQ-9 Reaper (Militaryanalizer.com)
    General Atomics armed MQ-9 Reaper (Militaryanalizer.com)

    And its reported that Poland just placed an urgent operational requirement for armed MQ-9 Reapers in order to better protect its Eastern border with Ukraine. The border is around 530 miles long and is the main crossing point for the thousands of refugees fleeing the Russian onslaught. Poland has apparently already taken in almost a million people seeking safety.

    Drones are now part of modern warfare and both East and West have pretty sophisticated, capable, weapon-carrying unmanned aircraft. But they also usually carry highly accurate satellite navigation and laser-guided weapons which may minimize unintended casualties – unless casualties are exactly what the Russians are after.

    Really sad state of affairs which we all may still follow in detail through news reports, even though Russia has completely shut down social media and virtually outlawed on-the-ground news reporting.

  • NextNav to deliver high-precision vertical location for 911

    NextNav to deliver high-precision vertical location for 911

    NextNav’s Pinnacle 911 will deliver Z-axis capabilities with floor-level accuracy for wireless 911 calls in more than 4,400 cities and towns across the United States.

    Photo: vichie81/iStock/Getty Images Plus/Getty Images
    Photo: vichie81/iStock/Getty Images Plus/Getty Images

    NextNav has entered into an agreement with one of the nation’s largest wireless carriers, not yet named, to deliver vertical location for Enhanced 911 (E911), using NextNav’s Pinnacle 911.

    Pinnacle 911 leverages the barometric sensors already available in phones, tablets and other devices to deliver “floor-level” altitude measurements that exceed the FCC mandate for 3-meter accuracy. The Pinnacle service compares device data to local conditions, subtracting the weather and other factors to leave behind a highly accurate altitude measurement.

    NextNav altitude stations create a hyperlocal model of environmental conditions. The precisely surveyed, high-density network delivers “floor level” real-time altitude data nationwide.

    NextNav’s dedicated, managed network makes Pinnacle available throughout metropolitan areas, providing comprehensive coverage that scales to meet a variety of use cases.

    The delivery of vertical location to public safety answering points (PSAPs) nationwide will improve emergency response in the United States. It enables first responders to accurately locate wireless 911 callers in multi-story buildings, enhancing both safety and response times, and helping to save lives.

    With NextNav’s Pinnacle 911 reaching more than 4,400 cities and towns in the United States, including 90% of buildings above three stories, implementation of the service will exceed the Federal Communication Commission’s (FCC) Z-axis requirement for nationwide E911.

    “For over two decades, one of public safety’s key needs has been 3D geolocation information — especially floor-level vertical location,” said Ganesh Pattabiraman, CEO of NextNav. “Partnering with one of the nation’s largest wireless carriers to deliver precise, Z-axis information will not only improve geolocation information for PSAPs, but save lives by reducing emergency response times by more than 80%. This adoption of our Pinnacle technology for 911 marks a historic step forward for communities around the nation, and public safety as a whole.”

    In an independent evaluation by the Cellular Telecommunications and Internet Association commissioned by the FCC, Pinnacle was able to deliver floor-level accuracy (defined as ±3 m) 94% of the time, consistently exceeding the 80% benchmark set by the FCC.

    NextNav’s Pinnacle service enables applications and technologies that rely on precise altitude data across industries, including public safety, mobile apps and gaming, lone worker tracking as well as out-of-home retail experiences.

    NextNav’s extensive list of existing partners and customers includes AT&T FirstNet, Intrepid Networks, 3am, TRX Systems, Qualcomm, Bosch, Unity and Unreal Engine.

  • US agencies tangle on possible C-band interference

    US agencies tangle on possible C-band interference

    Photo: guvendemir/E+/Getty Images
    Radio altimeters are critical in aircraft landing systems. (Getty image). (Photo: guvendemir/E+/Getty Images)

    As most GNSS industry insiders already know, the Federal Communications Commission (FCC) has licensed adjacent GNSS L1 protection frequencies to Ligado Networks (formerly Lightsquared) for its nationwide 4G-LTE network.

    Many objections emerged as expected this second time around from government agencies, industries and U.S. forces — yet the roll-out is still underway, pending actual interference occurring. This all in an attempt to find communications bandwidth for many emerging commercial radio applications.

    Now, as 5G C-Band 3.7–3.98 GHz wireless phone networks begin their FCC approved roll-out, the Federal Aviation Administration (FAA) has apparently lodged an unanticipated objection on the grounds that cross-interference could compromise aircraft radar altimeter and wireless communications that operate at 4.2 to 4.4 GHz in the C-band.

