As for actual speeds in 2024, Starlink’s website says “users typically experience download speeds between 25 and 220Mbps, with a majority of users experiencing speeds over 100Mbps. Upload speeds are typically between 5 and 20Mbps. Latency ranges between 25 and 60 ms on land, and 100+ ms in certain remote locations.”
Changing satellite elevation angles
Another request would change the elevation angles of satellites to improve network performance, SpaceX said. “SpaceX seeks to lower its minimum elevation angle from 25 degrees to 20 degrees for satellites operating between 400 and 500 km altitude,” SpaceX told the FCC. “Reducing the minimum elevation angle in this way will enhance customer connectivity by allowing satellites to connect to more earth stations directly and to maintain connections with earth stations for a longer period of time while flying overhead.”
Meanwhile, upgrades to Starlink’s Gen2 satellites “will feature enhanced hardware that can use higher gain and more advanced beamforming and digital processing technologies and provide more targeted and robust coverage for American consumers,” SpaceX said.
SpaceX is also seeking more flexible use of spectrum licenses to support its planned mobile service and the current home Internet service. The company asked for permission “to use Ka-, V-, and E-band frequencies for either mobile- or fixed-satellite use cases where the US or International Table of Frequency Allocations permits such dual use and where the antenna parameters would be indistinguishable.”
“These small modifications, which align with Commission precedent, do not involve any changes to the technical parameters of SpaceX’s authorization, but would permit significant additional flexibility to meet the diverse connectivity and capacity needs of consumer, enterprise, industrial, and government users,” the application said.
Enlarge/ Soon you’ll be able to stream games and video for free on United flights.
United
United Airlines announced this morning that it is giving its in-flight Internet access an upgrade. It has signed a deal with Starlink to deliver SpaceX’s satellite-based service to all its aircraft, a process that will start in 2025. And the good news for passengers is that the in-flight Wi-Fi will be free of charge.
The flying experience as it relates to consumer technology has come a very long way in the two-and-a-bit decades that Ars has been publishing. At the turn of the century, even having a power socket in your seat was a long shot. Laptop batteries didn’t last that long, either—usually less than the runtime of whatever DVD I hoped to distract myself with, if memory serves.
Bring a spare battery and that might double, but it helped to have a book or magazine to read.
By 2011, the picture had changed. Wi-Fi was no longer some esoteric thing known only to nerds who built their own computers, and smartphones and tablets were on their way to ubiquity. After an aborted attempt in 2004, 2008 made in-flight Internet access a reality in North America, although the air-to-ground cellular-based system was slow, unreliable, and expensive.
Air-to-ground Internet access was maybe slightly cheaper by 2018, but it was still frustrating and slow, particularly if you were, oh, I dunno, a journalist trying to upload images to a CMS on your way back from an event. But by then, there was a better alternative—satellites. Airliners started sporting new antenna-concealing blisters, and soon, we were all streaming and posting and working our way across the skies.
Enter SpaceX
That bandwidth was courtesy of Viasat, according to all the receipts in my expense reports, but in 2022, SpaceX announced that it was adding aviation to Starlink’s portfolio. Initially, Starlink only targeted smaller regional and private jet aircraft, but now its equipment is also certified for commercial passenger planes from Airbus and Boeing and is already in use with carriers including Qatar Airways and Air New Zealand.
United says it will start testing Starlink equipment early in 2025, with the first use on passenger flights later that year. The service will be available gate-to-gate (as opposed to only working above 10,000 feet, a restriction some other systems operate under), and it certainly sounds like a superior experience to current in-flight Internet, as it will explicitly allow streaming of both video and games, and multiple connected devices at once. Better yet, United says the service will be free for passengers.
Depending on the route you fly, you may need to have some patience, though. United says it will take several years to install Starlink systems on its more than 1,000 aircraft.
AT&T and Verizon are urging telecom regulators to reject a key part of SpaceX’s plan to offer cellular service with T-Mobile, claiming the satellite system will interfere with and degrade service for terrestrial mobile broadband networks.
