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Existing smartphones will connect with new satellite constellations in 2023

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Re: Existing smartphones will connect with new satellite constellations in 2023

#191

Post by chinathrow »

shasheene wrote: post #3

SpaceX and T-Mobile are starting a trial in late-2023 to use unmodified handsets for text (and later, voice and data) with the Starlink V2 network to remove cell coverage dead-zones. [1] [2] It's achieved by "dedicating a slice of T-Mobile's Mid-Band PCS [1.9 GHz] spectrum, to be integrated into Starlink satellites, launched next year", with each Starlink V2 satellite hosting two 5-6 meter long cell-spectrum antennas…

Does that imply that our handsets can already be tracked from space, e.g. from the NRO?

Re: Existing smartphones will connect with new satellite constellations in 2023

#192

Post by sandworm101 »

chinathrow wrote: post #191
shasheene wrote: post #3

SpaceX and T-Mobile are starting a trial in late-2023 to use unmodified handsets for text (and later, voice and data) with the Starlink V2 network to remove cell coverage dead-zones. [1] [2] It's achieved by "dedicating a slice of T-Mobile's Mid-Band PCS [1.9 GHz] spectrum, to be integrated into Starlink satellites, launched next year", with each Starlink V2 satellite hosting two 5-6 meter long cell-spectrum antennas…

Does that imply that our handsets can already be tracked from space, e.g. from the NRO?

Does anyone think that isnt already possible? Have you seen the size of recent NRO satellites?

Re: Existing smartphones will connect with new satellite constellations in 2023

#193

Post by LeifCarrotson »

sandworm101 wrote: post #192
chinathrow wrote: post #191

Earlier quoted context omitted.

Does that imply that our handsets can already be tracked from space, e.g. from the NRO?

Does anyone think that isnt already possible? Have you seen the size of recent NRO satellites?

I have not, do you have a link?

I'm passingly familiar with the old Keyhole/Hubble optical satellites, but I didn't think we launched any of those recently after the Shuttle shut down. The more interesting tech is probably sigint-targeted radio analysis, where antenna and LNA design is more important than physical aperture, I wouldn't be able to tell anything about those with a physical dimension. What would the new satellites launch on?

Looking up https://en.wikipedia.org/wiki/List_of_NRO_launches doesn't give much detail, other than that they launched on Falcon 9 and Delta IV rockets.

Re: Existing smartphones will connect with new satellite constellations in 2023

#194

Post by sandworm101 »

LeifCarrotson wrote: post #193
sandworm101 wrote: post #192

Earlier quoted context omitted.

Does anyone think that isnt already possible? Have you seen the size of recent NRO satellites?

I have not, do you have a link? I'm passingly familiar with the old Keyhole/Hubble optical satellites, but I didn't think we launched any of those recently after the Shuttle shut down. The more interesting tech is probably sigint-targeted radio analysis, where antenna and LNA design is more important than physical aperture, I wouldn't be able to tell anything about those with a physical dimension. What would the new…

NRO Orion sats are probably the largest antennas ever in space (100m).

"These satellites at geostationary orbits collect radio emissions (SIGINT) and act as replacements for the older constellation of Magnum satellites. The satellites have estimated mass close to 5,200 kg and very large (estimated 100 m diameter) radio reflecting dishes."

https://en.wikipedia.org/wiki/Orion_(satellite)

Re: Existing smartphones will connect with new satellite constellations in 2023

#195

Post by peoplefromibiza »

wongarsu wrote: post #180
peoplefromibiza wrote: post #151

Earlier quoted context omitted.

> Strong leaders are able to marshal engineers to build things like the iPhone, electric cars, reusable rockets talking about tired takes... The real refreshing take would be acknowledging that these things would exist even without them and that the cult of personalities is such an antiquate way to explain the success (or the demise) of companies (looks like Americans have learned nothing from the fall of Stalin). An…

Countless inventions were inevitable, like the automobile or powered flight. The most obvious sign for this are inventions that happened independently in quick succession, or where there's debate who was first. You could also reasonably claim that the iPhone wasn't so much a "product invention", other phones with similar functionality existed, the genius was making a great version and targeting it at consumers instea…

> but Musks real achievement is SpaceX

Musk real achievements has been convincing people that he is better than he actually is.

> and even disrupt it

disruption should lead to jail time in modern democracies.

it is an euphemism for "break every possible rule until they catch us"

> Without musk this won't have happened

Without the nazis Wernher Von Braun won't have happened and consequentially the v-2 rocket engines and the "now working for the Americans" Lunar landing.

Without Musk we would not have Musk, which is a net benefit per se, if you ask me.

- Nov 21, 2022 - The Twitter boss laid off the workers late Sunday, further trimming a staff that has lost almost 5000 workers since Musk took over

- 07 Nov 2022 - Elon Musk Fires More Than 90% Of Twitter India Staff: Report

- Nov 17, 2022 - SpaceX fired 9 employees who organized an open letter describing Elon Musk's tweeting as a 'distraction and embarrassment,' report says

- May 20, 2022 - A SpaceX flight attendant said Elon Musk exposed himself and propositioned her for sex, documents show. The company paid $250,000 for her silence.

