pierredv + ngso   79

SpaceX proposes lower orbit for its 4,000+ satellite constellation | FierceWireless Nov 2018
"SpaceX is asking the FCC to approve modifications to its license to launch and operate a constellation of non-geostationary (NGSO) satellites, reducing the altitude from 1,150 kilometers to a new altitude of 550 km.

The change in altitude will result in lower latency for the satellites—as well as allow SpaceX to speed up the deployment of its constellation."

"The revised plan calls for 16 fewer satellites—to 4,409. It would also allow for SpaceX to surpass the deployment milestones laid out in its license. Under commission rules, it’s supposed to begin operation of at least half of its authorized satellites no later than March 29, 2024. But the new target calls for launching its first batch of satellites before the end of 2019."

"The company explained that by operating closer to the Earth, SpaceX would be able to reduce the latency of its communications signals to as low as 15 milliseconds, “at which point it would be virtually unnoticeable to almost all users.” Under the previous altitude plan, the latency was expected to be on the order of 25-35 milliseconds."

"Moving to the lower altitude also increases the space between its satellites and those of other large proposed NGSO constellations, including OneWeb, Boeing and Telesat."
FierceWireless  SpaceX  NGSO  FCC 
2 days ago by pierredv
Viasat shrinks MEO constellation plans - SpaceNews.com Nov 2018
"... another satellite operator is reducing the size of its proposed constellation. Viasat of Carlsbad, California, modified its design for a medium-Earth-orbit constellation that would consist of 20 telecom satellites instead of 24 as originally envisioned, the FCC said Nov. 2."

The smaller constellation would orbit in four orbital pathways in 8,200-kilometer orbits, with five satellites per pathway"

"Viasat is one of several operators to have modified its constellation plans since 2016. The new approvals SpaceX is seeking cover an additional 7,518 satellites in V-band, a rarely used spectrum.

Telesat wants to double its approval, adding another 117 satellites that, like SpaceX, would use V-band spectrum.

OneWeb also asked the FCC to OK 1,200 more satellites in March, although its new request has not yet been scheduled for a vote. "
Viasat  NGSO  satellite  MEO  FCC  constellations 
9 days ago by pierredv
Musk shakes up SpaceX in race to make satellite launch window: sources | Reuters Oct 2018
"Within hours of landing [in June 2018], Musk had fired at least seven members of the program’s senior management team at the Redmond, Washington, office, the culmination of disagreements over the pace at which the team was developing and testing its Starlink satellites, according to the two SpaceX employees with direct knowledge of the situation. "

"But the program is struggling to hire and retain staff, the employees said"

"Among the managers fired from the Redmond office was SpaceX Vice President of Satellites Rajeev Badyal, an engineering and hardware veteran of Microsoft Corp and Hewlett-Packard, and top designer Mark Krebs, who worked in Google’s satellite and aircraft division, the employees said."

"The management shakeup followed in-fighting over pressure from Musk to speed up satellite testing schedules, one of the sources said."
SpaceX  Reuters  satellite  NGSO 
15 days ago by pierredv
Does the satellite industry have antenna deficit disorder? - SpaceNews.com Oct 2018
"To connect the masses, megaconstellations will need mega antennas mega cheap. Antenna makers need mega orders to make that happen."

David Hartshorn: “There are business plans, big ones, hanging out there that depend if not entirely then at least to a very large extent on the availability of high-performance, low-cost, high-volume, low-profile antennas,”

"Northern Sky Research expects companies to ship 1.8 million flat panel antennas between now and 2027 with revenues topping $8 billion for the decade."

"For years, antenna manufacturers have produced high-performance alternatives to gimbaled parabolic antennas pointed at geostationary communications satellites. Price tags range from a few thousand dollars to $250,000 depending on the application."

"To work with low Earth orbit constellations, the antennas need to track two or more satellites simultaneously — something parabolic dishes can’t do. They also need to be small and durable, prevent signal interference, instantly find satellites and secure links, degrade gracefully and have great signal efficiency.

“It turns out that according to the laws of physics, you cannot do all those things at the same time,” said Ralph Brooker, president of SatProf"

John Finney, Isotropic: “What OneWeb wants in terms of target price is in the very low hundreds of dollars. We see a way to get there.”
satellite  constellations  antennas  NGSO  SpaceNews  business  NSR 
28 days ago by pierredv
Antenna builder ThinKom makes push for constellation market - SpaceNews.com Oct 2018
"ThinKom tested a phased array antenna with SES in August, practicing links with O3b satellites in medium Earth orbit as they rose over the horizon and then tracking them for 30 minutes each.

"Last month, ThinKom and Telesat announced plans to test an antenna with a Telesat prototype satellite in low Earth orbit (LEO) and to collaborate on business-grade terminals for Telesat’s planned 120-satellite LEO constellation. "

"The absence of such flat-panel antennas, as constellations start launching and high-throughput geostationary satellites grow in number, has satellite operators “all pretty much desperate to see somebody bring a solution to market,” according to Chris Quilty, president of Quilty Analytics. "

"ThinKom is best known for its ThinAir Ku3030 antennas that inflight connectivity provider Gogo builds into its 2Ku airplane Wi-Fi terminals. ... Bill Milroy, ThinKom’s chairman and chief technical officer, said his company intends to use the same phased array technology it has used for antennas on aircraft "

"SES is attempting to cultivate commercially viable flat-panel antennas for O3b mPower, its next-generation constellation, having contracted with Viasat, Alcan Systems and Isotropic Systems last year to build electronically steered antennas. "

"ThinKom’s approach differs from SES’s other three partners in that its antennas don’t use electronic steering, despite being relatively flat. The aeronautical antenna it is testing with SES is 20 centimeters thick and uses mechanical systems to track satellites. "

"Whereas a ThinKom antenna requires around half a second to switch satellites, an electronically steered antenna has the potential to switch in microseconds"

"ThinKom is targeting $10,000 for enterprise, or business-grade, terminals. ... For consumer terminals, ThinKom is targeting “sub-$1,000” prices."
ThinKom  SES  MEO  NGSO  satellite  antennas  Telesat  O3b  LEO 
29 days ago by pierredv
LeoSat and partners put satellites on a diet - SpaceNews.com Oct 2018
"“If we can get the number of required launches down from 14 to seven or from 12 to six, we could make savings that take the $3.5 billion plus down to close to $3 billion,” Rigolle said. “If the per unit cost of building the satellites could be pushed down by a few million a piece, it chips at the cost and improves the total viability of the project.”"
LeoSat  business  satellite  SpaceNews  NGSO  constellation 
4 weeks ago by pierredv
Analysts see demand for two or three megaconstellations - SpaceNews.com Oct 2018
"While there may be enough customer demand for two or three megaconstellations, it will be difficult for the ventures to attract enough financing, according to analysts speaking at the Satellite Innovation conference here."

Chris Quilty, president of Quilty Analytics, a financial services firm based in St. Petersburg, Florida, sees demand for two or three constellations serving distinct markets like broadband and machine-to-machine communications."