Filings urging the Federal Communications Commission to deny SpaceX’s request for a waiver were submitted by AT&T and Verizon this week. The plan by SpaceX’s Starlink division also faces opposition from satellite companies EchoStar (which owns Dish and Hughes) and Omnispace.
SpaceX and T-Mobile plan to offer Supplemental Coverage from Space (SCS) for T-Mobile’s cellular network using SpaceX satellites. As part of that plan, SpaceX is seeking a waiver of FCC rules regarding out-of-band emission limits.
AT&T’s petition to deny the SpaceX waiver request said the FCC’s “recent SCS order appropriately recognized that SCS deployments should not present any risk to the vital terrestrial mobile broadband networks upon which millions of Americans rely today. The Commission authorized SCS as secondary to terrestrial mobile service, correctly explaining that the SCS framework must ‘retain service quality of terrestrial networks, protect spectrum usage rights, and minimize the risk of harmful interference.'”
AT&T said SpaceX’s requested “ninefold increase” to the allowable power flux-density limits for out-of-band emissions “would cause unacceptable harmful interference to incumbent terrestrial mobile operations. Specifically, AT&T’s technical analysis shows that SpaceX’s proposal would cause an 18% average reduction in network downlink throughput in an operational and representative AT&T PCS C Block market deployment.”
Verizon predicts phone problems
Verizon’s opposition to the waiver request similarly said that SpaceX’s proposal “would subject incumbent, primary terrestrial licensee operations in adjacent bands to harmful interference.” Wireless phone performance will suffer, Verizon said:
Assuming a handset antenna gain of -3 dBi, SpaceX’s proposal still results in an interference to noise (I/N) ratio of -3 dB—well above the ITU [International Telecommunication Union] threshold SpaceX claims would protect terrestrial devices. SpaceX’s proposed margin therefore fails to adequately protect terrestrial user equipment from potential interference from SCS satellite systems, including user equipment that may not fall within the flagship performance parameters, and should be rejected.”
SpaceX likewise provides no reasonable justification for why a service intended to supplement primary terrestrial services should be allowed to cause harmful interference in contravention of the Commission’s rules and policies.
AT&T and Verizon both intend to offer Supplemental Coverage from Space as part of separate deals with AST SpaceMobile. AT&T was running ads indicating that it already offered such coverage even though it isn’t available yet, and grudgingly agreed to change the ads after a complaint from T-Mobile.
SpaceX and other entities interested in the proceeding have until August 22 to submit responses in the FCC docket. The deadline for replies to responses is August 29.
We contacted SpaceX today and will update this article if it provides a response. While the company hasn’t yet responded to the AT&T and Verizon filings, it looks like SpaceX will put forward a spirited defense.
SpaceX: Rivals will “make misleading claims”
SpaceX and T-Mobile representatives met with FCC staff on August 8, SpaceX said in a filing that describes the meeting. SpaceX and T-Mobile told FCC staff that their plan will not harm other wireless operations and predicted that competitors will make misleading claims:
With their commercial launch fast approaching, the parties also expressed an expectation that competitors would continue to make misleading claims and draconian demands to further delay Commission action and limit service to American consumers. Indeed, each time that SpaceX has demonstrated that it would not cause harmful interference to other operators—often based on those parties’ own claimed assumptions—those competitors have moved the goalposts or have claimed their analysis should not have been trusted in the first place. These operators’ shapeshifting arguments and demands should be seen for what they are: last-minute attempts to block a more advanced supplemental coverage partnership and siphon sensitive information to aid their own competing efforts. The Commission must not allow competitive gamesmanship to stand in the way of lifesaving service for American consumers.
In addition to requesting a waiver, SpaceX’s filing argued that the FCC’s emissions limit is too strict and should be changed. The FCC should “reconsider its inappropriately uniform out-of-band emissions PFD limit of -120 dBW/m2/MHz, which is an order of magnitude more restrictive than necessary to protect terrestrial operations adjacent to the PCS G Block,” SpaceX wrote. “The limit does not take into account the role of frequency in determining appropriate PFD limits to meet the internationally accepted -6 dB interference-to-noise (‘I/N’) threshold.”
