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I think there is not much spectrum left. https://www.nasa.gov/sites/default/files/thumbnails/image/january_2016_spectrum_wall_chart.jpg https://www.nasa.gov/si

I think there is not much spectrum left. https://www.nasa.gov/sites/default/files/thumbnails/image/january_2016_spectrum_wall_chart.jpg https://www.nasa.gov/sites/default/files/thumbnails/image/ja...

wmf 4y ago
I'm not sure how I can be clearer about this. Satellites can provide phone service using spectrum that is already allocated.
- _trampeltier 4y ago
  Yes, but in most countrys, this frequencys had been sold for a lot of money. So I think, SpaceX can't just use this frequencys.
  - wmf 4y ago
    They can sublicense from the existing spectrum holder as I said.
db48x 4y ago
There is a great deal of difference between what is assigned and what is actually in use at a particular location. Cell phone networks in different regions have different build histories and thus use different frequency bands even when they are currently owned by the same provider. Your preferred provider might “own” 12 frequency bands, but may only be using 4 of them in your city and a different 4 in a city an hour away. The only advantage to buying a phone from a cell phone provider is that they will already have figured out which phones will actually work in your city, with the network as it has actually been built. If you buy one independently you need to do that work yourself. A satellite provider could provide you with service as you drive down the highway through areas where the cell towers only support the “wrong” frequency bands. Furthermore, the cell towers have very limited range; usually just a few miles. Past the edges of the urban and suburban areas there will be nobody at all using those frequency bands except for a few lonely phones repeatedly asking for service and getting no reply. A satellite provider could easily provide regular phone service to thousands of users across a huge, sparsely–populated area where cell phone towers are few and far between.

I think there is not much spectrum left. https://www.nasa.gov/sites/default/files/thumbnails/image/january_2016_spectrum_wall_chart.jpg https://www.nasa.gov/sites/default/files/thumbnails/image/ja...

wmf 4y ago

I'm not sure how I can be clearer about this. Satellites can provide phone service using spectrum that is already allocated.

_trampeltier 4y ago
Yes, but in most countrys, this frequencys had been sold for a lot of money. So I think, SpaceX can't just use this frequencys.
- wmf 4y ago
  They can sublicense from the existing spectrum holder as I said.

db48x 4y ago

There is a great deal of difference between what is assigned and what is actually in use at a particular location. Cell phone networks in different regions have different build histories and thus use different frequency bands even when they are currently owned by the same provider. Your preferred provider might “own” 12 frequency bands, but may only be using 4 of them in your city and a different 4 in a city an hour away. The only advantage to buying a phone from a cell phone provider is that they will already have figured out which phones will actually work in your city, with the network as it has actually been built. If you buy one independently you need to do that work yourself. A satellite provider could provide you with service as you drive down the highway through areas where the cell towers only support the “wrong” frequency bands. Furthermore, the cell towers have very limited range; usually just a few miles. Past the edges of the urban and suburban areas there will be nobody at all using those frequency bands except for a few lonely phones repeatedly asking for service and getting no reply. A satellite provider could easily provide regular phone service to thousands of users across a huge, sparsely–populated area where cell phone towers are few and far between.