"Nick Flitterman, co-founder and telecommunications head for Portland Advisers, a financial advisory firm based in the United Kingdom and Hong Kong, sees global demand for two or three megaconstellations but said it will be difficult to finance that many."
SpaceNews  satellite  NGSO  constellations  investing  finance  business 
5 weeks ago by pierredv
Audacy customer MOUs top $100 million - SpaceNews.com Oct 2018
"Customers for Audacy, a Silicon Valley startup, have signed memoranda of understanding to spend more than $100 million annually on the company’s proposed inter-satellite data relay network"

"Audacy plans to send satellites into medium Earth orbit in 2020 to provide data relay services for satellites, human spaceflight missions and launch vehicle operators. The Mountain View, California, company has raised about $11.1 million to date"

"Audacy is constructing two ground stations, which it plans to begin operating in April 2019. One is near the firm’s Mountain View headquarter. The second is in Singapore"
SpaceNews  Audacy  NGSO  satellite  business 
6 weeks ago by pierredv
Can OneWeb Cross the Valley of Death? - NSR Sep 2018
Blog doesn't answer the question the headline poses - but hints No.

"OneWeb has accomplished a significant feat by raising the most funding – $1.7 billion – offering it a tremendous benefit over other similar LEO constellations. However, despite this notable amount, the question remains – is it enough to support and sustain this mega constellation, or is it just buzz and hype?"

"NSR considers OneWeb is currently placed between the technology transfer and product launch phases and will soon enter the said valley [of death]."

"NSR estimated a total CAPEX of over $5 Billion for OneWeb- which is $2 billion over the originally expected total CAPEX of around $3 billion. Considering this CAPEX value, a total available funding amount of $1.7 billion to date and a valuation of capacity as well as service revenue streams from various applications, NSR estimates a negative ROI over the next 10 years, which is attenuated further with the recently announced (and later retracted) confusing news of a $6 billion associated CAPEX."

"The dismissal of landing right requests (such is the case in Russia) also poses a significant threat to the success of OneWeb, as does the heavy recurring cost of fleet replenishment every 7-10 years."

"Market readiness, however, is a probable barrier for OneWeb."
NSR  OneWeb  business  satellite  NGSO  LEO 
8 weeks ago by pierredv
NSR Report: Non-GEO Satellites to Dominate Supply, Adding over 25 Tbps in Next Decade - NSR
"NSR’s Global Satellite Capacity Supply & Demand, 15th Edition report finds Non-GEO Satellite (NGSO) annual capacity revenues will skyrocket to $4 billion by 2027. These networks offer a new set of attributes for customers such as low latency, full mesh connectivity, or high-bandwidth per terminal, and will be key to unlocking new greenfield markets. However, CAPEX exposure is massive, and new revenue drivers might not be enough to pay back initial investments. Consequently, there is a risk of price disruption for the entire industry if these new players dump capacity to poach customers from legacy verticals."
NSR  market-research  satellite  business  NGSO 
8 weeks ago by pierredv
The FSS sector and the LEO-GEO stalemate - SpaceNews.com Sep 2018
"Orders for traditional geostationary satellites have fallen precipitously over the past three years. Industry counts show orders dropped from 26 GEO orders in 2014, to 15 in 2016 and seven in 2017. Most observers don’t believe 2018 will be much better. There are many reasons for the decline, ranging from a plateau in satellite video distribution to rapidly evolving high-throughput satellite (HTS) and digital payload technology that has created overcapacity in some segments and makes operators anxious about ordering long-life satellites that may soon be obsolete. These risks might be manageable if not for the planned low Earth orbit (LEO) constellations, with their promises of lower pricing, amplifying pricing and capacity concerns."

"The lack of clarity over the satellite industry’s future has led to an incredible standoff. On the one hand, the satellite industry is in a situation where investment in geostationary satellites is stalled due to uncertainties over the long-term industry outlook, particularly when LEO constellations enter. On the other hand, investment in LEO constellations is stalled due to shorter-term concerns about the availability of affordable consumer hardware."

"Will a LEO antenna manufacturer emerge to meet the performance and price targets needed to break this deadlock or will there be a realization that the technical challenges are insurmountable? "
LEO  GEO  opinion  NGSO  satellite  antennas  Armand-Musey 
8 weeks ago by pierredv
LEO-HTS Constellations Present Great Promise but Challenging Business Cases - NSR May 2018
"NSR’s industry-first Satellite Constellations: A Critical Analysis report, released today, forecasts a mixed outcome for large HTS constellations. NSR predicts two, out of the five Non-GEO HTS constellations analyzed, do not have a viable business case and will not be sustainable, if launched. The remaining three will generate 12% of overall satcom market revenues over the next decade. Costly systems and replenishment cycles, matched against funding challenges, demand questions, and extraordinary technical and regulatory complexity, will separate contenders from pretenders in the high stakes constellations market."

“The reduced launch and manufacturing costs are indeed enabling trends; however, there are still many challenges, like those associated with ground infrastructure costs and acquisition of landing rights, that must be overcome to build a feasible business model. The benefits from economies of scale, which mega-constellations rely upon, are generally not enough to counter these other challenges,”
NSR  market-research  business  satellite  HTS  NGSO  satellite-constellations 
8 weeks ago by pierredv
Amid concerns, OneWeb gets vague about constellation’s cost - SpaceNews.com
Jeff Foust's summary: "Speaking at World Satellite Business Week, Eric Béranger, president and COO of OneWeb, would no longer affirm that the company's satellites would cost $500,000 each, instead saying the satellites would cost less than $1 million. Other analysts project the satellites to cost $700,000 to $900,000 each once large-scale production gets underway. OneWeb, meanwhile, has assigned the CEO role that Béranger prevuously had to Adrian Steckel, making Steckel OneWeb's fourth CEO is as many years. "

"OneWeb in 2015 set the goal of building 900 satellites for $500,000 each or less, with the total estimated cost of building, launching and operating the constellation at $3.5 billion. ... Asked by SpaceNews if the satellites could still come in under $500,000 each, Béranger said only that they were now “below $1 million” per unit. Industry analysts who follow OneWeb said as recently as August that OneWeb is looking at roughly $700,000 to $900,000 per satellite"

"OneWeb has raised $1.7 billion in equity since 2015, with Japanese tech giant SoftBank providing $1 billion of that total."
SpaceNews  OneWeb  satellite  NGSO  business  investing 
9 weeks ago by pierredv
Kepler, Phasor test flat panel antenna with LEO cubesat - SpaceNews.com Sep 2018
"Startups Kepler Communications and Phasor said Sept. 10 that they successfully demonstrated a link between Kepler’s cubesat and a Phasor flat panel antenna."

The test, according to the companies, “represents the first example of a wideband [low-Earth orbit] satellite to have been auto-acquired, auto-tracked, and communicated with, by a commercial flat panel, electronically-steerable antenna.”

"the tests show the company should be able to achieve a 10 Mbps downlink, 10 Mbps uplink connection with a 30-square-centimeter Phasor antenna."
SpaceNews  Kepler  Phasor  satellite  NGSO  antennas  LEO 
9 weeks ago by pierredv
Kepler Communications opens launch bids for Gen-1 LEO constellation - SpaceNews.com, aug 2018
"Kepler Communications announced Aug. 28 it is accepting bids from launch providers to orbit its first-generation constellation of up to 15 cubesats, but with the stipulation that the launches must happen within two years."

"Kepler plans to operate 140 satellites in low Earth orbit to provide Internet of Things connectivity to devices on the ground and to act as a relay network for other satellites by using intersatellite links. Mitry said Kepler intends to scale up fast, with the Gen-1 constellation in service by late 2020 or early 2021, a second generation of up to 50 satellites by the end of 2021, and the full 140-satellite constellation operational by the end of 2022. "

"Kepler has yet to sign a manufacturing agreement for the full 140 satellite constellation."

