Starlink Direct to Cell
direct.starlink.com
direct.starlink.com
Stuff like this has existed from companies like garmin for some time. This is very cool, though.
Here is when this was announced: https://www.youtube.com/watch?v=Qzli-Ww26Qs
Pretty cool! Also kindof funny to see the TMobile CEO trying to hype people up and Elon sortof reigning it in.
This is not something that could, for instance, replace your cell phone carrier.
In the video at 21:00 Elon clarifies: 2-4 megabits per cell zone.
I mean, I fire up and use lynx from time to time for a couple newspapers and magazine. Beyond evading some paywalls, it also presents it the way I want it: a wall of text. “Slow dialup” to me is 2.4kbps.
The HN crowd could get a lot done over a console.
So it will be faster than my carrier..
They are targeting voice which can go really low, but a moderately optimistic ~100kps is vastly better than 0. Much below that and the number of people using it is going to drop near 0.
The difference between no communication and "take 5 minutes to get 1kb of text" represents a huge, huge jump.
I’m usually in wifi range and being able to have a few kb/s of comms is basically the lifeline I need.
Most of my cell activities are cached on my phone: podcasts, maps, some increasingly out of date weather.
Would be even cooler if it could “broadcast” some regular stuff like news and traffic updates (dunno how that could integrate with Waze…)
The first kb/s gets me a loooot of value and each additional is less useful than the last. Data is very much diminishing returns.
Dunno what frequency this is running at, but if it’s in the 10s of GHz, I’m assuming licensing doesn’t get tooooo pricey given how problematic it is on land-to-land links.
This is presumably about 4G/LTE, so mostly between 0.4-2.5 GHz or so.
yet. Apple (and android baseband suppliers, “Google” may be the wrong name to mention here), have the ability to take relatively worthless spectrum and make it widely useful in a way nobody else can.
I wonder how spectrum allocation works for C-Band satellite broadcasters that just blast continents with their signals. Grandfathered?
Hence why the spectrum should be pretty cheap (along with its incredible susceptibility to obstructions… which is less of an issue when you’re going roughly “up” without pesky considerations like curvature of the earth)
And you do get a ton of gain with a small antenna at those high frequencies.
I could see it kinda working, at low frequencies. They are not that far away and there's not many things blocking the signal besides your roof.
> Problem with slow data rates is that they clog up the channels.
Yes, we must protect the tubes! :)
(e.g. we can't build a solar panel that works perpendicular to the sun (or nearly perpendicular) using phased array technology because there just isn't much solar radiation hitting the "dish" in the first place)
They have already invested hundreds of millions into Globalstar's ground station hardware [1] and future satellite launches [2].
[1] https://www.apple.com/newsroom/2022/11/emergency-sos-via-sat...
[2] https://spacenews.com/apple-loans-globalstar-252-million-for...
Presumably that's why SpaceX needs to ride on existing mobile operators: they already own LTE spectrum and can allocate a chunk of it for satellite services. It would be a lot of work (and cost) for SpaceX to go out and buy LTE spectrum in every country they want to operate in.
Afaik older cellular protocols were relying on zero overlap between base stations serving the same frequencies, leading to a nice coloring problem that would seriously suffer if someone tried to fit in LEO cells.
But even then, most carriers have many bands/channels (EARFCNs) available - and presumably only a small slice of bandwidth is needed for this service considering it's (initially) only for text messages. Finding 5 Mhz on one of the higher LTE frequencies wouldn't be so hard for many carriers, even if it does need an exclusive channel.
It was only 1G and 2G (GSM) that needed to avoid overlap.
As far as I know, these are possible even without a SIM card in the US and most other countries.
> The first kb/s gets me a loooot of value and each additional is less useful than the last. Data is very much diminishing returns.
And it’s arguably priced accordingly: The difference between metered plans and unlimited data is pretty small these days in my observation.
> The difference between metered plans and unlimited data is pretty small these days in my observation.
That’s if you have a competitive environment. In Canada, the cellular providers are the fixed-line internet providers and very much don’t want to tank one for the other.
(But maybe Freedom Mobile, without much of a physical wireline footprint, will pull a t-mobile and go all-in on a 5G wireless home internet plan… we can pray)
Oh, yeah, all of these considerations only apply to a somewhat functioning/competitive market, unfortunately.
I have my fingers crossed for you! I've had friends of mine live in Canada for a while – it sounds as bad as (or even worse than) what was going on in Germany in the 2000s, when mobile operators had spent ridiculous sums on 3G licenses and almost ruined themselves in the process financially and as a result just sat out on infrastructure investments for the next decade or so.
I don't need to be able to stream Netflix when I'm in the backcountry, it's just that my wife insists I need to be able to get a helicopter if I break my leg.
Now we need app developers to log off their fiber-served wifi when writing messenger apps, and log into a high-latency, low-bandwidth, high-packet-loss network instead so Messages will actually open instead of whatever it's trying to do to upload my location history and download contact pictures...
I had to rearchitect an entire file synchronization and uplink system for resilience while sitting in a hotel room in the middle of a blizzard during the shortest days of the year so I could deploy software for clients up there.
I found your uplink. IDK the date of the photo.
https://uploads.alaska.org/blog/Carl-Johnson-Blog/Kotzebue/_...
There's very little bandwidth you need when you're in the backcountry, especially given some reasonable pre-download of maps and other information.
Direct to phone satcom is neat and I can see plenty of applications for it but I know that I wouldn't stake my life on it simply due to it being a consumer-grade phone.
I do carry a spare battery etc. I suppose I could keep my phone in a rugged case in my pack and use something else for pictures and maps but that's sort of getting away from the idea of one device you always have right with you.
I think your concern is warranted as vehicle accidents and falls may call into question the durability of the device in question however based on the mix of accidents and especially the prevalence of medical misadventures its probably a worthwhile feature even if you don't opt for something desired for extra durability.
Another logical concern is battery life. A huge chunk of non-fatal misadventures are day hikers and the dominant cause is actually dummies wandering off trail as opposed to injury.
I laughed at that picture of the mountaineer in full Alpine climbing attire, on a tablet.
What's he doing on it, checking his email? The view behind him isn't good enough?
I do carry an InReach when I hike in remote areas but if my phone could make satellite emergency communications, I'd stop paying $144 a year for the InReach.
If InReach dropped the price to $50/year, then I'd consider still subscribing to it.
I got a 4g nokia dumb phone just for this occasion - few days of battery life, sturdy build, good for small trips/hikes where you usually have signal or as a backup phone
for me, even just driving to the next town over, or going for a bike ride that takes me less than two hours from my house, there's places where the cell connection cuts out. i'm not packing an inreach for an hour drive, but it's nice to know that if i need it i can count on my cell phone.
