Re: [Starlink] Starlink Roaming

["Dick Roy" <dickroy@alum.mit.edu>]

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Thanks . very interesting and not surprising!

 

  _____  

From: Nathan Owens [mailto:nathan@nathan.io] 
Sent: Monday, February 21, 2022 1:59 PM
To: David Lang
Cc: Dick Roy; starlink@lists.bufferbloat.net
Subject: Re: [Starlink] Starlink Roaming

 

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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>>>> Starlink mailing list
>>>> Starlink@lists.bufferbloat.net
>>>>
>>>
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