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Zestyclose_Pickle511 t1_j6wa8gq wrote

Reply to comment by Malice_n_Flames in Samsung's S23s don't have an answer to Apple's Emergency SOS via Satellite by needlesfox

Uh... Why didn't he just call someone then? Why not use cell triangulation? Why would the iPhone save him more than any other phone? The SOS has to be activated, right?

Are you proposing that there is no service there? 1 hr from LA?

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mofa90277 t1_j6x9t6a wrote

He (Julian Sands) is lost on Mt Baldy. Mountains have crags and gullies and crevices. Radio signals operate line-of-sight, so they’re built where they’ll cover as much (but not all) area as possible.

Apple’s satellite feature uses a constellation of satellites, which orbit the earth and create a mesh pattern, giving essentially 100% coverage.

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drunkendrake t1_j6y2ygb wrote

They are giving it for free for two years, after that you'll have to subscribe to it. Realistically, who will subscribe to it?

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needlesfox OP t1_j6ygbti wrote

I also wonder if Apple will keep doing that. Like if you go from an iPhone 14 to an iPhone 16, are you going to get another two years free?

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Jake0024 t1_j6z191n wrote

Most people don't keep phones longer than that.

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apathyduck t1_j6yg5qj wrote

It is not "essentially 100% coverage" - far from it.

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Jake0024 t1_j6z16pt wrote

Then he shouldn't be hiding in a cave while trying to make phone calls. Satellite SOS probably wouldn't work in there either. If he's dead and can't get out of the cave, neither feature is useful.

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joremero t1_j6zjlxw wrote

>Radio signals operate line-of-sight

wut???

did you learn that in facebook university?

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mofa90277 t1_j7013oo wrote

Physics degree, Caltech, then over thirty years designing airborne radars, including five years designing satellite radar & satellite communications networks (i.e., X- and Ku bands). At those wavelengths, signals transmitted by your phone (a critical part of all this) are not going more than 10-20-ish centimeters deep in the best conditions. So, from the perspective of mountains, RF signals are “line of sight” in that mountains are opaque to RF signals.

This is different from wireless signals getting through house or apartment walls, because they’re basically made of air. (And signals are aided by reflections from a myriad other surfaces around typical homes).

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joremero t1_j725hlf wrote

I see, so it was an oversimplification.

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freakasaurous t1_j7650gv wrote

Line of Sight propagation is an actual concept. No simplification of anything

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Twombls t1_j6x5bep wrote

The Angeles national forest is in the mountains and the mountains tend to block cell service. LA is actually really interesting because its basically city. And then wilderness immediately next to it. Go over the first mountain ridge and into federally protected nature reserve and there will be no towers on the other side.

Keep in mind this isn't just like a tiny hiking area. Its a very large desolate mountain range

I live in a city in northern new england and an hour drive could easily bring me to some inhospitable wilderness with no cell service.

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Zestyclose_Pickle511 t1_j6xklhl wrote

Yeah, I'm thinking a cell phone satellite Sos system isn't to blame, still. But thanks.

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Rigruften t1_j6zdb45 wrote

When presented with facts as to why he couldn’t call help, your only rebuttal is “yeah well /I/ dont think so”?

In case you don’t live in the area, the West Coast has many large expanses of land that have zero cellular service. Emergency SOS via satellite (be it from an iPhone or any other device) is one of, if not the only, direct ways to call for help in a place like that.

Dude could’ve died without the chance to send an SOS, I’ll give you that… but it’s totally ignorant to ignore why it’s invaluable to people who need it.

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mollypatola t1_j703ym5 wrote

I can’t help but lol at the “you’re saying there no cell service 1 hr from LA.” If they think that’s shocking then I guess Seattle will probably throw them for a loop 😅 easily no signal within even a half hour drive

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Tsarinax t1_j6whqmx wrote

I’m not arguing this case since I know nothing about it, but you could easily lose signal an hour out of LA. You quickly get into desert like areas or into the hills and cell service gets spotty really quick. At least when I lived there it did, I’m sure it’s better but I could still see some blind spots especially in hills where folks go hiking.

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MorRobots t1_j6wnu46 wrote

This is something I wish there were PSA's about:

When you have no Service, you likely may still be able to call 911.

911 calls rides on all carriers and is given priority by the towers regardless of the subscribers service provider. It also rides on all the cellphone standards as well.

The tower will actually drop subscribers to ensure the 911 call gets connected.

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Twombls t1_j6x5ulk wrote

Its very possible there was just no service at all.

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Zestyclose_Pickle511 t1_j6whvwd wrote

Yeah, I guess the landscape does change fairly rapidly there.

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Twombls t1_j6x92ho wrote

Yeah something people dont realize is a lot of big cities on the American west are built right at the foot of huge mountain ranges. People tend to get themselves onto shit because there will be expanses of wilderness the size of a small European countries that are easily accessible from a trailhead in a realitivley suburban area.

It will be a warm summer day at the trailhead but once you pop over the first ridge it will be a blizzard. The place where the donner party happend. One of the snowiest places in the usa. Is like just over an hour from Sacramento

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Jake0024 t1_j6z1i1w wrote

> just over an hour from Sacramento

Not by wagon

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acroman39 t1_j708fv7 wrote

The SOS function activates automatically.

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WingedGeek t1_j71niv6 wrote

I live on the west side of Los Angeles and none of the three carriers can get me more than 1 bar of degraded (e.g., LTE) service in my home or on the grounds. It's a fluke of topography (I only get a couple of FM stations and no OTA television). I'm ~3 minutes from the 10 and 405 freeways. It's very possible in the mountains there's no service, 1 hour from LA.

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