I like how I can tell an iPhone that a wifi AP is a “low bandwidth” one so it holds off on many tasks. But you can screw yourself over if you tether a computer, even a Mac.
FWIW, it's perfectly possible to simulate arbitrary levels of bandwidth/latency with a variety of tools even while having a fiber connection. For example, Macs have long had the "Network Link Conditioner" tool as a free utility included with the Additional Tools for Xcode package, which then allows simulating configurable bandwidth, latency, and packet loss. There are similar tools for Linux as well, tc is powerful. Most firewalls with quality traffic shapers also allow at least the first two at the network level, I used that on OPNsense to simulate a VSAT connection with 750ms latency and 4/.5 to a specific VLAN so that we could just connect systems and then see how applications worked. It's been awhile but it was eye opening. A nice thing about that approach is that then you can just connect devices to a given VLAN, which makes testing back and forth super easy. Wired is trivial of course, have a switch where each port is a different test VLAN, but even for wireless if you have WAPs that support PPSK/MPSK, then hopping between test VLANs just means reconnecting with a different password. Simulating packet loss with a network device seems the be more niche and complicated and I don't know if any firewalls put a GUI on it. tc queue disciplines can be used though so any Linux device with two network ports can sit inline and modify the traffic to simulate loss/latency, an RPi would be fine for that.
I agree it'd be nice if more app developers would test under less than ideal conditions, particularly since it's so trivial to do so. I think most simply don't think about it though, same as many GUIs (web or local) not testing for stuff like various types of color blindness.
That's the way real networks behave, and what real users have to manage with.
Yes it is perfectly possible, but it’s very difficult. Having just gone through this process I can attest that this is not something the average “app developer” is going to be capable of doing, at least on Linux and Windows.
The raw tools are there, but they are complicated, poorly documented, and require network engineering knowledge on top of software development knowledge.
Probably there is some nice package to wrap up the whole “generate a virtual network and add latency + packet loss between these two end points”, I just never found it.
Linux has a built-in command: trickle
https://linux.die.net/man/1/trickle
https://stackoverflow.com/questions/10328568/simulate-limite...
As for how hard it actually is: iOS has already been explained, the Android emulator has network latency and speed simulation right in the GUI, as do most web browsers. And there's alway the option to switch your phone to 2G only in the settings and/or go into the basement or elevator.
This is the real problem - there are deadlines and most projects don't even consider working in questionable network conditions. Developers aren't going to put in the extra effort when it doesn't contribute to the job they are asked to do.
I always at least _ask_ in the requirements gathering stage for a new mobile app: "how much effort do we want to dedicate to app performance/reliability under marginal network conditions?"
As it turns out, pretty much all mobile app owners are as apathetic about that as most mobile app developers. (On the other hand, once you've got a reputation for being able to handle those sorts of flaky network edge cases, you get more and more work for the sort of apps that benefit from them. The downside of that is it's never the flashy resume-building-apps that come to you for this.)
shrug
Disagree, it's no harder than any other linux subsystem, you can use `tc` or you can attack it a different way by using virtualization then messing with it at the vde layer. I've added storage and network random latency for testing code before, took a day or so to get working perfectly, but now it's in a shell script.
Hm, alternatively.... you're right, it's very difficult. You should hire a software engineer, such as myself, to do it for you. ;-) ;-)
Both Firefox and Chrome dev tools also have built in throttling of network connections. https://blog.nightly.mozilla.org/2016/11/07/simulate-slow-co...
The tools exist and they're easy to use. Most people just don't bother.
Well, I sure wish Apple would make use of that functionality themselves once in a while.
It's frustratingly impossible to enqueue an iMessage message while out of signal and have it be automatically delivered once back in cell coverage. Bizarrely WhatsApp, a third-party application (with all the background execution restrictions that go with that), manages to do just that!
You should try WhatsApp - there really are not many messenger choices when you have unreliable 2G(!) connectivity. For all the faults of Meta, WhatsApp seems to be the only company that cares about people with bandwidth measured in kbps, sometimes fractions thereof.
That can’t be said of iMessage.
Edit: I sometimes get a chuckle when they say "Look at this cool picture I took", and then receive the picture some days later when the conversation thread has moved on. I guess they'd have stayed in thr coverage area for long enough for the entire image to upload.
Sometimes sms failover creates further problems because when travelling you’re more likely to have intermittent wifi than intermittent sms access.
I hoped that Signal's use of HTTP was as a fallback in case a direct connection could not be established to use a more "compact" protocol, but I possibly don't remember correctly what I've read...
WhatsApp was built with low-bandwidth/high-latency/high-packet-loss in mind well before Meta acquired them.
I suppose we can give them vague amounts of credit for not making those use cases worse since the acquisition.
It used to work just fine on 1kbps.
Now it is pretty much unusable over dialup or GPRS.
For example, messaging a contact with multiple devices connected means that your phone has to encrypt your message to each of their clients independently.
Cheap, fucking indestructible, and you could probably bludgeon someone to death with it in a pinch.
It also has a thermal imaging camera which is surprisingly handy for stuff like “finding where in the garden my cat is hiding at night” or “figuring out what’s overheating” or monitoring the state of my compost bin.
My InReach (I have an Explorer, not the mini) is an exceedingly rugged bit of kit with an effectively infinite battery life.
It is, by no means, a sleek or svelte device like my iPhone but if I fell down on a trail and broke all my fingers (or had severe frostbite or something) I'm fairly confident I could operate the device with some combination of my teeth, nose and toes.
I'm also fairly sure that it will keep functioning even if I had accidentally dropped it off a cliff, in a blizzard, into an ocean.
The mini is basically the same kind of rugged so you know exactly what I mean :)
The battery also lasts basically forever.
I turned mine on about 48h ago before a trip and it's been on ever since and I just checked and the battery is at 86% with 2-minute tracking intervals.
Anyway I am still very happy for the starlink service for the 99% of people who don't have an InReach, it will definitely save lives, I'm just not yet ready to ditch my InReach.
Before getting an InReach, confirm a 406MHz emergency beacon doesn't fit your bill [1][2]. (I have this one [3].)
You can't text a loved one. But with no subscription, a years-long battery and powerful radio that works around the world, you can call emergency services to your precise location.
[1] https://www.sarsat.noaa.gov/emergency-406-beacons/
[2] https://www.rei.com/learn/expert-advice/personal-locator-bea...
[3] https://www.rei.com/product/161982/acr-electronics-resqlink-...
Any emergency beacon is better than none, but two-way communication can be a literal lifesaver. I hope that the Starlink system is eventually linked into our 911 infrastructure and available to anyone with an LTE phone regardless of carrier.
Also to communicate on-the-fly decision-making to inform potential SAR - "I'm making good time, going to head up this extra peak before continuing the planned route."