"Each satellite will have a mass of 12 to 15 kilograms ... the Gen-1 satellites will be slightly heavier than the prototypes because those lack intersatellite links"

"Kepler has also yet to determine if its fleet will have on-board propulsion, he said. From an altitude between 520 and 600 kilometers, Kepler’s satellites will have a design life of three to five years, he said. "
Kepler  NGSO  launch  satellite  IoT 
10 weeks ago by pierredv
Cruising for Higher Throughputs - Northern Sky Research Aug 2018
"From 300 Mbps to MSC cruises announced by Marlink in June 2017 to the most recent 3.2 Gbps of throughput delivered to a Carnival Cruise Line Ship in May of 2018, there are few satellite sectors that are seeing such record levels of growth to a customer’s single location . With over 570 Gbps of throughput growth expected between 2017 – 2027 according to NSR’s Maritime SATCOM Report, what applications are driving this growth? "
NSR  satellite  broadband  maritime  GSO  NGSO 
august 2018 by pierredv
Viasat’s Dankberg explains medium Earth orbit thinking, global expansion strategy - SpaceNews.com Aug 2018
"Viasat is still working on a medium-Earth-orbit satellite constellation idea revealed almost two years ago, but has not finalized what that system would look like, Mark Dankberg, CEO of Viasat, said Aug. 9. Viasat is “putting a bunch of work” into optimizing a 24-satellite system disclosed in a 2016 application to the U.S. Federal Communications Commission that would provide connectivity using Ka-band and the lesser used V-band spectrum. "

“The direction we’ve been looking at is really looking at the non-GEO and the GEO as an integrated system, and that relieves that constraint. We don’t have to use the non-GEO to provide coverage everywhere.”

Viasat’s approach to globalization is to “really understand each market and be able to deliver services to end users in those markets, not just sell to intermediaries,” [Mark Dankberg] said.
SpaceNews  Viasat  MEO  NGSO  satellite  business 
august 2018 by pierredv
MEO startup Methera plans “high density” HTS constellation - SpaceNews.com aug 2018
"In medium Earth orbit, the only system providing satellite broadband today is SES Networks’ constellation of 16 O3b satellites. A British startup with its own 16-satellite constellation idea wants to change that. Methera Global Communications estimates it needs $500 million to build and launch a constellation of satellites each equipped with 40 gigabits of capacity to beam down Ka-band connectivity to highly concentrated areas. If successful, Methera will launch its first spacecraft in 2022, with service starting that same year."

" “Instead of trying to put a thin veneer of coverage around the globe, what we’re doing is looking at a small number of targets where we will put lots of capacity,” [CEO Chris McIntosh] said. Methera’s 700-kilogram satellites — the same mass as the first-generation O3b satellites — will hone capacity on extremely specific locations, targeting a small number of high-value customers "

"But positioning the satellites in medium Earth orbit means customers of Methera’s system will need advanced antennas that can track the satellites as they move relative to the Earth’s surface. ... O3b faced the same challenge and, finding flat panel, electronically steerable antennas commercially unavailable, started service in 2014 with terminals using two dishes ensuring a constant link for uninterrupted service. ... Methera is focusing initially on parabolic antennas as well"

"Methera has a pending application with the U.K.’s telecom regulator Ofcom to license its low-latency satellite system, McIntosh said. The company has not applied for market access in the U.S. with the Federal Communications Commission because the U.S. is not an area of initial focus, he said. "

"16 satellites in 18,000-kilometer polar orbits — about 2,000 kilometers below the U.S. Air Force’s GPS satellites"
SpaceNews  Methera  UK  NGSO  MEO  satellite  broadband  O3b  antennas  Ofcom 
august 2018 by pierredv
Enabling a GEO-NGEO Hybrid System - Northern Sky Research, Jul 2018
"The Military segment has, historically, primarily been served by GEO satellites for execution of critical applications, including intelligence gathering, navigation and communication. GEO systems, by nature, offer the advantage of significant coverage via a single satellite, especially with the advent of GEO-HTS satellites. On the other hand, latency and significant CAPEX have always been limitations of the GEO architecture. These drawbacks have given rise to the emerging trend of LEO and MEO constellations (NGEO) that can offer low latency and lower cost per satellite. However, constellations have their own set of constraints, with system complexity, ground infrastructure costs and frequency spectrum coordination, to name a few. Considering both, the shortcomings as well as the strengths of each system, could this perhaps be the start of an integration between GEO and LEO/MEO operators with a hybrid GEO-NGEO system on the rise? "

"Keeping the overall system costs low, however, is where it gets complex for NGEO framework. Although the manufacturing and launch costs per satellite are relatively lower, the need for a considerable number of satellites, the associated replenishment costs and the ground infrastructure expenses – all intensify the overall system cost."

"NSR estimates just over 1% of total revenues for gov/military will come from Non-GEO constellations by 2027."

"[TCO] is a key driver for NGEO constellations, military and otherwise, and is as well one of the biggest challenges for the operators presently. Simply put, either the expenses, mostly CAPEX, need to drop or the revenues need to grow for the business case to sustain. This is where a GEO-NGEO Hybrid architecture could prove pragmatic."

"Intelsat’s and OneWeb’s unsuccessful attempt towards a strategic alliance was one example of this hybrid system. GEO operators JSAT and Hispasat have similarly announced strategic investment in LEO constellations including LeoSat."

"Another level of integration, perhaps more technically innovative, and therefore challenging, is a system where GEO satellites can handle the TT&C operations for LEO constellations and act as the base station control system of the network."
NSR  GEO  NGSO  Intelsat  OneWeb  LeoSat  SES  O3b  satellite  constellations  military  DARPA  business  market-research 
july 2018 by pierredv
Kepler to co-develop third satellite with UK’s Satellite Applications Catapult - SpaceNews.com Jul 2018
"Kepler Communications, a Canadian startup designing a network of 140 telecom cubesats, has teamed up with the Satellite Applications Catapult in the U.K. to build a third and final prototype before pressing on with the full constellation."

"Kepler plans to launch the prototype satellite during the summer of 2019, preceding the launch of the larger constellation later that year. "

"TARS will be the first satellite to include a narrowband communications payload to carry small amounts of data from numerous Internet of Things devices"

"Kepler’s Internet of Things focus is on devices that move around frequently and as a result have difficulty staying connected because of differences in cellular standards around the world. Instead of configuring those devices to work with multiple cellular networks, customers can use Kepler’s satellite system to stay connected regardless of location. "
Kepler  Canada  NGSO  business  satellite  IoT 
july 2018 by pierredv
Boeing constellation stalled, SpaceX constellation progressing - SpaceNews.com
"Boeing is not actively building any satellites for the constellation it proposed to U.S. regulators two years ago, an industry executive said June 25.

“We have a filing but we haven’t really started developing it yet, so I would call that not really moving forward,” Dawn Harms, vice president of global sales and marketing at Boeing Satellite Systems International, said at the CASBAA Satellite Industry Forum here. "

"SpaceX anticipates starting service with around 800 satellites in 2020 or 2021. "
SpaceNews  space  LEO  NGSO  satellite  Boeing  SpaceX 
june 2018 by pierredv
Comtech, Kepler to Drive Rapidly Deployable LEO Comms - Via Satellite - June 2018
"Comtech EF Data, a subsidiary within Comtech Telecommunications’ Commercial Solutions segment, and Kepler Communications, a nano-satellite telecommunications company, have announced a collaboration to advance rapidly deployable, low-cost, low-latency communications via Low Earth Orbit (LEO) satellites and ground station infrastructure equipment.

