The best independent analysis of Starlink I've seen are the papers and
simulations by Mark Handley at University College London:
http://nrg.cs.ucl.ac.uk/mjh/starlink/
My take is Musk can fund the whole thing on low latency alone. This 14
minute video (which leverages Mark Handley's data and simulations) provides
some insight into the economics of low latency and shows how it can work
even before they figure out the inter-satellite laser links:
https://www.youtube.com/watch?v=giQ8xEWjnBs
Thanks,
Brough
Brough Turner
netBlazr Inc. – Free your Broadband!
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On Thu, Jan 30, 2020 at 4:18 PM Ryan Ray <[email protected]> wrote:
> I haven't seen anything either regarding inter satellite links. The lasers
> they were going to use weren't burning up when the sats came down, so it
> had a non probable chance of hitting and killing someone. The only info
> again we have is from twitter posts and they claim they're trying again
> late 2020 but who the hell knows at this point. So much mis-information out
> there that it's impossible to get actual answers to questions, it's all
> just people parroting the same stuff from social media. 1gb down, better
> latency than fiber, unlimited bandwidth, sold at $20 a month.
>
>
>
> On Thu, Jan 30, 2020 at 12:41 PM Carl Peterson <[email protected]>
> wrote:
>
>> If they had RF inter satellite links there would be a license for that
>> and I haven't seen one. Could have missed it. Anyone see anything?
>>
>> On Thu, Jan 30, 2020 at 2:16 PM <[email protected]> wrote:
>>
>>> I believe they are using lasers derived from shark eyes. Those work
>>> better in space.
>>>
>>> *From:* Mark Radabaugh
>>> *Sent:* Thursday, January 30, 2020 12:49 PM
>>> *To:* AnimalFarm Microwave Users Group
>>> *Subject:* Re: [AFMUG] OT: Now there are ~~ 180
>>>
>>> Speed of light in glass varies but it’s about 80% of vacuum. Density
>>> matters! Or is it matter makes density? If your dense does it matter?
>>> If you're not matter does that give you energy?
>>>
>>> Mark
>>>
>>> On Jan 30, 2020, at 2:45 PM, Bill Prince <[email protected]> wrote:
>>>
>>>
>>> I think he means bandwidth as opposed to "speed". Surely latency would
>>> be almost indistinguishable. However, there could be a lot of difference in
>>> the bandwidth. Regardless of the sat-to-sat speed, the downlink/uplink will
>>> still be the gating factor.
>>>
>>> bp
>>> <part15sbs{at}gmail{dot}com>
>>>
>>>
>>> On 1/30/2020 11:40 AM, [email protected] wrote:
>>>
>>> In a vacuum it should be the same.
>>>
>>> *From:* [email protected]
>>> *Sent:* Thursday, January 30, 2020 12:36 PM
>>> *To:* AnimalFarm Microwave Users Group
>>> *Subject:* Re: [AFMUG] OT: Now there are ~~ 180
>>>
>>> What's the difference in speed between the laser and RF links?
>>>
>>> On Thu, Jan 30, 2020 at 10:40 AM Bill Prince <[email protected]>
>>> wrote:
>>>
>>>> Not what I read. The early sats (the ones other than the first 60) do
>>>> not have the laser communications between them, but they do have an RF link
>>>> between them. They are functional.
>>>>
>>>>
>>>>
>>>> bp
>>>> <part15sbs{at}gmail{dot}com>
>>>>
>>>>
>>>> On 1/29/2020 7:56 PM, Ryan Ray wrote:
>>>>
>>>> The sats that are up there now also are not equipped to communicate
>>>> with each other. There is no inner satellite communication. Everything has
>>>> to come down to ground stations right now.
>>>>
>>>> On Wed, Jan 29, 2020 at 12:08 PM Bill Prince <[email protected]>
>>>> wrote:
>>>>
>>>>>
>>>>> SpaceX got another 60 Starlink sats into orbit this morning. That
>>>>> brings
>>>>> the functional constellation to 180 sats. The first batch of 60 don't
>>>>> count since they are not equipped to communicate with each other.
>>>>> Various reports say either 300 or 400 sats are required to get a basic
>>>>> minimal functioning system. At the rate they're going, this may mean
>>>>> they will have achieved their goal in another couple of months (they
>>>>> want to do 2 launches per month).
>>>>>
>>>>>
>>>>> https://www.space.com/spacex-starlink-3-satellites-launch-rocket-landing-success.html
>>>>>
>>>>> --
>>>>>
>>>>> bp
>>>>> <part15sbs{at}gmail{dot}com>
>>>>>
>>>>>
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