Quote:
Originally Posted by toddw8
https://arstechnica.com/information-...ed/?comments=1
From this article each satellite will have a downlink capacity of 17 to 23 Gbps. Given that a particular point on earth will have los to at most 2 or 3 satellites at once that's just not enough bandwidth to provide service anywhere with any sort of population density.
I'm sure that they have grander ambitions down the road, but version 1 of the spacex constellation is not going to be competing against comcast in cities for sure.
Thanks, this is interesting. According to
this article about the FCC filing, each satellite is supposed to have a coverage radius of 1060km, or 3.5 million sq km, which is about 1/146 of the Earth's surface area. If they launch 4425 satellites for their first-gen constellation, that would give them an average of 30 satellites in the sky at any given time, presumably further concentrated in inclinations with lots of people in them. Still agree though that it doesn't seem like nearly enough to displace landlines.
It still could be the case though that Google has decided that launching satellites is faster or more cost-efficient way of getting internet to people than building out fiber lines. You can always just launch more satellites to add subscribers as long as you have the orbits and wireless spectrum for them.