Kepler’s first Ku-band LEO satellite, Kipp, was launched on Jan. 19, enabling data offload services to remote communities and maritime markets. Kipp is the first in a planned constellation of up to 140 LEO satellites that will provide real-time global connectivity by 2022. "
Kepler  Comtech  LEO  satellite  NGSO 
june 2018 by pierredv
How Global Eagle and Telesat Aim to Bridge Mobility Gaps - Via Satellite - June 2018
In mid-May, news surfaced that In-Flight Entertainment and Connectivity (IFEC) provider Global Eagle will facilitate Telesat in designing and testing its Low Earth Orbit (LEO) constellation. This tie-up, which effectively made Global Eagle the first IFEC player to announce a collaboration with Telesat, followed a comprehensive review of planned Non-Geostationary-Orbit (NGSO) constellations.
ViaSatellite  Telesat  GlobalEagle  LEO  NGSO  satellite 
june 2018 by pierredv
FCC Issues Inter-Satellite Data Relay Network License to Audacy; Non-GEO Market Access to O3b - Via Satellite - June 2018
The U.S. Federal Communications Commission (FCC) has granted a license to Audacy that authorizes the space communications company operate the world’s first commercial inter-satellite data relay network.

The data relay network will utilize two ground stations, in San Francisco and Singapore, as well as three Medium Earth Orbit (MEO) satellites scheduled to launch in 2019. With this network, Audacy hopes the spectrum will be able to provide real-time downlink, continuous monitoring, and always-on command services to Low Earth Orbit (LEO) spacecraft.

Along with the Audacy license, the FCC has also granted O3b’s request to modify its existing U.S. market access grant by adding new non-geostationary satellites and new frequency bands to provide broadband communication services in the U.S.
ViaSatellite  Audacy  SES  O3b  FCC  NGSO  MEO 
june 2018 by pierredv
U.S. FCC Expands Market Access for SES O3b MEO Constellation | SES June 2018
"SES announced today that it has been granted, by the U.S. Federal Communications Commission (FCC), authorization to serve the U.S. market using a significantly expanded O3b fleet in the Medium Earth Orbit (MEO)."

The FCC grant opens significant additional frequencies to SES for use in its non-geostationary (NGSO) constellation and enables it to deploy O3b mPOWER satellites into inclined and equatorial orbits, delivering full global pole-to-pole coverage. A total of 26 new O3b satellites are authorized, in addition to the 16 satellites already operational and in orbit. The grant allows SES to add 4 satellites to its existing O3b constellation, which are scheduled for launch next year, and provides the framework for SES to triple its next-generation O3b mPOWER fleet by giving U.S. market access for another 22 super-powered satellites, of which 7 are currently under construction and scheduled for launch starting in 2021.
SES  satellite  MEO  O3b  FCC  NGSO 
june 2018 by pierredv
FCC Approves Audacy license for commercial satellite data-relay constellation - SpaceNews.com Jun 2018
"The U.S. Federal Communications Commission granted a spectrum license June 7 to Audacy, the Silicon Valley startup planning to establish a space-based commercial communications relay network."

"Audacy plans to send large satellites into medium Earth orbit and to begin providing services in 2020 for satellite, human spaceflight and launch vehicle operators including data downlink, continuous monitoring and command services"
SpaceNews  FCC  Audacy  NGSO  space  satellite  MEO 
june 2018 by pierredv
New generation of non-geostationary constellations poses challenges for WRC-19 | PolicyTracker: the spectrum management newsletter
"Article 22.2 of the Radio Regulations, the ITU document that manages international spectrum use, states that geostationary orbit (GSO) satellites cannot receive interference from NGSO satellites in fixed-satellite service (FSS) bands. However, the regulations do not yet include any rules on how this is to be achieved above 30 GHz.

To address this, agenda item 1.6 of WRC-19 considers the regulatory framework for NGSO satellites to use the fixed-satellite service at 37.5–39.5 GHz (space-to-Earth), 47.2–50.2 GHz (Earth-to-space) and 50.4–51.4 GHz (Earth-to-space).

In addition to preventing interference to GSO satellites, the rules also need to find a way for NGSO satellites to avoid interference to each other, to passive earth exploration satellite services at 36-37 GHz and 50.2-50.4 GHz and to radio astronomy services at 42.5-43.5 GHz, 48.94-49.04 GHz and 51.4-54.25 GHz."

"... WP 4A had identified a way to calculate unavailability: the convolution methodology. This is meant to protect GSO satellites without imposing onerous and spectrally inefficient equivalent power flux-density (EPFD) limits on NGSO systems.

It works by calculating the single entry increase in unavailability to a reference GSO link, compared to a maximum stipulated in the Radio Regulations. Administrations then determine the overall increase in link unavailability so that aggregate interference will not degrade the GSO satellites’ availability by more than 10 per cent."

US IWG-3: "Alexander Epshteyn, an engineer at Boeing, drafted a paper for the group’s meeting in late March that proposed solutions to protect GSO networks based on the convolution methodology."
PolicyTracker  NGSO  ITU-R  WRC-19  GSO  EPFD  FSS  interference  *  Boeing 
may 2018 by pierredv
Non-GEO Constellations: Surviving the Disruption - Northern Sky Research - May 2018
"The main industry segments most affected by Non-GEO constellations are HTS Communications, IoT and Earth Observation (EO). ... The main industry segments most affected by Non-GEO constellations are HTS Communications, IoT and Earth Observation (EO). Each of these segments presents its own set of challenges and therefore different barriers to success. NSR’s Satellite Constellations: A Critical Assessment report investigates for the first time what guarantees success for LEO constellations within these three segments and the associated disruption on the industry."

"higher revenue requires a higher market share, which further requires low latency and higher coverage. That is the main value proposition of mega-constellations. However, the bigger the constellation, the higher the capital investment needed, and the higher the complexity of manufacturing with (because of their architecture) higher replenishment cost."

"The new Non-GEO constellations are expected to cause the biggest disruption in the HTS segment, conspicuously in Consumer Broadband and Backhaul/Enterprise verticals."

"these new LPWAN IoT constellations, despite offering the highest innovative disruption value, are not likely to have a significant impact on the overall satellite industry - financially, contributing just over 2% of overall NGEO revenues by 2027."

"A combination of low revenues and insufficient market capture will restrain at least one EO constellation from closing its business case."

"New IoT constellations such as Hiber, Astrocast and Kepler have a unique business case based on providing low cost, low power IoT solutions. This market is currently addressed by companies like Sigfox and LoRA on the terrestrial side and – to a limited extent – Iridium, Globalstar and Orbcomm on the satellite side."
NSR  market-research  satellite  space  business  LEO  NGSO  IoT  EO  EarthObservation 
may 2018 by pierredv
WRC-23 might legalise use of L-band for inter-satellite links | PolicyTracker May 2018
"The satellite industry is proposing to study changing the Radio Regulations to address the use of the L-band for data relays for non-geostationary satellites (NGSOs). "
PolicyTracker  NGSO  L-band  ISS 
may 2018 by pierredv
Telesat comes out against C-band proposal, girds for spectrum fight - SpaceNews.com May 2018
"Fleet operator Telesat, originally undecided about a joint-use spectrum plan put forward by Intelsat, Intel and SES, is turning against the plan because of how participants would be compensated."

“As it stands, unless we can be persuaded that these proceeds are in fact going to be distributed in an equitable way, we are going to oppose this and will oppose it vigorously,” Goldberg said during a May 3 earnings call.

"Telesat’s biggest growth initiative is the preparation of a constellation of 117 low-Earth orbiting satellites for high-speed global broadband services. The first, a prototype from Surrey Satellite Technology Limited, is in orbit to test technologies and service provision ahead of a larger constellation. Goldberg declined to estimate the total cost of the constellation, ..."

