Satellite Internet

Loving and Hating Starlink

I'm such an industry nerd that I sometimes read customer reviews of large ISPs just to see how the public perceives them. Most ISPs have more negative reviews than positive ones, and that's to be expected since people are more likely to complain when things go wrong than give praise when things are working as promised.

Two New Chinese Internet Service Constellations and Their Market

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).

Satellites Directly to Cellphones

AT&T and satellite company AST SpaceMobile announced a partnership to provide satellite cellular service directly from satellites to cellphones. This will provide a service that is much needed for the billions of remote users who are not in the range of a cell tower. This is an emerging industry that is still being referred to by different acronyms.

A Transport Protocol’s Perspective on Optimizing Starlink Performance

Digital communications systems always represent a collection of design trade-offs. Maximizing one characteristic of a system may impair others, and various communications services may choose to optimize different performance parameters based on the intersection of these design decisions with the physical characteristics of the communications medium.

Starlink Service Is Great on (Some) Cruise Ships

I recently used Starlink on a cruise along the coast of Northwest Africa, and I'll summarize my experience below, but first let me explain why I put some in the title of this post. I posted the following request on the Reddit Cruise group: "What has been your experience of Starlink Internet service on Seabourn or other cruise lines? How was latency? Do video chats work smoothly? Games? etc."

Starlink Has Begun Delivering Promised Latency Cuts

In his January 12 SpaceX update, Elon Musk said the biggest goal for Starlink from a technical standpoint is to get the mean latency below 20 ms. He expanded by saying that given the speed of light, 8 ms is the absolute minimum latency for a satellite at 550 km. He believes they can optimize terrestrial and inter-satellite links, and minimize queueing delays and dropped packets, to recude the the rest of the time to below 10 ms.

Civilian Tech Mobilization in Ukraine

As was the case in the US during World War II, civilian volunteers are making important contributions to the Ukrainian war effort. On February 8, 2022, the first truckload of Starlink terminals arrived in Kyiv. A week later they were being used. By April 2022, there were 5,000 terminals in Ukraine, and 42,000 as of April 2023. (At this point, SpaceX and Ukraine have gone silent. Neither ChatGPT4, Gemini, Copilot, Perplexity, nor I could not find a current terminal count).

Amazon Project Kuiper vs SpaceX Starlink

In 2019, I wrote that Amazon would be a formidable satellite-ISP competitor. I still think so, but I didn't expect it would be over four years until they launched the first test satellites. In the meantime, SpaceX has put over 5,000 satellites in orbit and has over two million Starlink customers. Amazon has permission to launch 3,236 satellites.

An Update on Satellite Broadband

Ookla recently published a blog that looks at the speed performance of satellite broadband, focusing mostly on Starlink. I haven't looked at this broadband sector for a while and thought it was time for an update. Starlink has had a busy year. At the end of November, the company had 5,500 satellites in orbit, up from over 3,200 at the end of 2022. The first constellation is still slated to reach almost 12,000 satellites, and the company has tentative permission from the FCC to extend to 42,000.

The Trajectory of the Broadband Industry

For well over a decade, it was fairly easy to understand the trajectory of the broadband industry. In the residential market, cable companies snagged all the growth while telcos shrank as customers abandoned DSL. Other technologies like fiber or fixed wireless gained customers but were a blip on the national scale.