Re: [Starlink] Starlink for Tonga?

[Ben Greear <greearb@candelatech.com>]

90 or even much smaller percentage is a lot better than zero.

I wonder if they can point the dish towards the horizon to pick up the sat where
it can best see the functional downlink.  I realize the dish auto-points itself
now, but surely engineers that can design that can also design an 'off' switch
for that and let their on-the-ground folks do some hacking....

Thanks,
Ben

On 2/7/22 11:05 AM, Christian von der Ropp wrote:
> But in practice the satellites won't be sitting and waiting at the edge of this 940km radius. They are moving in and out the radius and the question is if 
> satellite density is high enough so that once the serving satellite loses its gateway link there's another satellite in the 940km radius which also covers 
> Tonga. And then this new satellite cannot be within certain elevation angles (~60-80° at 0° azimuth) where the geostationary arc crosses Fijian skies and the 
> gateway antennas have to seize emission. My gut feeling is that availability in Tonga would be <90% simply because it's too far out at the edge of a Fijian 
> gateway's range where there will be frequent service interruptions.
> 
> 
> Am 07.02.2022 um 19:51 schrieb Nathan Owens:
>> The current coverage radius of a gateway/ground station with a 25 degree minimum elevation is ~940km, so nothing in theory.
>>
>> On Mon, Feb 7, 2022 at 10:50 AM Daniel AJ Sokolov <daniel@sokolov.eu.org> wrote:
>>
>>     Hello,
>>
>>     I hope this is not offtopic: Starlink wants to build a ground station on
>>     Fiji to supply Tonga with internet.
>>
>>     The distance between Tonga and Fiji is about 750 km minimum. That's
>>     quite the distance.
>>
>>     What does Starlink have to do to make this work?
>>
>>     Cheers
>>     Daniel
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-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com