T-Mobile told the FCC in last week’s meeting that “it has both the strong incentive and the obligation to ensure that out-of-band emissions do not cause harmful interference” because it has licenses in both the PCS G Block and adjacent PCS C Block. “Based on its review of SpaceX’s waiver request and petition for reconsideration, T-Mobile reiterated its confidence that the proposed operations in the PCS G Block would not cause harmful interference to adjacent-band terrestrial operations, including T-Mobile’s own adjacent-band operations,” the filing said.
SpaceX said it has launched over 100 satellites with direct-to-cellular capabilities so far, and that both it and T-Mobile “have made significant progress testing the early network, demonstrating the robust capabilities of the system.”
Enlarge/ A Starlink terminal at the Everything Electric London conference on March 28, 2024 in England.
Getty Images | John Keeble
A report published today describes how Russia obtained Starlink terminals for its war in Ukraine despite US sanctions and SpaceX’s insistence that Russia hasn’t bought the terminals either directly or indirectly.
The Wall Street Journal report describes black market sales to Russians and a Sudanese paramilitary group called the Rapid Support Forces (RSF). US Secretary of State Antony Blinken recently determined that the Rapid Support Forces and allied militias committed war crimes and are responsible for ethnic cleansing in Darfur.
The WSJ said it “tracked Starlink sales on numerous Russian online retail platforms,” “interviewed Russian and Sudanese middlemen and resellers, and followed Russian volunteer groups that deliver SpaceX hardware to the front line.”
The WSJ described Oleg, a salesman at Moscow-based online retailer shopozz.ru, who “supplemented his usual business of peddling vacuum cleaners and dashboard phone mounts by selling dozens of Starlink internet terminals that wound up with Russians on the front lines in Ukraine.”
Starlink terminals reportedly provide a technical upgrade to Russian troops whose radio communications were being jammed or intercepted by Ukraine troops.
“In Russia, middlemen buy the hardware, sometimes on eBay, in the US and elsewhere, including on the black market in Central Asia, Dubai or Southeast Asia, then smuggle it into Russia,” the report said. “Russian volunteers boast openly on social media about supplying the terminals to troops. They are part of an informal effort to boost Russia’s use of Starlink in Ukraine, where Russian forces are advancing.”
These “middlemen have proliferated in recent months to buy the user terminals and ship them to Russian forces,” the report said.
Lawmakers doubt SpaceX compliance with sanctions
Today’s report came about a month after two Democratic lawmakers sent a letter to SpaceX alleging that Russia’s use of Starlink in Ukraine raises questions about SpaceX’s “compliance with US sanctions and export controls.”
“We are concerned that you may not have appropriate guardrails and policies in place to ensure your technology is neither acquired directly or indirectly, nor used illegally by Russia,” said the letter from US Reps. Jamie Raskin (D-Md.) and Robert Garcia (D-Calif.).
In February, SpaceX CEO Elon Musk denied what he called “false news reports [that] claim that SpaceX is selling Starlink terminals to Russia,” saying that, “to the best of our knowledge, no Starlinks have been sold directly or indirectly to Russia.”
We contacted SpaceX today and will update this article if we get a response.
Russia has said it doesn’t allow Starlink use. A spokesperson for Russian President Vladimir Putin said in February that Starlink “is not certified [in Russia], therefore it cannot and is not officially supplied here. It cannot be used in any way.”
The Journal report said that US adversaries have been able to connect to satellites after dealers who sell Starlink terminals “register the hardware in countries where Starlink is allowed.” SpaceX uses geofencing to limit Starlink access, and Musk has said that “Starlink satellites will not close the link in Russia.” But blocking Russian use of Starlink in Ukraine without affecting Ukraine troops’ use of the service would likely be more complicated.
Ukraine, Sudan ask SpaceX for help
Ukraine’s top military-intelligence officer, Lt. Gen. Kyrylo Budanov, said in an interview that “Russian invasion forces in his country are using thousands of Starlink satellite Internet terminals, and that the network has been active in occupied parts of Ukraine for ‘quite a long time,'” according to a WSJ report in February.