I'm happy to have a cell phone backup to the inReach, but I don't see this Starlink offering as a replacement. That goes double if you're out in winter. Phone batteries aren't great in the cold.
You should have no problem with that anywhere in the world as long as you keep it in an inner pocket. Perhaps pack wired earphones just in case you need to make a long call while keeping the phone itself warm.
Notably the battery should not be charged below about 5C. If you do, it will be permanently damaged.
This depends on the specific battery chemistry. The BMS should prevent the charging scenarios which would damage the battery. For some it's 0C not 5C. Some can handle charging below 0C.
Even the cheapest chips from TI and ST seem to include it. And modern cell phones often advertise extra-fast 20W+ charging, so I doubt they're using the cheapest chips.
They've been the only ones that don't just turn off in really cold temperatures, even without babying them in warm pockets.
The general ruggedness is also pretty good to amazing, depending on how fragile your previous phones were. For example: it survived a ~10 meter (32ft) drop on rocks, whereas everyone was convinced it was done for.
To be honest I first thought it would be a gimmick, but being able to see heat / rough temperature degrees has proven itself quite useful.
But you don't really realize it until you have it available. It's kind of like having another sense available to you.
Random examples of where it was useful:
- finding shitty chargers/electronics which were really hot while doing nothing -> wasted power
- spotting a water leak before it was visible (think cold spot in the middle of the ceiling)
- checking car tire alignment (one side hotter than the other)
- finding buried hot water pipes
- finding where cold air is leaking in during winter
- spotting damp areas
and probably others that I'm forgetting right now
I had that in my hometown in eastern France at 800m altitude, a town a few km away has a record of -41. -15/-20c was almost a yearly occurance when I was a kid
Once I was stuck with a ridesharing car opened and off in -20C because my old samsung s8 throttled so bad I couldn't even reboot it. It was completely unresponive with the flashlight still on discharging it even faster.
I couldn't leave the car too, being responsible for damages during the rent.
After a bit of time I remembered that to force shut down newer androids you have to hold volume down and power. Why would they not keep it as a long press is beyond me.
If Starlink's solution is really completely unmodified LTE, I'd expect 911 calls to work regardless of being a T-Mobile subscriber, just like for existing terrestrial networks (where you can dial 911 even if your carrier does not have signal in a given location, or even entirely without a SIM card).
The satellites can correct for "global" latency themselves (unless there are higher-level parts of the LTE/E-UTRA radio protocol that can't tolerate such long latencies, e.g. ARQ timers).
For GSM as a half-duplex technology, there's also the matter of devices not being able to transmit and receive at the same time, but I believe the same principle applies: As long as the timing differences between different devices in the same spot beam isn't too large, that's something the satellites could globally correct for.
The same probably applies for doppler corrections.
And couldn’t the satellites mostly adjust for that, given that the relative doppler shift should be pretty constant between mobiles in the same spot beam?
https://eudl.eu/pdf/10.1007/978-3-319-66628-0_41
doppler shift is not a constant for a stationary observer from Earth.
With PLB, satellites can't accurately measure where the PLB is; the search and rescue crew will find you by local radio reception.
With a satellite messenger, the gadget knows its own GPS location to a pinpoint and can send that as part of the SOS signal. And you can text the SAR staff and say "I fell and I'm now stuck on a tall ledge halfway up the cliff".
I guess this is the first time it's occurred to me that hikers and backpackers and such carry them too, which is odd because I hike and backpack.
I picked up the InReach after finding myself 200 miles offshore in a sailboat without an engine or battery power (which meant no VHF or electronic navigation equipment or autopilot or even red/green lights for others to see us at night) nor any way to make power
I assume the 406 Mhz beacon has a range of a few miles?
Other than the compass (which was only visible in the day time) the EPIRB was the only piece of equipment we assumed to work on the aforementioned voyage. We of course didn't test it as we were able to make it back safely, but I should probably learn more about how it functions.
We were sailing like demons. One of my biggest regrets of the trip was that we didn't have any wind or speed instrumentation to let us know how fast we were going, but it felt extremely fast.
They’re very safe, last something like 10 years, and aren’t really expensive (compared to “I need to know what direction I’m going and have no way to do so, or can’t see it”).
There are also lots of established shipping lanes you could find that would be relatively densely traveled and give you periodic feedback for which direction to go. A bit more dangerous due to collisions without lights but as long as your retroreflector is hoisted, big ships should see you clearly on radar. plus you’ll generally be swapping sleep shifts and always have someone manning the helm on the sailboat, though seeing large vessels at night can be somewhat more difficult.
The only other complicating factor was that due to the August Florida heat, nobody really had the luxury of sleep for the first couple of days.
My experience in Marine SAR is that this is no longer true. Apps like Navionics, SeaPilot, etc - often without any backup at all - are by far the most common form of navigation.
There were lots of red flags before finding ourselves in squarely over our heads -- an overheating motor was explained away as having had an undersized thermostat installed. Plausible enough. The lack of a bimini in August in Florida was just forgotten, but led to pretty significant overheating to me. The autopilot not working we didn't realize until about 15 miles offshore. That the autopilot was draining all the other batteries we didn't realize until we lost navigation lights. Etc. Etc.
This was embarrassingly recent, but suffice to say a LOT of lessons were learned. The boat was foreign enough that I accepted too many "explanations" as comfort when they should have been a reason to abort. Failures compounded and voila, we're now 15 hours away from civilization flying a spinnaker through thunderstorms at night and positively hauling ass.
Eventually we got the owner to appreciate our discomfort enough and how over our heads we were to head to safety in Charleston (he'd still just been heading east, which was baffling -- but apparently it is not everyone's first instinct to go to safety when life-threatening failures crop up) but that brought its own perils -- coming into a crowded channel at night without navigation lights isn't advised. We were shining a flashlight onto the sails, but the flashlight would change modes if it wasn't held steadily enough. One of the storms we'd sailed through had killed the owner's phone as well as his phone charger, so the little bits of navigation we had were precious, but necessary coming into shallower coastal waters. A cargo ship coming out of harbor kicked us out of the channel just enough that we ended up grounded and stuck pretty squarely about a half mile away from restaurants, but late enough on a Sunday that there wasn't any other traffic we could hail down. (A radio would have been lovely in that case)
I was sunburnt and heat-stroked enough that despite guzzling water constantly, I hadn't urinated in 24 hours, and though we were in relative calm, the totality of circumstances, I used the last of the dwindling battery on the last usable phone among us to call the coast guard for evacuation. The owner of the boat stayed behind.
To paraphrase Cheryl Strayed -- If you'd asked me at any point in the journey, I was absolutely miserable, but on the whole it was miraculous. Gained a ton of skills. Learned a ton of red flags to look out for. Experienced a lot of firsts, not the least of which included a crash course in celestial navigation. And being 200 miles offshore and awake the whole night during the Perseid meteor shower was absolutely brilliant.
