[xoa]

>Starlink satellites are just routers to ground stations.

You are very out of date on your knowledge here. When it first launched yes, Starlink sats purely acted as "bent pipes" so you needed a ground station within 300-400 miles or so. But inter-sat optical laser links went online quite awhile ago so now data can go from a terminal through the orbital network to ground across the planet. That of course was required for them to offer air/maritime global service (as well as extremely remote areas like polar), can't put a ground station in the middle of the ocean.

Incidentally that should allow them to beat the latency of standard fiber by quite a bit over a long enough distance, there was speculation it might become quite popular for HFT for example, but I haven't tried it.

Edit: So I went ahead and checked, and interestingly at least via a v1 land based terminal on a basic plan they don't make use of it. So must be a higher end option or something? Picking a random top 50 site in Japan tbs.co.jp (163.45.254.1), a streaming TV site iirc, I got around 186ms ping on a fiber connection in rural New England, and 192ms via Starlink, almost exactly the difference one would expect for adding purely a LEO leg up to the nearest ground station. Maybe they want to charge for that, or maybe they're still fleshing out bandwidth on the intersat network. If anyone has a maritime or portable terminal or something it'd be interesting to see some comparisons. In principle on a great circle the distance for me should be something like 10600km, so maybe 12000ish including sats, 24k rtt, which at the speed of light should be more like 80ms. Even with some routing lag that's a big enough difference seems like it'd be noticeable if it was going via orbital mesh instead of ground and kind of fun to test.

[inemesitaffia]

Starlink right now only uses lasers where terrestrial paths aren't available.

I'd have thought they'd sell a different product with lower latency over Ku band by now