The Journal’s new report states that “Ukrainian officials said they contacted SpaceX about Russian forces using Starlink terminals in Ukraine and that they are working together on a solution.” The report also quotes US Assistant Secretary of Defense for Space Policy John Plumb as saying that the US is “working with Ukraine and we’re working with Starlink” on how to end Russian use of Starlink in Ukraine.
The RSF reportedly uses Starlink in fighting against government forces. “Sudanese military officials and unauthorized Starlink dealers said in interviews that Abdelrahim Hamdan Dagalo, the RSF’s deputy commander, has overseen the purchase of hundreds of Starlink terminals from dealers in the United Arab Emirates,” the WSJ report said.
The report also said that “Sudanese authorities have contacted SpaceX and requested help in regulating the use of Starlink, including by allowing the military to turn off service areas where it was helping the RSF. Starlink never responded to the request, Sudanese officials said.”
Starlink’s mobile ambitions were dealt at least a temporary blow yesterday when the Federal Communications Commission dismissed SpaceX’s application to use several spectrum bands for mobile service.
SpaceX is seeking approval to use up to 7,500 second-generation Starlink satellites with spectrum in the 1.6 GHz, 2 GHz, and 2.4 GHz bands. SpaceX could still end up getting what it wants but will have to go through new rulemaking processes in which the FCC will evaluate whether the spectrum bands can handle the system without affecting existing users.
The FCC Space Bureau’s ruling dismissed the SpaceX application yesterday as “unacceptable for filing.” The application was filed over a year ago.
The FCC said the SpaceX requests “do not substantially comply with Commission requirements established in rulemaking proceedings which determined that the 1.6/2.4 GHz and 2 GHz bands are not available for additional MSS [mobile-satellite service] applications.”
But the FCC yesterday also issued two public notices seeking comment on SpaceX petitions to revise the commission’s spectrum-sharing rules for the bands. Dish Network and Globalstar oppose the SpaceX requests, and SpaceX will have to prove to the FCC that its plan won’t cause harmful interference to other systems.
T-Mobile deal still on, but SpaceX wants more capacity
The FCC order won’t stop SpaceX’s partnership with T-Mobile, which uses T-Mobile’s licensed spectrum in the 1.9 GHz band. In January, Starlink demonstrated the first text messages sent between T-Mobile phones via one of Starlink’s low-Earth orbit satellites. Texting service for T-Mobile users is expected sometime during 2024 with voice and data service beginning later.
But SpaceX wants to use more spectrum bands to increase capacity in the US and elsewhere. Space has Starlink partnerships with several carriers outside the US.
SpaceX filed its application in February 2023. “Granting this application will enable SpaceX to augment its MSS capabilities and leverage its next-generation satellite constellation to provide increased capacity, reduced latency, and broader service coverage for mobile users across the United States and the world, including those users underserved or unserved by existing networks,” the application said.
Dish Network owner EchoStar is angry that the FCC is still entertaining SpaceX’s request for the 2 GHz band. “The FCC should immediately dismiss SpaceX’s petition for rulemaking without seeking comment, because the mere action of seeking comment would provide it with undeserved credibility and threaten the certainty that has allowed EchoStar to innovate in this band leading to significant public interest benefits,” the company told the FCC yesterday.
Enlarge/ Illustration of AST SpaceMobile’s cellular satellite.
AST SpaceMobile
Google, AT&T, and Vodafone are investing $206.5 million in AST SpaceMobile, a Starlink competitor that plans to offer smartphone service from low-Earth-orbit satellites.
This is the first investment in AST SpaceMobile from Google and AT&T, while Vodafone had already put money into the satellite company. AST SpaceMobile announced the funding in a press release on Thursday and announced a $100 million public offering of its stock on the same day.
“Vodafone and AT&T have placed purchase orders for network equipment from AST SpaceMobile to support planned commercial service,” the satellite company said. Google has meanwhile “agreed to collaborate on product development, testing, and implementation plans for SpaceMobile network connectivity on Android and related devices.” AST, which has one very large test satellite in orbit, previously received investments from Rakuten, American Tower, and Bell Canada.