I'm glad you lived to tell the tale, stranger.
Honestly glad my wife was aboard as it lowered my risk threshold enough to get me to want to abort.
Sounds a lot like ocean racing sailboats under normal circumstances.
I quit ocean racing (after about 5 seasons) when I had a sudden realisation that the only part that was any fun in the last 3 days was sitting in the bar after it was over and talking about it. And there were ten times as many non-crew people there enjoying that with us as there were crew on the boat I raced on.
I've been waiting with bated breath since the announcement of Starlink in the hopes that it could knock out the three satellite services I use the most: InReach Mini for text comms and location sharing, XM Radio, and XM Weather.
I'm really looking forward to when this becomes available for individuals and not just businesses. Also really looking forward to 12v Starlink equipment and affordable marine plans.
tc qdisc change dev enp1s0 root netem delay 300ms 200ms loss 10% 80%
This command delays all packets in and out of the wired interface enp1s0 300ms, +/- 200ms, with 10-80% packet loss.Are you sure about that ? According to man tc, it only works on egress.
If I’m reading the docs correctly the satellites will offer SMS service directly so you won’t need an app, you’ll just need your carrier or roaming provider to support it.
This is all incredibly clunky and one of the weakest points of iOS in my view. How can it be so hard to provide a switch that lets me use SMS proactively?
While SMS would be great for low-bandwidth use cases like this, most people don't use it to the point where having contacts accessible with it on the other end would be an issue.
or also any web app.
In a Rails app I recently started working on for a customer I saw many controller actions starting with a call to a method called simulate_delay_for_development. I checked the code and when run in development mode it basically sleeps for a random value between 0.1 and 3.0 seconds.
I'm sure that there are gems for that or proxy servers sitting between the browser and the server, but it's a cheap and effective way to make every developer experience delays with zero installation costs.
Chrome can also throttle the CPU power: https://www.wikihow.com/Throttle-Your-Browser-for-Testing
No, this is entirely different from what Garmin and others sell.
Those devices require dedicated hardware (and a subscription plan) to talk to satellites. Also you can only send and receive text messages. (no voice, extremely limited data (like weather reports))
What SpaceX are doing uses a completely normal phone, with a completely normal phone plan. It's text for now, but voice and data are coming.
Text is announced for 2024. And personally, I'd be really surprised if that actually works out for unmodified phones sold today. I've written more about that here: https://news.ycombinator.com/item?id=37848212
I’d be willing to be the ratio of cellphones to sat phones is > 10,000 to 1
From the graphic in the article:
> Text: 2024
> Voice and Data: 2025
> IOT: 2025
Satellite data to run infrastructure (even cc processing for cards) where there is zero connectivity or power for hundreds of miles will likely become at least one order of magnitude more accessible price wise.
https://support.apple.com/en-us/HT213426
https://support.apple.com/guide/iphone/send-your-location-vi...
With iPhone 15, they also introduced the ability to call for roadside assistance from AAA via satellite too. (I’m not sure if this is also available on 14 now or not.)
> If your missing device can’t connect to the internet or has little to no battery life, the Find My app can still help you track it down using the Find My network — hundreds of millions of iPhone, iPad, and Mac devices around the world.
So this isn't going to help you in the wilderness.
The passage you quoted is talking about the iDevice-to-iDevice communication that can happen behind the scenes allowing you to find a lost phone in the wilderness if someone else so happens to walk by the phone.
Having a limited number of plain text message requests would be nice as well, maybe there will be more options once they add paid tiers.
https://semiconductor.samsung.com/news-events/news/samsung-e...
There was a lot of back and forth over the system, but it did not help at all. The thing that saved her was one 40 character message to a friend. Because apparently you get one of those, and no replies...
https://www.climbing.com/news/iphone-sos-button-saves-injure...
I currently pay for an inReach Messenger, and use it on a weekly basis. The $12/mo base cost is peanuts for what it actually provides me.
https://www.cnet.com/tech/mobile/iphone-14-emergency-sos-fac...
Speculating obviously, but that article makes it sound like Apple might have tried do something else and that whatever they came up with is more equipped to deal with frontcountry issues.
Sounds like I should keep packing my inReach.
If it were my life on the line, I'd carry 2 different PLBs: probably a Garmin and an inReach.
Disclaimer: Ex Trimble Nav Ltd. radio group here. :]
Even E911 locating in the US just doesn't work at all with nonzero and unknown combinations of phones, carriers, and jurisdictions. US LEOs have almost universal, real-time locating ability from N km to sub 1 m accuracy if it's in range of a single tower of any phone without a warrant. If a phone can send an SOS to a comm satellite, while there's a recent good fix from 3+ GNSS satellites, then that's useful.
The risk to avoid will be over-reliance on a consumer grade cell phone as a substitute for the ruggedized and proven EPIRB system.
Given the value in an emergency, I’d consider that fair!
And if you really only care about calling emergency services in the backcountry or at sea, you can always get a PLB (which have no recurring fees at all).
It's tracking vehicles (big and small) in third world countries with the aim of support, crime detection, asset recovery and law enforcement.
Terrestrial cell coverage is a function of population density much more than anything. In fact, I'd expect rural areas in the US and Candada to benefit from this just as much, if not more.
In the wilderness of Yukon and Alaksa we found we didn't need to call emergency services, but it was very handy to contact friends.
"I'm very stuck, but fine, come get me".
"I shot a moose, it would be great if you'd come and help me quarter it."
"We're perfectly fine, but delayed a couple of days."
Things like that are what we used our gen 1 spot for, and it was great.
Importantly, with most current PLBs you don't actually see if your emergency call has been received at all, which can make an important difference for survival (i.e. it informs the decision whether it's best to stay put and try to hold out, or whether getting to higher ground with clearer sky is essential).
Fortunately, at least that part is changing: Cospas-Sarsat (the service listening for PLB emergency calls) can now use Galileo satellites as a return channel to send an acknowledgement to the newest PLBs in some regions [1].
It doesn't address the "type of emergency" concern, though – not everything requires a helicopter.
[1] https://www.euspa.europa.eu/newsroom/news/first-galileo-retu...
I really don't want to press the PLB emergency button unless my life is in danger and I need to be rescued by helicopter. PLBs are not good at all for "my car has failed and I'm 15 miles down a forest road".
An InReach Mini 2 will cost you $130/year more than a PLB over 10 years of ownership.
What's your life worth to you?
How independently resourceful are you?
Is your name Bear Grylls?*
* Even he flubbed a parachuting emergency and nearly bought the farm. In fairness, so did my paratrooper grandfather as he busted 2 knees and his neck... he had to wear a neck support most of his life.