"Even with those resources, Goldberg said Telesat will likely need additional investors or partners to realize the constellation."
SpaceNews  Telesat  satellite  Intelsat  Intel  SES  NGSO  LEO  commerce 
may 2018 by pierredv
47 CFR 25.261 - Sharing among NGSO FSS space stations. | US Law | LII / Legal Information Institute
Absent coordination between two or more satellite systems, whenever the increase in system noise temperature of an earth station receiver, or a space station receiver for a satellite with on-board processing, of either system, ΔT/T, exceeds 6 percent due to interference from emissions originating in the other system in a commonly authorized frequency band, such frequency band will be divided among the affected satellite networks in accordance with the following procedure
FCC  satellite  interference  coordination  NGSO  regulations 
april 2018 by pierredv
S.1431 : Methods to enhance sharing between non-GSO FSS systems (except MSS feeder links) in the frequency bands between 10-30 GHz
S.1431 : Methods to enhance sharing between non-GSO FSS systems (except MSS feeder links) in the frequency bands between 10-30 GHz
ITU-R  NGSO  FSS  sharing 
april 2018 by pierredv
S.1503 : Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in Article 22 of the Radio Regulations
S.1503 : Functional description to be used in developing software tools for determining conformity of non-geostationary-satellite orbit fixed-satellite service systems or networks with limits contained in Article 22 of the Radio Regulations
ITU-R  NGSO  software  FSS 
april 2018 by pierredv
[pdf] EPFD Verification Software Status and Perspective - slides 2016
Transfinite, Agenium, IRU-R
from ITU Workshop on the Non-GSO Satellite Issues, 21st April 2016
ITU-R  Transfinite  Agenium  satellite  epfd  interference  NGSO 
april 2018 by pierredv
Equivalent power-flux density limits validation in accordance with Resolution 85 (WRC-03)
Resolution 85 (WRC-03) requires the Bureau to verify compliance of frequency assignments of non-geostationary fixed satellite service  systems with the single-entry equivalent-power flux density (EPFD) limits in Tables 22-1A, 22-1B, 22-1C, 22-1D, 22-1E, 22 2 and 22-3 of Article 22 of the Radio Regulations and to determine the coordination requirements under Nos. 9.7A and 9.7B.

In order to perform this regulatory examination, the Bureau in collaboration with two software companies developed a validation software package to calculate EPFD levels produced by non-GSO satellite systems.
epfd  calculation  software  satellite  interference  NGSO 
april 2018 by pierredv
FCC approves SpaceX constellation, denies waiver for easier deployment deadline - SpaceNews.com Mar 2018
"accepted SpaceX’s application to reach U.S customers with a megaconstellation of 4,425 broadband satellites, but denied the company’s request to relax the deadline by which it must have its entire constellation in orbit. [FCC] also said SpaceX’s approval is conditioned on an updated de-orbit plan, since the sheer number of satellites envisioned by SpaceX’s “Starlink” constellation goes far beyond what current guidelines consider manageable."

"NASA, which said a constellation as large as SpaceX’s likely needs to meet more stringent standards than what NASA recommends for de-orbit reliability. NASA’s reliability standard is that at least 90 percent of satellites can deorbit properly after their mission is complete."
SpaceNews  SpaceX  FCC  NASA  orbital-debris  NGSO 
march 2018 by pierredv
ITU-R may move to milestone approach for satellite filing for NGSOs | PolicyTracker: Mar 2018
"A consensus is emerging during preparations for WRC-19 that a milestone process should be established for the bringing into use (BIU) of some of the larger non-geostationary orbit (NGSO) satellite constellations. This would oblige operators to demonstrate progress in building their constellations in order to obtain and keep their satellite filings."

"Hazem Moakkit, vice president for corporate and spectrum strategy at Intelsat, told a recent industry conference that at the moment you can have filings submitted for over 6,000 satellites, but the rules say you can BIU with only one satellite. “There is something broken here and it needs to be fixed,” he said."

"The milestones for NGSO satellites might start after seven years from the original application. After a few more years, an operator would have to show that they have a certain percentage of a constellation in operation. According to the current consensus described by Allison, there may be two more milestones, with the final one set 15 years after the first application. The longer timescale would reflect the greater complexity that these constellations would have in comparison to geostationary satellites."
PolicyTracker  WRC-19  ITU  NGSO  satellite 
march 2018 by pierredv
LEO and MEO broadband constellations mega source of consternation - SpaceNews.com Mar 2018
"the rush to HTS is driving down bandwidth prices so fast that some fairly low-mileage satellites are struggling to keep up."

“At the moment there is a potential scramble for who is going to be the third player between Telesat, LeoSat and SpaceX,” said Farrar. “It’s probably going to be clear in the next 12 months which of those is out ahead.”

"Perhaps the biggest variable in calculating demand is figuring out what consumers will have to pay for the user terminal—the receiver and antennas customers will use to connect to the constellation."

"Farrar is among analysts who doubt consumer broadband will be the biggest application for LEO constellations. Bridging the digital divide is a laudable goal, but backhaul — using satellites to help cellular networks to increase coverage and improve service — is an early market they can dominate with or without cheap antennas."
SpaceNews  NGSO  LEO  MEO  GEO  HTS  broadband  satellite  Tim-Farrar  Armand-Musey  NSR  antennas  Kymeta  Phasor  commerce  trends 
march 2018 by pierredv
Kratos, bullish on satellite communications, in talks with LEO constellations - SpaceNews.com Mar 2018
"Three trends are driving Kratos’ satellite business according to DeMarco: smallsat constellation operators designing their ground systems, high-throughput satellites that have more complicated RF systems, and an increase in U.S. defense space spending.

DeMarco said smallsat operators across the whole gamut of sizes are choosing their command and control communications systems. Those ground systems, which need to manage more satellites in more complicated orbits than traditional geostationary satellites, require altogether different ground technology, he said."

"Kratos competitors in command and control include Braxton Technologies of Colorado Springs, Colorado, and Zodiac Aerospace of Plaisir, France."

"DeMarco said Kratos’ spectrum monitoring business, which finds RF signals that intentionally or unintentionally impede satellite signals, grew by 35-percent last year. "
SpaceNews  Kratos  NGSO  ground-systems  smallsats  satellite  ground-segment  spectrum-monitoring 
march 2018 by pierredv
Viasat CEO Talks New Satellite Internet Service and SpaceX | Fortune Feb 2018
Viasat CEO Mark Dankberg believes that it’s unlikely that the kinds of smaller satellites that companies like SpaceX or rival OneWeb are looking to deploy in low orbit will be able to offer Internet speeds that are as fast as the bigger satellites in higher orbit.
Fortune  Viasat  NGSO  Mark-Dankberg  interview 
february 2018 by pierredv
SpaceX Indicates Satellite-Based Internet System Will Take Longer Than Anticipated - WSJ Feb 2018
“Acknowledging there are no final cost estimates or engineering designs yet for its proposed broadband constellation, spokesman John Taylor revealed substantial delays from initial project timelines. In a statement provided exclusively to The Wall Street Journal on Tuesday night, billionaire Elon Musk's company signaled that development of its high-profile satellite network has been significantly slower -- and seemingly more complex -- than many inside and outside SpaceX originally anticipated.”

“SpaceX said in Tuesday night's statement, "we still have considerable technical work ahead of us to design and deploy" some 4,400 similar satellites. The tentative goal of starting limited service by 2020 now appears unrealistic based on that language, but the company didn't provide an alternate schedule.”