    While 5G wireless has already been operating in many parts of the world without reports of interference with aircraft systems, the FAA appears to be taking a more conservative approach to how aviation in the United States should co-exist with the new 5G phone wireless system. The FAA has proposed imposing an exclusion zone around airports for 5G wireless networks — which apparently have already been operating with reduced power in these areas — until cooperative operation has been proven.

    Now along comes a new C-band wireless network (SkyLink) aimed at providing high-integrity unmanned aircraft systems (UAS) command and control (C2). The SkyLink company uAvionix has also developed a C-band Control & Non-Payload Communications (CNPC) radio for UAS applications.

    Together with Thales, uAvionics recently tested its radio with its SkyLink radio network. The network has been qualified in accordance with the RTCA DO-377 standard for a network management system that monitors network and radio link health, and the radio has been developed to the draft FAA Technical Standard Order (TSO) C-213A to support critical UAS operations.

    The network uses new DO-362A-compliant SkyLink C-band radios, integrates certifiable aviation-grade hardware and software, uses frequency agility, and provides critical fault monitoring and control capability. The objective is to obviate the loss of the C2 link with the vehicle, and thereby enable beyond-visual-line-of-sight (BVLOS) operations without an FAA waiver.

     

    It’s unclear whether the emergence of the C-band network — approved by both the FAA and FCC — will play a role in the current phone network interoperability issue. However, uAvionix reports that several sites in the United States and offshore are either rolling out C-band SkyLink networks or evaluating doing so.

    • North Dakota already has an ISM-band SkyLink network at its UAS test site that will shortly transition to C-band.
    • The Choctaw Nation in Oklahoma under an FAA program seeks to enable BVLOS operations through a C-band C2 network.
    • New Mexico State University will use a Skylink C2 network around Las Cruces airport for small UAS (sUAS) operations and testing to overcome anticipated interference from nearby Air Force and Space Force operations.
    • The Tillamook UAS test range in Oregon has already installed the first ground site of a SkyLink network.
    • The University of Alaska at the Fairbanks UAS test site will use uAvionics radios for testing large, heavy UAS operations.
    • In Canada near the Jonesburg airport, a Skylink C2 network will support the safety case for BVLOS pipeline inspection operations for the oil industry.

    While many of these new networks are not yet fully online, the use of frequency hopping, safety-monitored C-band, and certifiable transmissions for UAS command and control appears to be moving forward rapidly. Because the FAA is supporting this testing phase, it seems inevitable that large-scale C-band network rollout for UAS C2 will happen eventually.

    5G phone networks, wireless UAS command and control, and aircraft safety systems essential for landing will need to find a way to co-exist and provide reliable, sustained service to their respective customer bases. Look for much more to develop in this ongoing tussle between industry groups and agencies who appear to have little in common, other than grudgingly sharing a crowded radio spectrum.

    Tony Murfin
    GNSS Aerospace

  • Qualcomm Location Suite increases support for emergency services

    Qualcomm Location Suite increases support for emergency services

    Photo: FilippoBacci/E+/Italy
    Photo: FilippoBacci/E+/Italy

    To comply with Federal Communications Commission (FCC) E-911 regulations, Qualcomm Technologies has enhanced its Qualcomm Location Suite to provide improved horizontal and vertical positioning information. The upgrade will help first responders better determine the floor within a multi-story building from which an emergency call was placed.

    The Qualcomm Location Suite is deeply integrated with Qualcomm’s Snapdragon Mobile Platforms and Snapdragon Modem-RF Systems that power millions of mobile devices in the U.S. The suite has supported emergency location services in the U.S. and globally for two decades.

    The change will help mobile service providers comply with new E-911 regulations requiring that the horizontal and vertical position of each wireless caller be determined with a certain level of precision.

    The Qualcomm Location Suite uses GNSS with network-based positioning and dead reckoning to deliver accurate location with speed and efficiency. GNSS assistance is delivered over cellular or Wi-Fi, LTE and 5G-NR terrestrial positioning; cellular/Wi-Fi-based location is also provided.

    When an emergency call comes in, operators rely on a combination of triangulation of wireless signals and device positioning technologies, such as GPS, to provide the position of the caller. The use of technologies in the Qualcomm Location Suite is designed to result in highly accurate positioning information and the ability to share this reliable information with first responders, allowing them to reach the precise emergency site more quickly.

