Re: [Starlink] Starlink Roaming

[Nathan Owens <nathan@nathan.io>]

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Per the debug data, the dish has GPS, a Gyroscope, a Magnetometer, and an
Accelerometer.


On Mon, Feb 21, 2022 at 1:32 PM David Lang <david@lang.hm> wrote:

> On Mon, 21 Feb 2022, Dick Roy wrote:
>
> > What is involved in "setting the service address"??
>
> fairly simple, enter it in the website or contact support
>
> > Do dishy's have IMUs (aka some means for determining attitude w.r.t. the
> > local gravitational vector and true or magnetic north) or GPS modules (or
> > both)???
>
> we know the first version has a gps module in it, and you really need a
> phone to
> set it up (and the phone app has access to your location)
>
> David Lang
>
> > I am somewhat skeptical that the system would be able to locate a UT just
> > based on zero tilt transmissions from the UT. I am guessing something a
> bit
> > more complex is transpiring, like some rudimentary form of SDMA (aka
> > spatio-temporal resource allocation).
> >
> > RR
> >
> > -----Original Message-----
> > From: David Lang [mailto:david@lang.hm]
> > Sent: Monday, February 21, 2022 12:53 PM
> > To: Mike Puchol
> > Cc: 'David Lang'; 'Larry Press'; dickroy@alum.mit.edu;
> > starlink@lists.bufferbloat.net
> > Subject: Re: [Starlink] Starlink Roaming
> >
> > that's what happened when I tried to use it ~60 miles away, but when I
> tried
> > to
> > use it ~25 miles away I got the attached error very quickly.
> >
> > I've used it at a couple locations 5-10 miles away without a problem
> >
> > I asked starlink support about roaming and it's currently not supported,
> you
> > can
> > change the registered location, and if a slot is available, they'll
> approve
> > it
> > and guarantee service (view of the sky permitting). But when you do that
> you
> >
> > give up the slot at your home location and are not guaranteed to be able
> to
> > move
> > it back.
> >
> > They told me that I could try it, and it may work, may be degraded a
> bit, or
> > may
> > not work at all. They do plan to add roaming capabilities in the future
> (my
> > guess is that the laser satellites will enable a lot more flexibility)
> >
> > David Lang
> >
> > On Mon, 21 Feb 2022, Mike Puchol wrote:
> >
> >> From what I have observed, there is a new "roaming" flag in terminal
> > properties that determines roaming capability. Mine is false, and I could
> > not get service if I set the service address too far.
> >>
> >> The way the UT does it is, after startup, it moves to zero tilt, then
> > searches and registers with any passing satellite, likely using a
> low-rate,
> > omnidireccional beacon. The backend then informs the terminal if it is
> out
> > of its service address, and if so, it will just sit there doing nothing
> > (although it does periodically send stuff).
> >>
> >> Best,
> >>
> >> Mike
> >> On Feb 21, 2022, 23:31 +0300, Dick Roy <dickroy@alum.mit.edu>, wrote:
> >>> What does your contract say about the "where" you can expect service
> from
> >>> your dishy? I suspect the system is capable of tracking all users at
> all
> >>> times they're in coverage which is how they could/would enforce a
> >>> contractual limitation/constraint.
> >>>
> >>> RR
> >>>
> >>> -----Original Message-----
> >>> From: Starlink [mailto:starlink-bounces@lists.bufferbloat.net] On
> Behalf
> > Of
> >>> David Lang
> >>> Sent: Sunday, February 20, 2022 11:30 PM
> >>> To: Larry Press
> >>> Cc: starlink@lists.bufferbloat.net
> >>> Subject: Re: [Starlink] Starlink Roaming
> >>>
> >>> tonight I took it to a friends house about 25 miles away and within a
> > couple
> >>> min
> >>> it gave me an error message saying that I wasn't at my assigned
> location.
> >>>
> >>> David Lang
> >>>
> >>> On Mon, 21 Feb 2022, Larry Press wrote:
> >>>
> >>>> Date: Mon, 21 Feb 2022 07:22:44 +0000
> >>>> From: Larry Press <lpress@csudh.edu>
> >>>> To: David Lang <david@lang.hm>,
> >>>> Jonathan Bennett <jonathanbennett@hackaday.com>
> >>>> Cc: "starlink@lists.bufferbloat.net" <starlink@lists.bufferbloat.net>
> >>>> Subject: Re: [Starlink] Starlink Roaming
> >>>>
> >>>> David brought his dish to my location -- about fifty miles from his
> >>> service loacation and in a different cell and it could not connect. We
> > had a
> >>> clear view of the entire sky. He speculated that that was because it
> was
> >>> registered to use a specific ground station that was out of range at my
> >>> place. Does that seem reasonable?
> >>>>
> >>>> Larry Press
> >>>> ________________________________
> >>>> From: Starlink <starlink-bounces@lists.bufferbloat.net> on behalf of
> > David
> >>> Lang <david@lang.hm>
> >>>> Sent: Monday, February 14, 2022 12:29 PM
> >>>> To: Jonathan Bennett <jonathanbennett@hackaday.com>
> >>>> Cc: starlink@lists.bufferbloat.net <starlink@lists.bufferbloat.net>
> >>>> Subject: Re: [Starlink] Starlink Roaming
> >>>>
> >>>> I asked starlink about temp service away from my registered location,
> > they
> >>> said
> >>>> I have two options
> >>>>
> >>>> 1. formally change the service location (if approved, guaranteed to
> > work,
> >>> but
> >>>> you aren't guaranteed to be able to change the service location back)
> >>>>
> >>>> 2. best effort, set it up and try it. Service may perfect, or may be
> > worse
> >>> (all
> >>>> the way to non-existant) depending on how many other dishes are in use
> > in
> >>> the
> >>>> area.
> >>>>
> >>>> I've done some limited testing with my dish within about 15 miles of
> my
> >>>> registered location (in both cases with less than optimal sky views)
> and
> >>> it's
> >>>> worked without a hitch. I plan to do a test further away this weekend
> > (but
> >>> in a
> >>>> less populated area, so I have high hopes)
> >>>>
> >>>> David Lang
> >>>>
> >>>> On Mon, 14 Feb 2022, Jonathan Bennett wrote:
> >>>>
> >>>>> It appears that there is now a system in place for Starlink to
> > re-connect
> >>>>> even if you are outside your official service cell. For those of us
> who
> >>>>> want to use Starlink on vacations or other trips, this is quite the
> >>>>> development.
> >>>>>
> >>>>> --Jonathan Bennett
> >>>>>
> >>>> _______________________________________________
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> >>>>
> >>>
> >
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> >>>
> >
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