“SpaceX engineers are still considering the most appropriate and cost-effective space and ground technologies to embrace, without firming up subcontractors or completing production plans.”

“… technical and financial details of anticipated ground equipment for subscribers -- considered critical elements in any such project -- are still undetermined.”
WSJ  SpaceX  broadband  satellite  NGSO  deployment 
february 2018 by pierredv
Spengler Maps out 2018 for Intelsat After Eventful 2017 | Via Satellite Jan 2018
VIA SATELLITE: Will Telesat go ‘big’ into LEO?

Goldberg: I think this is where the future lies. If our assumptions are right about what we can achieve technically, the price points that we are seeking to achieve, and the response from the customer community, we will go very big into this. I can see this very much being the future of the company. It will play out over the course of this year.

VIA SATELLITE: SES made their big mPOWER announcement. Will Telesat’s ambitions have a similar scale?

Goldberg: For sure. It will be terabits of capacity. We have a very flexible, high throughput, low latency architecture. It is a broadband play. We will target many of the same verticals we are serving today on the enterprise side, including mobility, government and cellular and IP backhaul requirements. Initially we will focus less on direct-to-consumer services, as I believe there has to be further development of the user antenna to make that more cost competitive.
ViaSatellite  interview  Telesat  satellite  LEO  NGSO 
january 2018 by pierredv
Sabbagh: SES is a “Lonely Voice” in the Industry | Via Satellite, Jan 2018
SES was the talk of World Satellite Business Week (WSBW) late last year when it announced a major new strategic initiative, mPower, through O3b. SES has contracted with Boeing Satellite Systems, to build seven super-powered Medium Earth Orbit (MEO) satellites. The constellation will have 30,000 fully-shapeable and steerable beams that can be shifted and switched in real time to align with customers’ quickly changing growth opportunities.

... You have to remember that O3b was initially designed to provide very high throughput to a small number of clients each with very high bandwidth requirements. The evolution we were looking for was one where we could further advance the throughput performance while achieving greater flexibility and scalability on the bandwidth in order to serve and empower a much larger market.

... The first seven satellites of the new system will bring multi-terabits of productivity. We can scale this up as we add new assets into the constellation.

VIA SATELLITE: Has the industry been slow to change?

Sabbagh: The answer is yes, and it is the predicament of every industry where there is a well-established playbook that yields rich economic returns.
ViaSatellite  interview  SES  satellite  O3b  MEO  NGSO 
january 2018 by pierredv
2018 Could Be a Revolutionary Year for Smallsats - Via Satellite -Via Satellite Jan 2018
"2017 was a banner year for the satellite industry in many respects. 2018 could prove to be even more momentous, as the smallsat megaconstellations that have been under development for years finally emerge — along with the dedicated smallsat launch vehicles that will serve them. In an interview with Via Satellite, Northern Sky Research (NSR) analyst Carolyn Belle laid out her expectations for the year ahead"

"Overall, 2017 was a “very good year” for smallsat launch rates, Belle said, with the industry orbiting 329 smallsats (between 1 and 500 kg) in total. This is the highest number launched in one year to date, easily outstripping the mere 130 orbited in 2016."

Demand for Geosynchronous Earth Orbit (GEO) satellites have plummeted in recent years, culminating in just nine orders in 2017. “That was a more significant decline than anything we’ve seen before,” Belle said. “That was the lowest number in more than a decade. Global capacity pricing continues to sink like an anchor, making operators very cautious about their investments, Belle said.”
ViaSatellite  interview  smallsats  cubesats  satellite  NorthSkyResearch  launch  NGSO  GEO 
january 2018 by pierredv
Telesat Celebrates Launch of Its First LEO Satellite - Via Satellite - Jan 2018
"Telesat announced the successful launch of its first Low Earth Orbit (LEO) satellite, an important milestone in the company’s plans to deploy a global LEO constellation to provide broadband communications services around the world.Telesat’s Phase 1 LEO satellite flew into orbit aboard a Polar Satellite Launch Vehicle (PSLV) operated by the Indian Space Research Organization (ISRO). Surrey Satellite Technology Ltd. (SSTL) built the spacecraft at its facilities in the United Kingdom."

"initial constellation will consist of approximately 120 satellites launched by 2021"

"Telesat has installed ground infrastructure at its teleport in Allan Park in Ontario, Canada, to support testing and has customers in growing enterprise segments who will be participating in trials during 2018."
Telesat  SurreySatelliteTechnology  ISRO  India  space  newspace  satellite  LEO  NGSO  deployment 
january 2018 by pierredv
Q&A | Telesat’s Erwin Hudson opens up about LEO mega-constellation plans - SpaceNews.com Oct 2017
"Telesat is some three to five months ahead of OneWeb in launching low-Earth orbit telecommunications satellites, and barring a surprise launch from SpaceX, will likely be the first new mega-constellation to put hardware into operation."

Erwin Hudson: "a range of tests on the Phase 1 satellites during 2018 ... We plan to launch Phase 2 satellites beginning in 2020, and commence commercial service in 2021"
SpaceNews  Telesat  satellite  LEO  deployment  NGSO 
january 2018 by pierredv
Non-geostationary satellites want more spectrum sharing in 3.7-7 GHz bands | PolicyTracker: the spectrum management newsletter
"WRC-19 Agenda Item 9.1.3 calls for studies into the technical, operational and regulatory feasibility of allowing new non-geostationary satellites in the 3.7-4.2 GHz (C-band), 4.5-4.8 GHz, 5.925-6.425 GHz and 6.725-7.025 GHz bands allocated to fixed satellite services (FSS). The proposal isn't particularly controversial but any additional spectrum sharing must be handled with care, satellite operators say."

"Resolution 157 from WRC-15 [notes] that both orbits and their associated spectrum are valuable resources, equitable access to which should be safeguarded for the benefit of all countries"

"Current ITU rules dealing with the protection of GSO systems from non-GSO systems in the C-band were set over 15 years ago based on some now older non-GSO designs, said EMEA Satellite Operators Association secretary-general Aarti Holla-Maini. Those rules were originally made for the benefit of non-GSO operators, and were an alternative to the more general rule that simply obligates non-GSO systems to protect geostationary systems. Satellite manufacturers now want updated values in the ITU rules that will give them more flexibility in non-GSO designs while still protecting GSO satellites."
PolicyTracker  satellite  C-band  FSS  NGSO  GSO  ITU 
december 2017 by pierredv
EXCLUSIVE - Tom Choi: Life after ABS - Via Satellite -Oct 2017
VIA SATELLITE: Given the influx of new players in the satellite industry and the new Low and Medium Earth Orbit (LEO/MEO) players that you have been outspoken against, what does the future hold for a player like ABS?

Choi: As I said many times before … I doubt the majority will ever launch and even if they do most will fail. Why? Let me ask a few questions: Where do they have market access, ground facilities to install their gateways, and most importantly who are their customers? They say they will fill the niche of serving the unconnected but they won’t be competitive to 5G. These are basic questions investors ask. This is why most will not get financing because they cannot answer them. As an example, which Export Credit Agency (ECA) is backing these crazy projects with no customers? Not a single one thus far. Look at what happened when the last company got funded on “hot air:” NewSat collapsed much to the chagrin of EXIM bank. I seriously doubt they want to relive that kind of experience again, this time on a much larger scale. So, the answer to your question is no, ABS will not be materially impacted.
ViaSatellite  interview  LEO  satellite  business  NGSO  critique 
november 2017 by pierredv
47 CFR 25.157 - Consideration of applications for NGSO-like satellite operation. | US Law | LII / Legal Information Institute
"This section specifies the procedures for considering license applications for “NGSO-like” satellite operation, except as provided in paragraph (b) of this section."
FCC  regulations  satellite  rules  licensing  NGSO 
october 2017 by pierredv
SpaceX seeks FCC approval to test satellite antenna setup in Seattle area – GeekWire, Oct 2017
SpaceX has filed an application with the Federal Communications Commission to begin ground testing of a satellite communications system between its facilities in Redmond, Wash., as early as this month.
SpaceX  Starlink  NGSO  satellite 
october 2017 by pierredv
Smallsats unite to campaign on spectrum issues | PolicyTracker: the spectrum management newsletter
"The Commercial Smallsat Spectrum Management Association (CSSMA), launched this month, will campaign for an expedited spectrum coordination process for shared spectrum as well as on other spectrum issues affecting the community."

