Amazon's Project Kuiper has confirmed the use of laser-based inter-satellite links (OISL) for its satellite communication system. The technology has undergone successful testing in orbit, with data transmission speeds of 100 gigabits per second (Gbps) over a distance of 621 miles achieved. more
May become the access answer for many at the end of the road. The icicle dripping dish in the picture is the antenna for Starlink, a satellite-based broadband service from SpaceX -- one of Elon Musk's other companies. It came Saturday, just before the snow arrived here in Stowe, VT. It's heated, so I didn't have to shovel it out, and it's working despite its frozen beard. The pandemic has shown us that it is socially irresponsible to leave any family without broadband access. more
SpaceX has begun the process of securing licenses to operate its Starlink Internet service in the Caribbean. I don't know which nations they are considering, but would advise them to seriously consider Cuba -- Starlink service in Cuba would benefit the Cuban people, SpaceX, and the US. What's in it for Cuba? Fixed home and commercial connectivity in Cuba are limited, slow, and expensive, but they do have shared connectivity... more
SpaceX launched its eighth Starlink mission via the Falcon 9 rocket on Wednesday, carrying 60 more satellites for its Internet satellite constellation, bringing the total in operation on orbit to 480. more
The internet is unavailable and/or unaffordable by about 50% of the world's population. The situation is worse in, but not confined to, developing nations where the service is typically sub-standard when it is available.Geostationary satellite connectivity is available globally, but it is slow and expensive because the satellites are high above the Earth. Low-Earth orbit (LEO) satellites can deliver speeds comparable to terrestrial links, but constellations of many satellites would be needed to serve the entire planet. more
There was a recent dispute between OneWeb and SpaceX regarding the possibility of a collision between two of their low-Earth orbit (LEO) satellites. OneWeb's satellite (OneWeb-1078) was launched on March 25 and headed for its orbit at an altitude of 1,200 km when, in early April, it passed near a SpaceX satellite (Starlink-1546) in orbit at about 450 km. There was no collision, but subsequently, OneWeb's government affairs chief Chris McLaughlin said... more
In 2020, China applied to operate GuoWang, a constellation of 12,992 low-Earth orbit (LEO) broadband Internet satellites, and in 2021, it became clear that it was intended to become China’s global LEO broadband constellation. Can they do it? Maybe, but it will take a long time. China does not have the capacity to launch 12,992 satellites today. I don’t know the mass of their planned satellites, but GuoWang is informally referred to as China’s answer to Starlink. more
Starlink now has nearly 500,000 users and is available in 32 countries and nine languages. It is either available, wait-listed, or coming soon in every nation except Afghanistan, Belarus, Cuba, China, Iran, North Korea, Russia, Syria, and Venezuela. There are now 15,000 Starlink terminals in Ukraine with service throughout the nation through connections to ground stations in Poland, Lithuania, and Turkey and they have made a significant contribution in the war with Russia. more
I posted reviews of important LEO-satellite Internet service developments during 2017 and 2018. I've been updating those posts during the years and have 16 new posts for 2019. In 2019 we saw four inciteful simulations, Leosat suspending operations and Amazon announcing the availability of a new ground station service and plans for a LEO constellation, progress in phased-array antennas but a lowering of expectations for inter-satellite laser links (ISLLs), new competition from China... more
Unlike Bezos and Branson, they're going to stay there. Today we have space-based internet access and a terrestrial internet; within ten years, we'll have a space-based internet. Internet traffic will travel more miles in space than on terrestrial fiber. By that time, the great cloud data centers of Google, Amazon, Microsoft, and their competitors and successors will mostly be in orbit as well. Five years from now, this transition will be obvious, accepted, and well underway... more
China’s plans for low-Earth orbit Internet service constellations began with two projects, Hongyun (156 satellites) and Hongyan (864 satellites). These were eventually sidelined for Guowang, an ambitious, 12,992 satellite constellation that is expected to begin launching satellites this year. But, that is old news. China’s five-year plan designates satellite Internet as a strategic emerging industry and two new constellations have emerged, G60 (12,000 satellites) and Honghu–3 (10,000 satellites). more
There is a lot of news recently about low-orbit satellite broadband. There is recent news concerning the three primary companies that will be vying in the space. First is Jeff Bezos Project Kuiper, which is still likely to get a brand name at some point. Project Kuiper has contracted with United Launch Alliance, a joint Boeing-Lockheed Martin venture, for the first nine broadband rocket launches. more
This post is speculative, but I think Cuba may use satellite for 3G backhaul and, when the technologies are ready, leapfrog over 4G to 5G mobile connectivity and next-generation satellite. ETECSA began rolling out 3G connectivity for Cubans about a year ago and a few things have led me to believe they will continue... But, could they provide widespread 3G mobile? Doing so would require more base stations and more backhaul from those base stations to the Intenet. more
At the end of 2017, I posted a review of important LEO-satellite Internet service developments. I've been updating those posts during the year and have also added the following new posts in 2018. ... SpaceX, OneWeb and Telesat are planning to offer Internet-service from LEO, but O3b is already providing connectivity to relatively large customers like mobile phone companies, government organizations, and cruise ship lines using a constellation of medium-Earth orbit (MEO) satellites. more
SpaceX delayed last Wednesdays Starlink launch due to high winds and on Thursday they decided to do a software update and postpone the launch until next week, but they revealed significant progress in their Starlink mission press release and in tweets by and a media call with Elon Musk. The mission press release said SpaceX has significantly reduced the size and weight of their satellites. more