- In December, former SpaceX engineer Ashley Kosak published an essay meticulously detailing alleged sexual harassment at the company

- in June by a group of SpaceX employees releasing a statement saying Musk’s frattish behavior was “a frequent source of distraction and embarrassment” and asking Musk to stop being, well, a creep

- ‘How Many Women Were Abused to Make That Tesla?’ Seven women are suing the Elon Musk-led company, alleging sexual harassment

the last one is particularly interesting as a story, the billionaire frat boy pretending people to love the company, love him, never openly criticize what he does and says, like he's an Egyptian Pharaoh (actually they were more tolerant towards their people)

And wear the S3XY Tesla pants, because Tesla is S3XY I guess... (－‸ლ)

https://assets.rebelmouse.io/eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI...

How much more should we endure from someone who's clearly a sociopath before something really bad (O.J. 's style) happens?

of course he's saying that it's only a political campaign against him.

I'm not honestly convinced.

I will never understand the tendency to idolize bad people just because they had enough money to pull together something of dubious usefulness at best for the general public.

I often read heavy criticism against China here, but China is actually solving problems by manufacturing their affordable EVs, without having to rely on a billionaire deus ex machina to sell to the people as a savior.

Re: Existing smartphones will connect with new satellite constellations in 2023

#196

Post by gtvwill »

onethought wrote: post #171
lnxg33k1 wrote: post #147

Earlier quoted context omitted.

Amazon is shitty in shitty contexts, if you take Italy then every employee is unionised with benefits, in US you have this thing where you don’t want the government to be able to regulate but then expect companies to be good samaritan and foot the bill for maternity, sickness, public health, without paying taxes for it. Amazon is a good place, just need to regulate it

Bad people are actually good they just need more police??? Or everyone is bad - police are what make people good? I don’t know how to parse your statement.

Companies aren't people. Companies whilst run by people are not acting in the best interest of people as a whole only a small subset of people(stakeholders). Just like criminal gangs and how they lead to some small subsets of people requiring policing(criminals), the same applies to companies(some companies and how they act towards the societies they operate in if regulations were better made and policed adequately would certainly be classed as criminals).

Re: Existing smartphones will connect with new satellite constellations in 2023

#197

Post by justsomehnguy »

pontilanda wrote: post #77
martyvis wrote: post #66

Earlier quoted context omitted.

It's strange that you think that this is so unachievable yet we have things like Bluetooth, WiFi, LoRa and regular cell phone all working with relatively tiny amounts of power and discriminating from the noise generated by other nonparticipants. This would amaze anyone from before the 70s.

What? My wifi barely reaches the other side of my room with a wall in between, how am I supposed to think 350 miles is within reason? Even with clear sky, your signal to a tower an order of magnitude closer would be unusable. If you look at apple’s latest feature, even them, with specific hardware probably, requires minutes of open-sky pointing directly at the closest satellite, to transmit mere bytes of data. That t…

15 years ago you need a clear view of the sky to get a GPS fix, forget about the indoors.

You can't get an unassisted fix indoors now, but it's totally capable to get a fix near the window.

> pocket, indoors, with a 5G nearby

I assume this tech is to be used outdoors without a 5G nearby.

Re: Existing smartphones will connect with new satellite constellations in 2023

#198

Post by sorenjan »

They're called 5G non-terrestrial networks (5G NTN) which sounds like science fiction. Ericsson, Thales, and Qualcomm work together, but they don't have any concrete plans to launch any satellites.

https://www.ericsson.com/en/press-releases/2022/7/ericsson-q...

Re: Existing smartphones will connect with new satellite constellations in 2023

#199

Post by noisefigure »

peter_d_sherman wrote: post #93

>“Everything about a phone is built around time-synching on the order of 5 to 10 milliseconds,” Wisniewski says. “That works just fine with a tower that’s a quarter mile away, 3 miles away even, but not for orbit.” You know, that's an excellent point... I'm guessing (but not knowing!) -- that the farther a signal needs to be synched in space -- deep space for example -- the larger possible "time interval" / "time ske…

>"What does that radio signal look like at the endpoint, once it has traversed all of that space?"

Exactly the same, just much weaker.

The issue at play is just that light moves at a finite speed, and cell phones would rather assume the tower is dead (and switch to a closer tower) than wait a long time to get an answer. Not physics, just software.

Re: Existing smartphones will connect with new satellite constellations in 2023

#200

Post by willnonya »

midoridensha wrote: post #45
rolenthedeep wrote: post #30

Huh, I wonder how they manage to pick up the tiny amount of RF energy a normal phone can output from that far away, and through the noise of literally millions of other phones in the satellite's field of view. Gotta be some real weird RF voodoo happening in there.

I studied a little of RF engineering in college. It just seemed like a black art to me.

Money well spent eh
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