    Qualcomm
    Qualcomm
  • National Academies proposes team to study FCC Ligado decision

    National Academies proposes team to study FCC Ligado decision

    NAS logoThe National Academies has announced its proposed team to examine the analysis and decision-making process by the Federal Communications Commission (FCC) in the matter of Ligado Networks.

    Individuals and organizations wishing to comment on the appropriateness of any of the members of that team or on any other aspect of this study have until Sept. 19.

    The April 2020 decision by the FCC has generated significant controversy and opposition within the public and Congress. This resulted in, among other things, seven separate petitions for reconsideration being filed, all of which are still pending, and several provisions in the National Defense Authorization Act for 2021. One of those provisions requires the Department of Defense to sponsor a study of the technical assumptions and analyses that went into the FCC’s decision to allow Ligado Networks to operate.

    According to the post on the National Academies website, the study will consider:

    1. Which of the two prevailing proposed approaches to evaluating harmful interference concerns — one based on a signal-to-noise interference protection criterion and the other based on a device-by-device measurement of the GPS position error — most effectively mitigates risks of harmful interference with GPS services and DOD operations and activities.
    2. The potential for harmful interference from the proposed Ligado network to mobile satellite services including GPS and other commercial or DOD services including the potential to affect Department of Defense (DOD) operations, and activities.
    3. The feasibility, practicality, and effectiveness of the mitigation measures proposed in the FCC order with respect to DOD devices, operations, and activities.”

    This announcement is the first significant public step for the effort which is expected to take approximately 12 to 18 months. Sources say that there will likely be public and classified versions of the report. The classified version is likely to take significantly longer to compile.

    Proposed study team members

    Chair: J. Michael McQuade

    Members:

    • Jennifer Lacroix Alvarez
    • Kristine M. Larson
    • John L. Manferdelli
    • Preston F. Marshall
    • Y. Jade Morton
    • Richard Reaser, Jr.
    • Jeffrey H. Reed
    • Nambirajan Seshadri
    • Stephen J. Stafford
    • Staff Officer: Jon Eisenberg

    Individuals and organizations wishing to comment on these proposed team members may do so through the project web page.


    Dana A. Goward is the President of the non-profit Resilient Navigation and Timing Foundation.

  • Sen. Inhofe introduces bill to make Ligado pay everyone harmed

    Sen. Inhofe introduces bill to make Ligado pay everyone harmed

    The bipartisan RETAIN GPS and Satellite Communications Act seeks to compensate all GPS and satellite communications users harmed by the April 2020 Ligado Order from the FCC.

    Sen. Inhofe with his staff introduces the RETAIN GPS and Satellite Communications Act. (Photo: RNTF}
    Sen. Inhofe introduces the RETAIN GPS and Satellite Communications Act. (Photo: RNTF)

    On June 23, Senator Jim Inhofe (R-OK) held a press event on the lawn of the U.S. Capitol. There he announced his introduction of the “Recognizing and Ensuring Taxpayer Access to Infrastructure Necessary for GPS and Satellite Communications Act” or the “RETAIN GPS and Satellite Communications Act.”

    Inhofe is the ranking member of the powerful Senate Armed Services Committee. That committee’s chair, Senator Jack Reed (D-RI), is a co-sponsor, as are Senators Tammy Duckworth (D-IL) and Mike Rounds (R-SD).

    The bill has several provisions, all of which are aimed at ensuring anyone using the frequencies the Federal Communications Commission (FCC) allocated Ligado in April 2020 will compensate all GPS and satellite communications users that are harmed.

    This would pose a significant increase in financial liability for Ligado. Under the current FCC order, is only responsible for reimbursing the federal government for costs to modify systems and replace equipment.

    Many see this provision as manifestly unfair. “The FCC is requiring Ligado to pay damages to federal equipment, so the company should also pay damages to equipment owned by ordinary Americans,” said George Washington University economics professor Diana Furchtgott-Roth.

    “With Ligado 5G transmitters overwhelming GPS signals, pipeline maintenance and systems operations would be affected. Plus, private pilots might find that navigation technology does not operate, joggers might find that their health trackers ceased to work, and firefighters might not be able to get to their destinations.”

    She estimates the cost of damage to non-federal entities to run into the billions of dollars. Furchtgott-Roth previously served as and Acting Assistant Secretary for Economic Policy at the Department of Treasury and Deputy Assistant Secretary at the Department of Transportation.