---
It's vital that PLBs be correctly registered and continually updated (2 years AND at every details change) with reliable emergency contacts who are always responsive. For multiple reasons, I would always call the one or more of PLB emergency contacts to let them know you're heading beyond cell service. US EPIRB operators register them here: https://beaconregistration.noaa.gov/RGDB/index
Consider a 406 MHz PLB [1][2][3]. Several hundred dollars. But no subscription fee.
They're terribly marketed, a vacuum Garmin et al happily fill. And you can't send text messages. But as an emergency beacon, they are best in class. (Garmin transmits at <2 watts. Cell phones maybe 125 mW. 406s, meanwhile, scream at the sky at 5+ watts; that's in class with a cell tower.)
[1] https://news.ycombinator.com/edit?id=37850377
[2] https://www.sarsat.noaa.gov/emergency-406-beacons/
[3] https://www.rei.com/product/161982/acr-electronics-resqlink-...
COSPAS-SARSAT is usually a secondary payload of other satellites, is store-and-forward (i.e. if you're far from a ground station, it might take a while for a satellite to forward your emergency signal), and for most (but see [1]!) PLBs does not offer a return channel, i.e. you won't know whether your signal actually made it through or whether you'll need to keep moving to get line-of-sight.
> Garmin transmits at <2 watts. Cell phones maybe 125 mW. 406s, meanwhile, scream at the sky at 5+ watts; that's in class with a cell tower.
They use exactly as much transmit power as they need to. Importantly, Iridium modems get instant feedback on whether their transmission has made it through and can retransmit if required. Screaming isn't always the best way to be heard :)
[1] https://www.euspa.europa.eu/newsroom/news/first-galileo-retu...
I think Iridium can handle four calls at a time. In any case, you don't want to be reduced by Siberia from Alaska.
> use exactly as much transmit power as they need to
Garmins have a ceiling. Terrain attenuates. There are more places you will be alone with a Garmin than a 406 MHz PLB.
> Iridium modems get instant feedback on whether their transmission has made it through and can retransmit if required
406 MHz does this [1]. Would love to hear anecdotes, ideally from SAR, where this saved a life versus providing comfort.
[1] https://www.acrartex.com/products/resqlink-view-rls-personal...
It supports over a thousand simultaneous calls per satellite! And that’s voice calls; text messages like those used by InReach need much less resources still.
> Garmins have a ceiling. Terrain attenuates. There are more places you will be alone with a Garmin than a 406 MHz PLB.
What “ceiling”? As long as you have line-of-sight, the transmit power is enough to reach the satellite, and given polar orbits, you almost always do if you can see a bit of sky.
If you don’t have line-of-sight, COSPAS-SARSAT won’t work either, would it?
I assume the higher transmit power there is mostly to enable reaching satellites farther out (like the GPS and Galileo satellites, which are in MEO).
> 406 MHz does this […]
In some regions only, I believe, and with some beacons. It is a very important development though!
Sorry, I meant inter-satellite. Iridium’s inter-satellite capability is highly limited and irrelevant for emergency comms.
> As long as you have line-of-sight, the transmit power is enough to reach the satellite
In ideal conditions. 5 watts vs something like 1.6 makes a huge practical difference.
> In some regions only
I believe with 100% coverage with Garmin. There is a reason 406 MHz is the requirement for aviation.
It absolutely isn't, where are you getting this from? Both routine and emergency communications regularly traverse inter-satellite links. For a while, Iridium only had a very small number of operational ground terminals; nothing would work without inter-satellite links in that scenario.
> In ideal conditions. 5 watts vs something like 1.6 makes a huge practical difference.
Can you name a scenario where you'd get a signal through to a satellite with 5, but not 1.6 watts? This is absolutely negligible; even just rotating your transmitter ever so slightly will make a much, much bigger impact.
I have never not received an Iridium signal when there was line-of-sight to the satellite.
> There is a reason 406 MHz is the requirement for aviation.
Aviation and marine safety of life specifications care a lot about redundancy and availability. COSPAS-SARSAT is conceptually very simple and does not require ongoing subscriptions, so it makes for an excellent fallback option if other communication methods are unavailable.
For example, for passenger or cargo ships, you need at least two other bidirectional means of long-distance communication when crossing oceans. For polar routes outside of geostationary satellite coverage (i.e. Sea Area A4), the only real options (certifiable under SOLAS/GMDSS regulations) are HF radio and Iridium.
If you also need a PLB, don't cheap out on a safety product.
But if you're wanting reliable Gigabit unlimited data globally for <$1000/month, then you're asking for something for nothing.
Because, as the FCC is likely to realize, once SpaceX (a US company) is acting as a common carrier for other service provider networks, they will end up being required to carry at reasonable cost and without deprioritization anyone who wishes to do business upon their network with customers, under equitable terms to (in this case) T-Mobile and others — just like the old copper-line DSL networks of the nineties. Space is a limited resource and SpaceX’s exclusive network will ensure a regulatory climate that Elon will loathe, and I expect be compelled under telecom law to accept and obey. I can’t wait to see it.
Happily, anyone could write the FCC and ask what their plans are regarding CLECs and SpaceX today — or, for example, ask questions like “Which US governing body regulates the SpaceX common carrier network?”. https://www.fcc.gov/consumers/guides/filing-informal-complai... is ready and waiting :)
It's ridiculous that you think anyone deserves to own the space around our planet
Technically true, but even with the full planned ~40k Starlink constellation we'd be nowhere close to the limit.
If you're putting a satellite right next to one of Starlink's, using the same frequency, how'd you communicate with it without the two interfering with each other?
I’m no radio expert but I think this was solved when they managed to handle a hundred thousand connected cellphones in a single stadium.
In other words, it depends on some base stations being significantly farther away from a given device than others. That’s not the case for satellites.
Having more than one satellite above the horizon really only works when both antennas are (highly) directional. Cell phones aren’t.
Why is that a data point and why are you convinced it will be true? I get that people somehow feel "betrayed" by the man, but this presenting this type of analysis taints the rest of your outlook.
Anyways.. he has the monopoly, he can set whatever price he wants. Common carrier doesn't mean you have to give it away at some imputed "commodity" price. I'm sure he'll find a way to make it work.
Given that, I find it hard to take at face value anything you’re saying and that it’s much more likely that you’re trying to mislead people.
Also space is even less of a “limited resource” than completely unpopulated areas of the Earth is or the entire ocean’s surface is. It’s three dimensional rather than two dimensional. Any single orbital altitude has more surface area than the entire earth.
There are so many constraints on objects in orbit, the degrees of freedom so limited, that carrying capacity is much smaller than you might suspect (though probably larger than our earth-bound intuition).