"The primary commercial uses of smallsats so far are for imaging (Planet Labs, Astro Digital) or other kinds of sensing (such as radio frequency sensing – Hawkeye 360); weather forecasting (Spire, Space Sciences); and monitoring of automatic identification systems for shipping and automatic dependent surveillance (Spire). That’s according to Tony Lin, a Hogan Lovells communications attorney based in Washington, D.C.

Another company, Kepler, has proposed a smallsat Fixed Satellite System (FSS), said Lin, who represents several smallsat companies. Two operators, Spire and Planet, have obtained licences from the Federal Communications Commission (FCC) to operate commercial smallsat systems; the other companies have either applied or plan to apply soon."

"Smallsat systems generally use spectrum for one-way “data dumps,” so coordination and shared use is primarily a “scheduling” exercise. Smallsats generally don’t need the exclusive spectrum more typically required for the Mobile Satellite Service or FSS."
satellite  smallsats  nanosats  PolicyTracker  NewSpace  HoganLovells  PlanetLab  HawkEye360  Spire  Kepler  NGSO 
september 2017 by pierredv
Smallsat companies form trade association to address issues facing the smallsat community | Global Media and Communications Watch, Sep 2017
"Founding members of the CSSMA include Astro Digital, HawkEye 360, Kepler, Planet, Spire, KSAT, RBC Signals, Aerospace Corporation, and Hogan Lovells."
SmallSat  nanosat  satellite  NGSO  NewSpace  trade-association  HoganLovells 
september 2017 by pierredv
SpaceX stresses importance of 28 GHz earth station siting rules | FierceWireless, Aug 2017
SpaceX urged the commission to clarify that if the contour of a 28 GHz gateway earth station deployed on private property does not exceed the -77.6 dBm/m2/MHz limit at its property line or otherwise does not cover any population, the earth station does not count toward the current per-county or population coverage limits as outlined in the commission’s rules.
SpaceX  FierceWireless  28GHz  NGSO 
august 2017 by pierredv
FCC Denies EchoStar Request for Co-primary Geostationary Orbit Ka-band Designation | TvTechnology
"The FCC's International Bureau last week denied a Petition for Rulemaking filed by EchoStar Satellite Corporation requesting the commission modify its Ka-band plan to permit geostationary satellite orbit (GSO) fixed satellite service (FSS) operations on a co-primary basis in the 18.8-19.3 GHz and 28.6-29.1 GHz bands designated for non-geostationary satellite orbit (NGSO) FSS. EchoStar's petition received support from SES AMERICOM, Hughes Electronics Corporation, and Hughes Network Systems, which supported EchoStar's assertion that the spectrum is lying fallow and co-primary use could lead to the introduction of additional and innovative services."
TVTechnology  EchoStar  satellite  rulemaking  FCC  GSO  NGSO  Ka-band 
august 2017 by pierredv
Sky and Space Global • Join us to make a better world
via Dale hatfield

See https://www.skyandspace.global/operations-overview/ for animation of full equatorial constellation

On https://www.skyandspace.global/operations-overview/technology/
"A constellation of Nano-Satellites (approximately 200), placed in carefully selected orbits giving equatorial coverage of the Earth, creating a global communication network for voice, data and instant messaging. Nano-Satellites are fully operational satellites with a mass of less than 10kg. Due to miniaturization of technology Nano-Satellites are capable to provide accurate altitude and orbit control and communication services. Since the first Nano-Satellite launch in 2003 they became the most popular type of satellites in space for diverse commercial uses. The low mass and high capabilities of Nano-Satellites make them an affordable building blocks for constellations"
satellite  nano-satellites  NGSO  cubesats 
august 2017 by pierredv
From Boeing to SpaceX: 11 companies looking to shake up the satellite space | FierceWireless
"Companies filed with the FCC last year to launch 8,731 non-geostationary orbit (NGSO) communications satellites, according to Parabolic Arc. Not all of them are proposing to connect the unconnected to the internet; some are geared toward IoT and others are looking at serving the space industry. Performance is expected to be far better than previous satellite generations, with fiberlike speeds and lower latency."
FierceWireless  satellite  NGSO  FCC  OneWeb  SpaceX  ViaSat  SpaceNorway  LeoSat  Karousel  Audacy  Theia  Boeing  O3b  Ku-band  Ka-band  V-band  Kepler  Telesat  * 
august 2017 by pierredv
Boeing's LEO constellation hinges on V-band's viability - SpaceNews.com
"Since filing its license last summer with the U.S. Federal Communications Commission for a constellation of broadband communications satellites, Boeing has focused on developing some of the project’s key technologies, Bruce Chesley, vice president and program manager for Boeing’s Global Broadband Systems, told reporters at a March 7 press briefing."

"Boeing plans to draw on its commercial and military satellite experience to mitigate the rain attenuation that can degrade V-band transmissions. "
Boeing  NGSO  satellite  V-band  SpaceNews 
june 2017 by pierredv
FCC gets five new applications for non-geostationary satellite constellations - SpaceNews.com March 2017
Boeing: “1,396 to 2,956 low-Earth orbit (LEO) satellites for providing connectivity”

SpaceX: VLEO, “V-band low-Earth orbit (LEO) constellation of 7,518 satellites to follow the operator’s initially proposed 4,425 satellites that would function in Ka- and Ku-band”

Telesat: “V-band LEO constellation as one that “will follow closely the design of the Ka-band LEO Constellation,” also using 117 satellites (not counting spares) as a second-generation overlay.”

Theia: “use V-band frequencies for gateways on the ground that would have originally only used Ka-band. The company wants to operate a constellation of satellites for both communications and remote sensing, and claims that because its spacecraft will have “regenerative” payloads, that “there is no specific relationship between V-band uplink frequency bands and downlink frequency bands.””

OneWeb: “operate a “sub-constellation” of 720 LEO V-band satellites at 1,200 kilometers, and another constellation in Medium Earth Orbit (MEO) of 1,280 satellites. Added together, that expands the OneWeb constellation by 2,000 satellites”

O3b: “up to 24 additional satellites that would operate in a circular equatorial orbit as a constellation called O3bN”
FCC  satellite  NGSO  v-band  Boeing  SpaceX  Telesat  Theia  O3b  OneWeb  SpaceNews 
june 2017 by pierredv
Boeing proposes big satellite constellations in V- and C-bands - SpaceNews.com June 2016
"Boeing wants U.S. and international regulators to relax constraints on low-orbiting satellite broadband constellations using C- and V-band and has specifically asked for a license to launch and operate a network of 1,396-2,956 V-band satellites."

"Boeing proposes a constellation of between 1,396 and 2,956 V-band satellites in 35-74 orbital planes at 1,200 km in altitude. Each satellite's footprint would be subdivided into thousands of 8-11-km-diameter cells, with each cell using up to 5 GHz of bandwidth. Boeing also wants regulators to clear the way for a mega-constellation in C-band, athough Boeing is not planning its own C-band constellation."

