[CalFiber] Fiber Broadband Association study on the capacity limits of Starlink

Christopher Mitchell christopher at ilsr.org
Fri Mar 5 11:00:54 PST 2021


Someone more technical than me can correct me but I think the spectrum
limitation is per spot beam and they told me that they don't think they are
limited to 4 spot beams per satellite. Each spot beam is 5 gbps I think.
Currently they have 4 spot beams per satellite I think.

On Thu, Mar 4, 2021, 4:54 PM Ernesto Falcon <ernesto at eff.org> wrote:

> Other than more spectrum or more satellites, I am not sure there is
> another realistic way to have the kind of doubling of capacity in the
> satellite system to stay ahead of trends in consumption. We see that with
> cell towers now where its densification or more auctions. And the doubling
> of consumption every handful of years is a recorded trend that isn’t
> changed yet, so I don’t think the 20-30% estimate is bad assumption here on
> what to predict.
>
>
>
>
>
> --
>
> Ernesto Omar Falcon
>
> Senior Legislative Counsel
>
> Electronic Frontier Foundation
>
> Office: 415 436 9333 ext. 182
>
> Cell: 202 716 0770
>
>
>
> *From:* Christopher Mitchell <christopher at ilsr.org>
> *Sent:* Thursday, March 4, 2021 2:14 PM
> *To:* Ernesto Falcon <ernesto at eff.org>
> *Cc:* calfiber at lists.eff.org
> *Subject:* Re: [CalFiber] Fiber Broadband Association study on the
> capacity limits of Starlink
>
>
>
> I mentioned this on the call I think some time ago... I don't think the
> assumptions are very credible. It may be that Starlink will have problems,
> but I don't think the Starlink folks expect to have the limitations that
> this analysis assumes, like the max capacity per satellite.
>
>
>
> I'm not taking a position on whether Starlink should be subsidized and I
> damn sure hate the way it is subsidized today - it harms some rural folks
> much more than others.
>
>
>
> Christopher Mitchell
> Director, Community Broadband Networks
> Institute for Local Self-Reliance
>
>
> MuniNetworks.org <http://www.muninetworks.org/>
>
> @communitynets
>
> 612-545-5185
>
>
>
>
>
> On Thu, Mar 4, 2021 at 2:47 PM Ernesto Falcon <ernesto at eff.org> wrote:
>
> This just came across my desk and was filed at the FCC earlier.
>
>
>
> It projects that by 2028 Starlink’s capacity will start to hit its limits
> when measured against 20-30% annual growth in consumption needs, which
> sounds right to me. It is this question of whether your network has the
> capacity to stay ahead of the demand curve for the long run is why I wrote
> this piece (
> https://www.eff.org/deeplinks/2020/06/why-slow-networks-really-cost-more-fiber)
> since often the slower capacity constrained providers will argue that they
> are * cheaper* than fiber so give them the tax money to build.
>
>
>
> This is part of the larger fight over whether the federal government
> should be subsidizing Starlink at all.
>
>
>
> --
>
> Ernesto Omar Falcon
>
> Senior Legislative Counsel
>
> Electronic Frontier Foundation
>
> Office: 415 436 9333 ext. 182
>
> Cell: 202 716 0770
>
>
>
> _______________________________________________
> CalFiber mailing list
> CalFiber at lists.eff.org
> https://lists.eff.org/mailman/listinfo/calfiber
>
>
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