SpaceX subsidiary Starlink has deals with T-Mobile in the US and several carriers in other countries for satellite-to-smartphone service. T-Mobile is expected to offer Starlink-enabled text messaging this year, with voice and data service beginning sometime in 2025.
Though AT&T hadn’t previously invested in AST SpaceMobile, the companies were already working together. AT&T is leasing spectrum in the 700 MHz and 850 MHz bands to AST SpaceMobile. They plan “to provide mobile broadband to unserved and underserved areas covered by the Leased Spectrum,” the companies told the Federal Communications Commission in an application last year.
Enlarge/ AST SpaceMobile’s BlueWalker 3 test satellite, which is 693 square feet in size.
AST SpaceMobile
For hard-to-reach areas
Satellite-to-smartphone technology is generally seen as a supplement to cellular networks in hard-to-reach areas. “Because AST’s technology can focus satellite coverage in discrete portions of licensed areas, it does not need a nationwide swath of terrestrial mobile spectrum that a mobile network operator licensee has left fallow. Rather than displacing terrestrial network facilities nationwide, AST’s coverage will be complementary to AT&T’s extensive terrestrial network coverage,” the companies’ FCC filing said.
In April 2023, the companies announced that they completed the first two-way voice calls using AST SpaceMobile’s test satellite with standard mobile phones. “The first voice call was made from the Midland, Texas area to Rakuten in Japan over AT&T spectrum using a Samsung Galaxy S22 smartphone,” the announcement said.
In September 2023, AST SpaceMobile said it made “the first-ever 5G connection for voice and data between an everyday, unmodified smartphone and a satellite in space” and that it achieved a download rate of 14Mbps.
Five satellites should launch soon
AST SpaceMobile’s prototype satellite launched from a SpaceX rocket in September 2022. AST’s early plans detailed in 2020 called for 243 satellites overall, and its first five satellites for commercial operations are expected to launch by March 31, 2024. AST is manufacturing the satellites at its Texas facilities.
The prototype satellite delivers data over 5 MHz channels. “For the company’s planned operational satellites, beams are designed to support capacity of up to 40 Mhz, potentially enabling data transmission speeds of up to 120Mbps,” the company said.
An AST description of its satellite says it has “a large surface area of phased-array antennas, which work together to electronically form, steer, and shape wireless communication beams into cells of coverage,” similarly to cell towers on the ground. AST says its BlueWalker 3 test satellite is 693 square feet.
AST said it has “over 40 agreements and understandings with mobile network operators globally, who collectively service over 2 billion subscribers.” Besides Vodafone and AT&T, these “agreements and understandings” are with firms including Rakuten Mobile, Bell Canada, Orange, Telefonica, TIM, MTN, Saudi Telecom Company, Zain KSA, Etisalat, Indosat Ooredoo Hutchison, Telkomsel, Smart Communications, Globe Telecom, Millicom, Smartfren, Telecom Argentina, Telstra, Africell, and Liberty Latin America.
While Starlink already has over 5,000 satellites delivering home Internet service and plans to launch tens of thousands more, it isn’t too far ahead of AST SpaceMobile in terms of cellular-enabled satellites. SpaceX launched the first six Starlink satellites that can provide cellular transmissions to standard LTE phones a few weeks ago and demonstrated the technology with text messages sent between T-Mobile phones.
Enlarge/ Starlink satellites with direct-to-cell capability.
SpaceX
SpaceX is showing off the first text messages sent between T-Mobile phones via one of Starlink’s low Earth orbit satellites. “On Monday, January 8, the Starlink team successfully sent and received our first text messages using T-Mobile network spectrum through one of our new Direct to Cell satellites launched six days prior,” a Starlink update said.
SpaceX last week launched the first six Starlink satellites that can provide cellular transmissions to standard LTE phones. The service from what Starlink calls “cellphone towers in space” is expected to provide text messaging sometime this year for customers of T-Mobile in the US and carriers in other countries, with voice and data service beginning sometime in 2025.
SpaceX posted a photo of the two iPhones that exchanged the texts, which included messages such as “Such signal” and “Much wow.” The process that allowed those texts to be sent was pretty complicated, Starlink said.
