690/186000= 3 mS one way. So 6 mS best case scenario time of flight. But
that is only if you are right next to the down link station and the
satellite is directly overhead. I would guess that the average slant range
will be 3-4 X that distance. Still 4x 6 mS is only 24 mS. Plus processing
delays.
But if you are having to go from satellite to satellite via laser that
distance could go way up. Still pretty cool. Lots of very smart people
being given the freedom to invent cool things. It is fun to be alive during
this era.
I was involved earlier this year in evaluating the purchase of a telephone
company way out on the Aleutians. I told them that starlink will be the
best technology to serve the island. Not the answer they wanted from me but
I believe it even more now then when I said it.
-----Original Message-----
From: fiber...@mail.com
Sent: Tuesday, November 3, 2020 9:32 AM
To: af@af.afmug.com
Subject: Re: [AFMUG] Starlink latency highly variable - up to 120 ms
Are you claiming the speed of light in vacuum is fake news now?
Jared
From: "Bill Prince" <part15...@gmail.com>
To: af@af.afmug.com
Subject: Re: [AFMUG] Starlink latency highly variable - up to 120 ms
We won't have "facts" for at least a year. In the mean time everyone is
blowing smoke.
bp
<part15sbs{at}gmail{dot}com>
On 11/3/2020 7:57 AM, fiber...@mail.com wrote:
> From: "Bill Prince" <part15...@gmail.com>
> To: af@af.afmug.com
> Subject: Re: [AFMUG] Starlink latency highly variable - up to 120 ms
>> I call that BS. It means they can route the traffic to the nearest end
>> point. I think it will make a massive difference.
> You can call BS all day long til you are blue in the face, it won't
> change facts.
>
> The minimum end user latency is dominated by the RF space segment
> which is currently averaging 40 ms. There are promises about lowering
> this, but nobody has ever claimed any numbers lower than 20 ms.
>
> It means jack all to the end user if Starlink uses a space laser to
> do one or two hops when they have to pay a 20-40 ms penalty to go up and
> down.
>
>
> Jared
>
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