    The FCC decision was, and remains, controversial. Seven different petitions to reconsider were filed by various organizations and coalitions, including the National Telecommunications Information Agency (NTIA) on behalf of the entire executive branch.

    The FCC has yet to respond to any of the petitions, though it has denied requests to stay its order pending resolution of concerns.

    Inhofe has long been concerned about the FCC’s action. As then-chair of the Senate Armed Services Committee, he held hearings, issued press releases, and made public statements aimed at Ligado’s financial backers and potential backers. All warn of disastrous consequences should Ligado’s plan for transmissions in the bands adjacent to GPS be put into operation.

    Inhofe also ensured several provisions were included in the 2021 National Defense Authorization Act (NDAA) that addressed the FCC’s action. These include:

    • A requirement for the Department of Defense (DOD) to estimate and report to Congress the cost of damage to department systems as a result of the FCC order.
    • Prohibiting use of department funds to upgrade or modify military equipment to make it resilient to interference caused by broadcasts in the spectrum allocated (the FCC order requires this to be funded by Ligado).
    • Prohibiting DOD from contracting with any entity using the frequency bands allocated to Ligado unless the Secretary of Defense certifies the use will not interfere with GPS services.
    • Requiring the Secretary of Defense to contract with the National Academies of Sciences, Engineering, and Medicine for an independent technical review of the FCC order.

    More information about the proposed “RETAIN GPS and Satellite Communications Act” is available at the Senator’s website.


    Dana A. Goward is President of the Resilient Navigation and Timing Foundation. The foundation has petitioned the FCC to reconsider its decision regarding Ligado Networks.

  • President Biden, Congress urged to void Ligado go-ahead order

    President Biden, Congress urged to void Ligado go-ahead order

    Image: A-Digit/DigitalVision Vectors/Getty Images
    Image: A-Digit/DigitalVision Vectors/Getty Images

    In letters sent today to the White House and U.S. Congress, more than 90 organizations representing a broad range of industries urged President Biden and members of Congress to set aside the Ligado Order approved during the previous administration.

    The industries urged the president and lawmakers to work with the Federal Communications Commission (FCC) to “stay and ultimately set aside the Ligado Order,” saying that it “poses significant threats to the reliability of GPS for millions of Americans.”

    “The risk to American lives and to the American economy are simply too great,” the group wrote in the letters.

    “A year ago today, the FCC made the dangerous and misguided decision to allow Ligado Networks to operate a terrestrial network on frequencies adjacent to GPS despite threats to GPS reliability and the concerns of Congress and virtually all federal agencies that rely on GPS to protect our national and economic security,” said Dale Leibach, spokesman for the Keep GPS Working Coalition.

    “We are hopeful that under the new administration, something can be done to stop Ligado from proceeding with its plan and we are extremely thankful to the many members of Congress and government officials who have rightly pointed to the very harmful impact this decision will have on countless consumers, farmers, ranchers, pilots, boat owners, surveyors, engineers and construction companies if it is not reversed,” Leibach said.

  • Keep GPS Working Coalition supports upcoming FCC 5G vote

    Keep GPS Working Coalition supports upcoming FCC 5G vote

    Image: KENGKAT/iStock/Getty Images Plus/Getty Images
    Image: KENGKAT/iStock/Getty Images Plus/Getty Images

    Vote would make mid-band spectrum available for 5G

    The Keep GPS Working Coalition issued the following statement in support of an anticipated March 17 vote by U.S. Federal Communications Commission (FCC) commissioners that would make the 3.45–3.55 GHz band a contiguous block of “mid-band” spectrum, available for auction and deployment of high-speed wireless 5G networks.

    “The Keep GPS Working Coalition applauds the FCC for its consideration of this matter, which holds promise as a crucial step in the race to 5G and presents an opportunity for advancement without threatening the availability and reliability of GPS. We encourage the FCC to use this as an opportunity to showcase a bipartisan commitment to moving expeditiously to make this mid-band spectrum available for auction by early October.

    “The Department of Defense has also demonstrated its sustained commitment to advance the deployment of 5G services. We are grateful to the DoD for its leadership and cooperation with the FCC to make spectrum available for commercial use where it can while protecting national defense interests.

    “The spectrum being considered for auction is internationally harmonized and can be used nearly everywhere in the continental United States to the benefit of the entire country, including Keep GPS Working Coalition members. Importantly, it will advance this critical priority without the risk of harmful interference to GPS currently posed by Ligado Networks, proving that 5G and GPS can coexist.”