Re: [Starlink] Speaking of retirements...

[Noel Butler <noel.butler@ausics.net>]

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On 25/09/2023 18:06, Alexandre Petrescu via Starlink wrote:

> ah, sorry, probably we speak of the same thing.
> 
> I dont know whether or not the current in-car starlink devices require 
> an extra 12v-to-220V/110V adapter, or whether it's included, or 
> integrated.

Here, the  "RV" is identical to a household service, the same stuff, 
except your allowed to move around - not locked to the beam covering 
your home location.

> These 12V-220V/110V adapters are relatively big, necessitate fans.

If you're getting the "RV/camping/portable" equipment you'd want to use 
your 12volt system that nearly all campers and RV's I've seen with 
factory electrics come with (A couple RV models are 24v) so the DC 
supply woud need to accept 12 to 48 input, slightly less heat is 
generated if you use 24v and even less again if 48v since it only bucks 
it for the 12v parts of the circuitry in modem. You would not want to 
use an AC supply, defeats the purpose of the design of that service, the 
12 to 48v boost converters for the dish to work have decent heat sinks, 
a little better ventilation in the modems for that little bit of extra 
heat would be beneficial.

> If they are still needed for starlink in-car devices is probably 
> because of higher transmit power that is necessary to reach to 360km 
> altitude. They could reduce that in-car power need by bringing the sats 
> even lower, or other non-sat objects like HAPs.  Or by augmenting the 
> starlink sat antennas sizes.

They are identical hardware, no extra power is needed, since there is 
350  odd km's to the satellite, do you really think the 2 or so metres 
AGL for campers, would really need more power compared to the standard 
unit at 10 metres AGL, at say a house mounted dish :)  In early days I 
remember  quite a few youtubers using the stand on the ground in their 
back yard, and they probably still do.

-- 
Regards,
Noel Butler

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