Just for starters, each item in orbit traces out a path (an orbit!) that can not intersect with the path of any other object, without carefully considering phasing to make sure there are no collisions.
We keep items separated by kms (hopefully!) because there is too much variation and uncertainty in orbits.
You can use different altitude shells to fit more items in, but they take longer to orbit and increase latency, so you have to be able to deal with that.
Based on degrees of freedom, orbits are far closer to 2 dimensional than 3 dimensional.
The Starlink constellation has already been described as being passively de-conflicted, meaning that, as designed, no Starlink satellite had to maneuver around any other Starlink satellite. The positional accuracy of the Starlink satellites is known by SpaceX to the precision of meters rather than kilometers. I’d need to dig it up the source again but Starlink satellites pass within kilometers of each other daily. Starlink already has over 1000 satellites at several of its altitudes.
While yes it’s true they have to avoid space debris with a wide berth I don’t really include that in the argument as that is a true statement no matter how many or how few satellites are in any given orbit.
It’s more a matter of poor control and poor altitude maintenance of other satellites. That’s a matter of regulation rather than a matter of an actually limited resource. For example Starlink currently uses 10km or 7km gaps between its shells but they vary in altitude significantly less than that and could be closer if allowed to be.
However! It's disengenous to say land is 2d and orbits are 3d so there is more space in space. That
> space is even less of a “limited resource” than completely unpopulated areas of the Earth
Consider: how many Starlink constellations could reasonably be deployed in low earth orbit? Probably less than 1000, but maybe 10000-100000 (that would be a lot of satellites, but let's be generous).
Now how many Starlink constellations could be deployed in unpopulated areas of the Earth? Putting aside that they'd be useless, you could fit literally millions of constellations next to each other.
Space is big, but heavily constrained. One of the reasons something like an orbital ring would be so cool if we could get it to work - tons of space that is not constrained by orbital mechanics the same way free flying stations would be.
The scarce resource here is globally-available L-band radio spectrum (potentially spatially multiplexed, if you have steerable beams on both ends, or only one satellite in view at a time and are using spot beams).
> It’s three dimensional rather than two dimensional. Any single orbital altitude has more surface area than the entire earth.
Space is three-dimensional, but lines-of-sight are two-dimensional. Even if you have steerable beams on both ends (which aren't that precise either, unless you're using laser beams), there's only so much non-overlapping sky above.
I am all for innovating in carrier networks, and I’m all for charging for access through those networks — so in that, my motives and Starlink’s align! And since Starlink makes the same dollars per user whether the user is T-Mobile or a Local MVNO, I don’t see how innovation in their satellite network suffers in any way.
Surely that regulation forces the carrier to do something it otherwise wouldn't have (or it would be pointless), thereby suggesting a misalignment of incentives.
To selectively partner with only the highest bidder, and to sell them exclusivity to increase that bid, and therefore maximize the profit earned from their monopoly.
The CLEC system was put into place to ensure that this sort of maximization wasn’t permitted on the copper networks that were owned by regional monopolies. Starlink has a regional monopoly on LEO satellite cellular right now, and so they’re subject to the same principles.
If Starlink was a B-corp, or a co-op, I wouldn’t be so certain this sort of thing would end up being necessary — but Starlink as a United States for-profit corporation is compelled to prioritize the profits over all other concerns, specifically including the quality and price of service offered to customers. So, the US regulations forcing non-exclusivity will absolutely be necessary — just as we found with US West’s copper in the CLEC era — and those inescapable US regulations are not in alignment with Starlink’s desires.
I wonder why the limitation to coastal waters? They've been cracking down on offshore sailors using Starlink with the RV/Roaming plan, too. By all accounts it worked fine, but SpaceX wants to charge significantly more for an offshore plan.
It certainly can't be a congestion issue.
There aren't any ground stations in the open ocean, so it all has to be routed between satellites to hop to one that has a connection to one. So it is a congestion issue.
It's either that, or whatever the logistics are around the cell boundaries.
Neither T-Mobile nor Starlink own global frequencies in a suitable frequency band to offer offshore services.
That's one of the big benefits e.g. Apple gets out of the box for going with Globalstar, and Qualcomm for partnering with Iridium: They each own around 10 MHz of prime (i.e. L-band) global spectrum.
But somebody recently mentioned here that in order to provide satellite services in a given country, you still need a local license...?
I'm not sure how existing mobile satellite service providers fit in here – do Inmarsat, Iridium etc. just have a license in (almost) all countries worldwide?
You need a local license because radio frequency is considered a national resource, so each country owns the radio space about its land and they get to govern it.
Practically, satellites won't switch frequencies every time their spot beam footprints cross national boundaries, so I suppose it's more of a matter of allowing/not allowing service in a given country (as determined by either the mobile or the satellite?).
Maybe an analogy would be ICAO's (another "specialized agency of the UN") "Freedoms of the Air" [1] – they define the terminology, but it's still up to individual (or blocs of) nation states to actually grant them to each other, ratify recommendations etc.
What Globalstar, Iridium et al have agreements are agreements with wide array of countries but not all, for example India only allows Innmersat based devices , North Korea allows no one and so on.
OST does not cover radio frequency, only outer space( which is not well defined) ownership and activities, while the Bogota declaration failed to make progress for the equatorial countries at the UN, there are no major dispute on who owns the spectrum in the space above their national territories, most agree it is a national resource. Also to note there are many countries who are not signatories and/or not ratified the OST mostly in Africa.
Do you know if this is different for e.g. aviation applications or international waters? I also wonder whether Starlink (and other non-GEO operators) actually stop transmitting over countries where they don't have a license for their spectrum.
Nevertheless: Practically, Inmarsat, Globalstar, and Iridium do hold exactly these crucial L-band spectrum rights in almost all countries; Starlink doesn't yet.
The national ICAO will "manage" practically used part of VHF and HF(pilots would use High Frequency over the ocean for greater propagation) and probably few other parts of the spectrum in this region they of course do not own the spectrum in that region.
Starlink and other communication satellites indeed will not transceive in a country without a license. In their case they transceive and not just transpond (broadcast). If any base station is attempting to connect to the satellite in a forbidden country by definition that is illegal and they will not acknowledge or open the connection.
This is why SpaceX is does not allow operations in disputed regions like Crimea, they do not want to be in position of recognizing sovereignty of disputed land for either Ukraine or Russia.
Related note: companies also don't want their civilian tech used for military applications, reason why DJI doesn't want their drones sold to either Russia or Ukraine. If they start getting classified as dual use by countries, they will be subject to export controls, sanctions etc.
That part is answered on the website:
> Direct to Cell works with existing LTE phones wherever you can see the sky. No changes to hardware, firmware, or special apps are required, providing seamless access to text, voice, and data.
