341–350 of 496 posts
More detail here: https://www.cnbc.com/2022/08/25/spacex-and-t-mobile-team-up-... "T-Mobile users will be able to use messaging, MMS and certain messaging apps, from remote points across the lower 48 states, Alaska, Puerto Rico and Hawaii and even some remote points in the water. Eventually, the service will work with voice, Sievert said. T-Mobile plans to include the service in its most popular mobile plans but did…
space based global coverage scares the shit out of me, especially when its 100% commercial interests. Thought you could be untrackable off grid? Think again. Think you can be in an RF free zone, anywhere on planet? Nope. There is no "off-grid" when your grid is literally LAT+LONG 100% data access sounds awesome until you realize that its no longer "surveillance state" and its "surveillance planet"
100% off grid sounds awesome until you have a medical emergency.
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The idea is that airplane mode is a farce, and even if you put yourself into airplane, there is still a back-trickle... can anyone disclaim this? What are the anechoics of an airplane mode phone?
They should be identical to the typical spurious emissions standard. Airplane mode is a common way to quickly test spurious emissions before spending tens of thousands on an external lab to certify your device. I'm sure there's some sort of RF magic you could use to get range with 25uW radiated, but it sounds difficult and unnecessary when no one actually uses airplane mode in regular life.
Guess what the biggest RTLS radio thing-a-majigger BLUETOOTH - and BT pings, triangulation etc...
Ever wonder why an iphone will tell you they "temporarily disabled bluetooth when you hit that switch for just 24 hours??
So they can re-enable (it was never disabled, you still have wifi on yes?) more accurate surveillance in 24 hours...
More detail here: https://www.cnbc.com/2022/08/25/spacex-and-t-mobile-team-up-... "T-Mobile users will be able to use messaging, MMS and certain messaging apps, from remote points across the lower 48 states, Alaska, Puerto Rico and Hawaii and even some remote points in the water. Eventually, the service will work with voice, Sievert said. T-Mobile plans to include the service in its most popular mobile plans but did…
All bets are on centralized and/or proprietary ones that can afford to pay for the privilege. I have been saying from day one that Starlink is well poised to end net neutrality.
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you can't create "extra powerful antennas" in a cell phone. it's physics, and antenna gain is driven by size.
And then you need to design it in a way that it’s not blocked by somebody’s hand when they hold the phone.
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Oh man, wait till you hear about GPS.
GPS satellites broadcast data, and the GPS receivers (e.g. your phone) only receive. That means that they are completely invisible to the satellites. You are tracked on your phone because it is connected to the Internet somehow, so it can send your location. But with only a GPS receiver (my Garmin running watch for instance), you are completely invisible.
> Think you can be in an RF free zone, anywhere on planet? Nope.
It seems OP wants to be 'signal free'. Which, since GPS is already not happening anywhere on the planet.
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That is a good suggestion, thank you. Unfortunately when I’m out of the backyard it means I am doing a ton of work that doesn’t benefit by my carrying an extra device around
The CellSpot is something you install; you don't carry it.
More detail here: https://www.cnbc.com/2022/08/25/spacex-and-t-mobile-team-up-... "T-Mobile users will be able to use messaging, MMS and certain messaging apps, from remote points across the lower 48 states, Alaska, Puerto Rico and Hawaii and even some remote points in the water. Eventually, the service will work with voice, Sievert said. T-Mobile plans to include the service in its most popular mobile plans but did…
Certain messaging apps... All bets are on centralized and/or proprietary ones that can afford to pay for the privilege. I have been saying from day one that Starlink is well poised to end net neutrality.
Or not.
App like Silence (https://silence.im/) have been able to do secure e2e messaging using SMS as transport layer for almost one decade now.
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A combination of orbital debris and astronomy issues. A big antenna means it's more likely to be hit by other satellites, and it'll be brighter. There's a good chance this might mean these are limited to the ~350 KM shells, which will deorbit faster (limiting debris risk), and will go into sunset sooner.
Is that an actual concern? Honestly sounds kinda nonsensical to me but I don't know enough about antenna size in orbit regulation.
Astronomy issues: https://en.wikipedia.org/wiki/Satellite_flare#Mega-constella...
Orbital debris: https://en.wikipedia.org/wiki/Kessler_syndrome#Potential_tri...
Nobody bothered to look at the details.