“Connecting cell phones to satellites has several major challenges to overcome,” Starlink said. “For example, in terrestrial networks cell towers are stationary, but in a satellite network they move at tens of thousands of miles per hour relative to users on Earth. This requires seamless handoffs between satellites and accommodations for factors like Doppler shift and timing delays that challenge phone to space communications.”
Mobile phones have “low antenna gain and transmit power,” making it “incredibly difficult” to communicate with satellites hundreds of kilometers away, the company said. But Starlink’s new satellites “are equipped with innovative new custom silicon, phased array antennas, and advanced software algorithms that overcome these challenges and provide standard LTE service to cell phones on the ground.”
The satellite-to-phone service should work just about anywhere on the planet, but there would be no point in using it when you can connect to a ground-based cellular tower. As SpaceX CEO Elon Musk pointed out, the limited bandwidth means that “it is not meaningfully competitive with existing terrestrial cellular networks.”
T-Mobile said last week that field testing of Starlink satellites with the T-Mobile network will begin soon but did not announce a start date for actual service. T-Mobile said the Starlink connectivity will be useful in areas of the US where it has no coverage “due to terrain limitations, land-use restrictions,” and other factors.
SpaceX is furious at the Federal Communications Commission after the agency refused to reinstate an $886 million broadband grant that was tentatively awarded to Starlink during the previous administration.
The FCC announced yesterday that it rejected SpaceX’s appeal. “The FCC followed a careful legal, technical and policy review to determine that this applicant had failed to meet its burden to be entitled to nearly $900 million in universal service funds for almost a decade,” FCC Chairwoman Jessica Rosenworcel said.
In December 2020, shortly before the departure of then-FCC Chairman Ajit Pai, Starlink was tentatively awarded $885.51 million in broadband funding from the Rural Digital Opportunity Fund (RDOF). But the satellite provider still needed FCC approval of a long-form application to receive the money, which is meant to subsidize deployment in areas with little or no high-speed broadband access.
The Rosenworcel FCC rejected the long-form application in August 2022, and SpaceX appealed the decision the next month. The FCC also rejected the long-form application of LTD Broadband, a fixed wireless provider that was originally slated to get $1.3 billion. LTD recently renamed itself “GigFire.”
The Starlink and LTD rejections were the two biggest changes to a $9.2 billion round of grants that, in the Rosenworcel FCC’s words, fueled “complaints that the program was poised to fund broadband to parking lots and well-served urban areas.” The FCC denied LTD’s appeal last week and proposed a fine of $21.7 million for defaulting on grant bids.
SpaceX “disappointed and perplexed”
After yesterday’s Starlink denial, SpaceX quickly filed a response saying the company “is deeply disappointed and perplexed by the Commission’s decision to exclude SpaceX’s Starlink satellite broadband service from the Rural Digital Opportunity Fund.”
“This decision directly undermines the very goal of RDOF: to connect unserved and underserved Americans,” SpaceX told the FCC. “Starlink is demonstrably one of the best options—likely the best option—to accomplish the goals of RDOF. Indeed, Starlink is arguably the only viable option to immediately connect many of the Americans who live and work in the rural and remote areas of the country where high-speed, low-latency Internet has been unreliable, unaffordable, or completely unavailable, the very people RDOF was supposed to connect.”
We asked SpaceX whether it plans to appeal in court and will update this article if we get an answer.
Starlink’s grant was intended to subsidize deployment to 642,925 rural homes and businesses in 35 states. The August 2022 ruling that rejected the grant called Starlink a “nascent LEO [low Earth orbit] satellite technology” with “recognized capacity constraints.” The FCC questioned Starlink’s ability to consistently provide low-latency service with the required download speeds of 100Mbps and upload speeds of 20Mbps.
In rejecting SpaceX’s appeal, yesterday’s FCC order said the agency’s Wireline Competition Bureau “followed Commission guidance and correctly concluded that Starlink is not reasonably capable of offering the required high-speed, low-latency service throughout the areas where it won auction support.”
SpaceX CEO Elon Musk has acknowledged Starlink’s capacity limits several times, saying for example that it will face “a challenge [serving everyone] when we get into the several million user range.”