It's also notable that this service isn't available yet, it starts (optimistically) sometime in 2024, probably very late 2024.
It’s all a question of data rates, transmit power, encoding, and (mostly in the geostationary case) large antennas on the satellite end.
I'm more interested in Doppler and timing advance. There's only limited Doppler correction in LTE - the satellites must be compensating for it. Although actually, I suppose they're mostly moving perpendicular to the direction of signal.
Think more “you can reliably send a a short text message” than “you can quickly load up yahoo.com”
There, the answers are:
> What frequencies does this operate at?
1-2 GHz. These are also common terrestrial mobile communication frequencies.
> How well matched are the antennas in most phones?
That I don't know for Iridium (I think they're at least somewhat specialized), but for Globalstar, Apple is able to pull it off with their newer iPhones.
> How much more power are you using to be able to do this?
Iridium uses around 1-2 W – that's significantly more than LTE (I believe most devices only use about 125 mW, but I wasn't able to find precise numbers), but about the same as GSM/2G, which current phones largely still support (although I'm not sure whether they use that much transmit power practically still).
The move from 60 to 22 (or 21) satellites was to maximize the normal Starlink service on the satellites. (21 are on board when launched from the west coast and 22 are on board when launched from the east coast.)
[1] Can't find the one I had read, but this one published just a few minutes ago also mentions this https://cordcuttersnews.com/spacexs-starlink-is-looking-for-...
> The companies had targeted beta trials at the end of this year following the launch of Starlink V2 satellites, according to CNET.
Which also contains a link to an article from 2022 that was published during the original announcement of the T-Mobile partnership. However those satellites didn't get launched because of the delays of Starship.
Other devices they do communicate with (for text messaging) are also cell phone sized or smaller and don't have external antennas.
I don't know that – do you, and if so, from where?
But what I do know is that it's possible for very small devices to directly talk to LEO and even geostationary satellites with transmit powers comparable to terrestrial applications.
L-Band is used exclusively for the satellite uplink. The power is significantly more than the majority of LTE/5G bands, but I see it's not the highest, actually that crown goes to GSM. Interesting. Seems like the much bigger reason that they don't need a large antenna is the other factor I mentioned, data rate, which is extremely low, while Starlink is targeting 2-4 Mbps. Plus there's the requirement to point the phone at the sky, while Starlink has stated that their service won't require that and should work from a pocket or inside a car. SpaceX has also specifically described the required satellite antennas as "really quite big".
Also, I'm not suggesting that the antenna is a "reflector dish" as you specified. It's a phased array, just much larger than the ones on previous Starlink satellites.
I’m not surprised that GSM uses higher transmit power than Iridium/Globalstar actually – GSM phones were basically portable microwave ovens compared with modern mobile radio technologies.
But if you look at the table closely, the 5G C-band frequencies have even higher power outputs than Globalstar/L-band too! That's presumably because they are so wide, though (channels in band n77/n78 can be up to 100 MHz wide; compared to > 2W for 0.2 MHz wide channels for GSM, that's nothing).
Also, for bidirectional communications path losses are usually symmetric, and since satellites are usually severely power-limited compared to terrestrial base stations, blasting dozens of watts of transmit power from the mobile device wouldn't help with receiving the satellite's response.
> Also, I'm not suggesting that the antenna is a "reflector dish" as you specified.
Ah, I misunderstood then; I thought that's what you meant by "foldable antenna". I thought phased arrays are mostly solid-state (at least they are on comparable last-gen LEO satellites). But it makes sense for Starlink to do that; every bit of antenna aperture presumably helps when trying to talk to unmodified 4G mobile devices from space.
"Starlink satellites with Direct to Cell capability have an advanced eNodeB modem onboard that acts like a cellphone tower in space, allowing network integration similar to a standard roaming partner."
It looks like all that's new here is the website: the service itself has been announced for over a year now. Here's one story about it from March: https://www.engadget.com/spacex-is-getting-ready-to-test-its...
And here's a story covering the initial announcement in August 2022 as a partnership with T-Mobile: https://www.engadget.com/t-mobile-starlink-partnership-01253...
- T-Mobile [US] (we knew this one)
- Rogers [CA]
- KDDI [JP]
- Optus [AU]
- One NZ [NZ]
- Salt [CH]Not surprised to see them signing on instead of Bell/Telus; Rogers has much poorer coverage in the sticks than Bell/Telus.
> To support ongoing innovation in the High Altitude Platform Station (HAPS) communications industry, Loon transferred a number of stratospheric ballooning and networking patents to partners working in similar fields.
Hard to say for certain of course without any public records with regards to an IP transaction or patent/FCC filings showing the transfer of patent assignees. Google and Fidelity invested $1B in SpaceX previously (2015), which leads us to the thesis that Loon died because of Starlink.
[1] https://news.ycombinator.com/item?id=37806035
[2] https://x.company/projects/loon/
[3] https://storage.googleapis.com/x-prod.appspot.com/files/Loon...
[3] https://thenextweb.com/news/google-celebrates-project-loons-...
My estimate is that (at least initially) it won't be actual texting (i.e. SMS) – unmodified LTE and 5G seem way too verbose to be able to handle the constraints of a much higher number of devices per base station, combined with the significantly higher transmission delay and free space path loss.
One of the IoT spinoff standards of LTE and 5G seem much more plausible candidates – they are built with very similar constraints (extremely low received signal strengths, many devices per base station etc.) and are already being successfully used for satellite applications. I've been testing one device using geostationary satellites myself.
But that would require updates to both the baseband firmware and OS of current or future phones (if not entirely new basebands!), and at that point it's going to be very interesting to see whether Apple (accounting for a very large share of the US market) will play along with that or rather push their own (Globalstar-based) satellite solution.
That's a matter of pricing, isn't it?
Also, won't this primarily be used where very few people roam? Otherwise they could just use the regular land-based LTE infra.
Remember: SpaceX can't just magically offer cheaper mobile coverage globally; they don't own any rights to use 4G/5G frequency bands. These are typically very expensive.
It makes a lot of sense for SpaceX to partner with mobile operators who own these rights but don't utilize them very well in sparsely inhabited areas.
Not necessarily: Users don't pay for signalling traffic.
I could imagine even just rejecting attachment requests of thousands of roaming clients could easily saturate a single satellite cell. Existing mobile-to-satellite protocols are much more optimized in that regard (and limited in that there are simply not that many clients out there looking for signal).
And again, wouldn't this primarily be activated in very desolate areas?
That's fine if you need to tell a few terrestrial clients to go away every few minutes or so (until they finally give up until the next reboot or so), but I could imagine it being much more tricky when you're talking about cell sizes with a diameter of hundreds of kilometers.
> wouldn't this primarily be activated in very desolate areas?