"The company outlines its network’s features for orbital debris mitigation, both in terms of how the satellites would be designed to withstand debris impact and how they would be removed from orbit on retirement."

"Allison’s principal argument is that current power limits on C- and V-band satellite networks were set more than a decade ago, when a proposed highly elliptical orbit constellation was in planning. The network was never built, but the regulations remained in force. Boeing’s proposed V-band network, like its C-band proposal, is for constellations in circular orbit, which the company says poses less of a threat to satellites broadcasting the same frequencies from geostationary orbit over the equator than would a highly elliptical orbit."

"As is true of most satellite broadband systems being designed, Boeing’s C- and V-band networks would feature intense reuse of the broadcast frequencies. For the V-band network, the company says each satellite’s beams would be subdivided into thousands of cells, each 8-11 kilometers in diameter and each carrying up to five 1-gigahertz channels."

"The company is asking the FCC to modify eight of its rules to permit the system’s development. For example, the FCC’s equivalent power flux density limits are stricter than the ITU’s; Boeing asks that the U.S. regulator raise its limits."
Boeing  satellite  NGSO  SpaceNews  V-band 
june 2017 by pierredv
[pdf] Technical Characteristics and Regulatory Challenges of Communications Satellite Earth Stations on Moving Platforms, Cuevas & Weerackody
ABSTRACT
Earth stations on moving platforms (ESOMPs) are a new generation of satellite terminals designed
to operate at the X-, C-, Ku-, and Ka-frequency bands and provide on-the-move broadband communication
services to land vehicles, aircraft, and ships. Some of the distinguishing characteristics
of ESOMPs are that they use very small antennas and require tracking systems to maintain
accurate pointing to the target satellite. However, because they operate while on the move, there
may be instances when antenna-pointing errors may result in increased interference to other
co-frequency neighboring satellites or other radio systems. To account for pointing errors and
other time-varying characteristics of a network of ESOMP terminals, it is necessary to use statistical
approaches for interference analysis such that the resulting interference is not harmful to the
victim network. The Johns Hopkins University Applied Physics Laboratory (APL) made significant
technical contributions on these topics and is actively engaged in the development of international
standards for ESOMPs. This article provides an overview of ESOMPs, their technical and
operational characteristics, statistical approaches for interference analysis, and the standards and
regulatory challenges that must be addressed for their successful operation.
UAS  NGSO  GSO  ESOMP  satellite 
june 2017 by pierredv
Low Earth Orbit Constellations Could Pose Interference Risk to GEO Satellites, Oct 2015
"A proposed wave of low Earth orbit communications satellite constellations could become an interference hazard for satellites in geostationary orbit even if those new systems comply with existing rules, some satellite operators fear."

"[Daryl Hunter, senior director of regulatory affairs for ViaSat]said that problem could be exacerbated if a number of the proposed NGSO satellite systems are launched over the next several years. If some of them violate the ITU rules, he said, it could be difficult to determine which ones are causing the excess interference."
GSO  NGSO  satellite  interference  SpaceNews  ViaSat  O3b  Intelsat 
may 2017 by pierredv
Space upstart plans public cloud in low Earth orbit • The Register, May 2017
The company plotting to put VMs in space is called Vector Space Systems. It says it will fly a range of rockets. The baby of the company’s fleet, the “Vector-R,” is a deliberately small vehicle that can lift payloads of up to 60kg to low-Earth orbit. And it’s simple enough that Vector thinks it can be launching 100 times a year.
TheRegister  NGSO  LEO  cloud 
may 2017 by pierredv
Dish Network battles OneWeb and SpaceX for Ku-band spectrum rights - SpaceNews.com June 2016
FCC filing

"A coalition of 5G terrestrial mobile broadband companies led by Charlie Ergen’s Dish Network on June 8 asked U.S. regulators to strip future low-orbiting satellite Internet constellations of their priority access to 500 megahertz of Ku-band spectrum – spectrum coveted by prospective constellation operators including OneWeb LLC and SpaceX."

“There is simply no basis to jeopardize 5G [Multi-Channel Video Distribution and Data Service, or MVDDS] deployment to give additional spectrum to a speculative NGSO service that already has access to ample spectrum,” the MVDDA Coalition said in its FCC petition, referring specifically to OneWeb.

"The coalition said a recent study performed by Tom Peters, a former chief engineer at the FCC’s Wireless Telecommunications Bureau, found that new technology would permit 5G to coexist in this spectrum with current direct-broadcast television satellite signals. The coalition concedes that no such spectrum sharing is possible with low-orbiting satellite systems without “severe operational constraints on MVDDS, NGSO FSS [fixed satellite service] or both services.”"

"Hawthorne, California-based SpaceX, a growing provider of launch services, in January 2015 announced that it would build a satellite production facility in Seattle, Washington, for a constellation of 4,000 satellites, also using Ku-band for the links to end users."
SpaceNews  satellite  Ku-band  OneWeb  5G  Dish  FCC  MVDDS  NGSO 
may 2017 by pierredv
Boeing seeks permission to launch satellite constellation in same V-band spectrum as 5G systems - FierceWirelessTech
"Boeing last week filed an application with the FCC to launch and operate a geo-stationary satellite orbit (NGSO) fixed satellite service (FSS) system operating in low Earth orbit (LEO) in the 37.5-42.5 GHz, 47.2-50.2 and 50.4-52.4 GHz bands, collectively known as the V-Band. In so doing, it's putting its hat into the same ring as companies like SpaceX and OneWeb."
"Boeing's application said its NGSO system would consist of a total constellation of 2,956 NGSO FSS satellite to provide very high speed, low latency internet connectivity for user terminals via the system's network access gateways and associated terrestrial fiber network. "
Boeing  V-band  SpaceX  OneWeb  NGSO  FSS  FierceWireless 
june 2016 by pierredv
Dish files patent application for mobile interactive satellite service - FierceWirelessTech
"Dish Network (NASDAQ: DISH) has applied for a patent that involves a hybrid satellite / terrestrial service capable of delivering interactive video and broadband Internet to consumers in both urban and rural areas, according to a patent application. The filing was first reported by The Donohue Report.

The patent filing describes techniques for reusing frequencies between satellite and terrestrial systems. In addition, it discloses a mechanism for networking satellite and terrestrial networks in which the power levels of the satellite and terrestrial communications are controlled so as to minimize co-channel interference. "
"OneWeb on April 28, 2016, filed an FCC application seeking access to the U.S. market for its planned NGSO satellite system to use these frequencies."
FierceWireless  Dish  MVDDS  NGSO  FSS  12GHz  OneWeb 
june 2016 by pierredv
47 CFR 25.208 - Power flux density limits. | US Law | LII / Legal Information Institute
Cites to Recommendation ITU-R S.1428
"... the power flux density at the Earth's surface produced by emissions from a space station for all conditions and for all methods of modulation shall not exceed the following values ..."
FCC  rules  EPFD  satellite  interference  field-strength  FSS  GSO  NGSO  non-GSO  SkyBridge  47CFR  pfd 
july 2015 by pierredv
WRC-2000: Results of Interest to Satellite Operators - Via Satellite
See particularly "Sharing between non-GSO FSS, GSO FSS and FS" Line via Rich Currier, March 2014
25.208  EPFD  WRC  SkyBridge  WRC-2000  satellite  interference  field-strength  FSS  GSO  NGSO 
march 2014 by pierredv

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