141–150 of 340 posts
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More like $10/month, not a penny.
Yep, for me it would be $8.50. For reference, this is an order of magnitude greater than the typical power consumption for existing satellite dishes / 4G modems, which typically operate at around 10W of power consumption.
I'm using Starlink right now. AMA. I'm in East Idaho. Currently my dish angles itself to the north. It rarely moves itself north/south, and slightly moves east/west throughout the day. I've read that right now it locks onto a single satellite, although they're adding multi-satellite support later. My speeds are inconsistent, and interestingly they start slow (around 60 Mbps) but after a couple seconds they'll get to…
> interestingly they start slow (around 60 Mbps) For many of us that's reasonably fast ;). In the UK, FTTC provided over POTS (often BT or some form of unbundle), the top end is 80Mbs/20Mbs. I don't know what you'd expect with cable provisioned areas supplied by the likes of Virgin (DOCSIS).
I'm using Starlink right now. AMA. I'm in East Idaho. Currently my dish angles itself to the north. It rarely moves itself north/south, and slightly moves east/west throughout the day. I've read that right now it locks onto a single satellite, although they're adding multi-satellite support later. My speeds are inconsistent, and interestingly they start slow (around 60 Mbps) but after a couple seconds they'll get to…
This is OT but can you share a little bit more about what it's like living in East Idaho? I grew up in Boise and now live in Chicago but with the way things have been going lately I've been considering moving back, and there's a real appeal to living in a smaller town in the eastern part of the state (my dad was from Twin Falls). Internet access is always a bit of a concern though, which maybe Starlink ameliorates? S…
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Starlink has said that they're planning on offering a roaming use-case, but they aren't there yet ( https://www.slashgear.com/spacex-starlink-cell-location-limi... ). Part of the issue is that Starlink cells are going to be very limited in capacity for the foreseeable future: https://www.ispreview.co.uk/index.php/2020/09/analyst-probes... . Cowen suggests that Starlink "should eventually be able to serve 485,000 simu…
> Imagine people going to Burning Man with lots of Starlinks or bringing their Starlink when they go on vacation. I deeply hope people aren’t going to those to download OS updates and watch Netflix. Might have some crazies that feel the need to livestream the whole thing, but should be okay if only a handful at a time.
Then those who abuse the data get slow service and nobody else.
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> Latency in this case is dominated by time-of-flight to the satellite. Is it though? Starlink orbits at 550 km, time-of-flight from ground to satellite to ground would be only 3.7ms, twice that makes ~20% of the roundtrip latency.
There are more than 2 roundtrips. Any MAC that has to perform time division multiplexing on a shared uplink has to poll all base stations over time to figure out which ones have data to transmit, and how much data is queued. Once the satellite knows how much data the ground station has to transmit, it assigns sufficient timeslots, transmits the assignment and then waits for data to come back. This is very similar to…
From what I read it has to do with the fact the antennas are high gain directional antennas and not omnidirectional ones like on cell phones. With cell phones you are kinda walking around in a soup of cell signals all sharing the same spectrum at once... you and hundreds of other people are broadcasting in the same frequencies at the same time and they all tell each other apart because they all use a different “language”; the Wikipedia CDMA article does an excellent job explaining this.
I would think that as more satellites get launched they could use WCDMA and signal from your station could be seen by multiple satellites in orbit much like a cell phone can reach multiple towers.
Writing it out... I bet TDMA is required because the FCC would never grant a block of spectrum where hundreds of thousands of ground stations were using low gain, somewhat omnidirectional antennas to reach a constellation of satellites in space....
I'm using Starlink right now. AMA. I'm in East Idaho. Currently my dish angles itself to the north. It rarely moves itself north/south, and slightly moves east/west throughout the day. I've read that right now it locks onto a single satellite, although they're adding multi-satellite support later. My speeds are inconsistent, and interestingly they start slow (around 60 Mbps) but after a couple seconds they'll get to…
Are the speeds symmetrical? In other words upload is the same as download?
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There are more than 2 roundtrips. Any MAC that has to perform time division multiplexing on a shared uplink has to poll all base stations over time to figure out which ones have data to transmit, and how much data is queued. Once the satellite knows how much data the ground station has to transmit, it assigns sufficient timeslots, transmits the assignment and then waits for data to come back. This is very similar to…
It’s interesting they’d do TDMA over some flavor of code division multiple access (CDMA). From what I read it has to do with the fact the antennas are high gain directional antennas and not omnidirectional ones like on cell phones. With cell phones you are kinda walking around in a soup of cell signals all sharing the same spectrum at once... you and hundreds of other people are broadcasting in the same frequencies a…
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no, I've had a beta terminal for months, upstream averages 15-18 Mbps with brief bursts to 30.
15-30mbps is about what I get for my upstream “gigabit” cable service.
I'm using Starlink right now. AMA. I'm in East Idaho. Currently my dish angles itself to the north. It rarely moves itself north/south, and slightly moves east/west throughout the day. I've read that right now it locks onto a single satellite, although they're adding multi-satellite support later. My speeds are inconsistent, and interestingly they start slow (around 60 Mbps) but after a couple seconds they'll get to…
Can you setup Starlink without the app, i.e: no cell phone? I'm getting real tired of devices that have no management/setup UI of their own.
The weird angled router they had out is just a convenience for non technical consumers who want an all in one 802.11ac box. The app on the phone also does the very basic first time setup step of defining an SSID and WPA2-PSK key.