It would be enabled globally (to fill in coverage gaps etc), I'd assume – and even in very remote areas, you might easily have a sizeable number of devices per square kilometer. A typical cell size (for Iridum, as an example) is 250 miles of diameter – that's the area of New York state! And that's not even considering overlaps of remote and densely populated areas.
You see this being deployed to service every customer of the partnering mobile networks, wherever they may be.
I see this being deployed to service those customers who aren't covered by existing and much cheaper land-based LTE-coverage from the partnering mobile networks.
Even when a given network does not support your operator/SIM card, your device will attempt to connect to it at least once (and hopefully cache the resulting rejection permanently and not keep trying in a loop).
But in case your device does support the satellite-based service (e.g. as a T-Mobile customer in the US), it would then attach to the satellite network if no terrestrial service is available and send periodic location updates etc.
That's normally not a problem, since cell sizes on earth are limited (either by geometry/physics or intentionally by network capacity planning), and by extension also the ratio of signalling chatter per cell.
I'm just not sure if unmodified LTE clients can be convinced to be less chatty only from the network side.
They certainly seem to have big ambitions for this project – they've supposedly secured 85% of Globalstar's bandwidth [1], and I doubt that calling for ambulances or tow trucks, or users sharing their location manually (once per 15 minutes at monst) requires that much.
My guess is that iMessage over satellite will become part of some of their higher-tier iCloud plans, in line with Apple's "services" ambitions and as a way to test the waters of providing network access directly.
[1] https://appleinsider.com/articles/22/09/09/apple-taking-85-o...
I've brought up Apple/Globalstar because it serves as a baseline for what's already possible, as well as it being a likely future competitor.
And I wouldn't read too much into (in)compatibility at this point: Neither Starlink nor Apple have disclosed how their respective solutions actually work. Starlink might function as a "dumb pipe" analog frequency-shifting relay just like Globalstar.
They do mention « eNodeB » on the page, so, that's LTE.
So they might end up technically meeting their target of "unmodified current devices" being able to use this, given that Samsung announced they'll be integrating 5G NTN IoT into some of their devices – but I highly doubt it would work with regular old (broadband) LTE or 5G phones.
The link budget, latency, and number of devices per cell/spot beam are significantly different for satellite applications and have so far required adapted protocols.
These are all not huge adaptations, and the hardware (antennas, LNAs, power amplifiers etc) of modern phones are definitely capable of it, but this entire endeavour is so much easier if you can just slightly adapt the cell phone side of things as well.
5G has made these adaptations (for both NB-IoT and "regular" 5G, i.e. NR); I'm just somewhat doubtful Starlink will be able to deliver the same for completely unmodified 4G/LTE.
The page then stated regarding LTE bandwidth: "We will provide 2-4mbps download or uplink per beam. [...] Each beam will cover a 50km diameter on the ground."
[https://web.archive.org/web/20230402230610im_/https://conten...]
This has already been the case for most people for decades. The change is a matter of degree rather than some new paradigm shift.
If you must for emergencies, bring it turned off locked away, and promise yourself you will only take it out in an emergency. But then you didn't need one for emergencies before it was possible, so I'd argue you still don't need one.
No one goes somewhere far away, explicitly for being disconnected, that’s an implicit goal.
Otherwise, you can just turn off your phone do I have to leave it.
I, umm, know a thing or two about going remote without communications.
No, people didn't have phones, satellite messengers etc. Nor did we have penicillin or water filters, and as a result, people sometimes died from (by today's measure) trivially preventable causes.
So that's not a very good argument for not bringing a phone or satellite beacon/messenger on a hike – permanently connected and livestreaming, turned off and at the bottom of your backpack, or anything in between. The choice is all yours!
The problem with getting disconnected is that we don’t want to do it, we are afraid of missing out and we usually invent other activities to rationalize it.
In a sense it’s a bit like enjoying the radio in traffic, taking the long ride home after work. This is not something that you would rationally do unless you have to, but there are some benefits that people are still seeking from it.
A lot of people today expect that most travel maintains some degree of connectivity back home, especially if something urgent/serious happens.
Yeah we will. Why wouldn't we?
> It’s not the L3 connectivity or texts from loved ones that harms us.
Yeah it is. The fact that you feel you need to "announce" yourself real time is depressing. Can you not deal with being away from your loved one. Are you that clingy that you need to be in touch 24/7? Or is it trust issues?
"Hi hun; love you, ill be back in a few days" does wonders for a relationship.
What's wrong of explaining your vacation after you touch base?
>> We won't all be addicted to digital cigarettes forever.
>Yeah we will. Why wouldn't we?
That's why I called them cigarettes. Smoking cigarettes used to be ubiquitous. We have dramatically reduced smoking and it's now more normal to not be addicted to cigarettes.
As we better understand how things negatively impact our health we gradually adjust our behavior. This makes sense from both a natural selection stand point and by simply observing consistent advancement in healthcare.
I don't claim it will go away entirely but it will be more socially acceptable to disconnect from the bad parts and you'll have better tools and support to do so.
> Yeah we will. Why wouldn't we?
We will until the civilization collapses due to humanity's smartphone induced apathy.
These all sound more like L8 problems, to be honest.
The human brain is not designed to handle that and is entirely abstract from normal pre-internet situations. Normal experience is low bandwidth input of mostly known self-reinforcing stimulus. A signal that's approximately analogous to 100% noise screamed at 120db does not improve the human condition. It just leads to mental breakdown and psychotic episodes.
Carefully filtered bias-reinforcing echo chambers are actually a good thing and are what we should be living the majority of our lives in. Having the option to not do that is a good thing, but it should not be the norm.
Libraries are not raw unfiltered samples of everyone's brains. They're carefully filtered and curated to provide maximal learning ability (with quiet environments to reduce distraction to allow focused learning).
We are also not evolved to handle constant streams of highly curated content, harnessing the psychology of addiction, leveraging our individual interests (conscious or subconscious) to advance other’s economic interests.
What we need: content curated by our chosen specified interests and quality bars, however refined we wish those too be, and completely agnostic otherwise.
You control your own experience.
Stop treating human brains like all-capable, all-rational, all-free-willed things. Stop treating any technology as a neutral tool. It's disgusting and harming.
Oh yea, my kidney definitely died because of a lack of willpower. Indubitably.
And to loop the analogy back – I don't think ubiquitous network reachability is ultimately a big problem; it's what we do with it: Social expectations around constant availability to respond, addictive/heavily gamified applications, etc.
Thankfully our shared thought that you can't be away from everything is not true: caves, anything underwater or dense forests around the world are totally inaccessible for any satellite devices.
Also, not sure if you've used any satellite devices but even in most conditions you're still pretty away from things. You have to set up the device with a view of the open sky and wait several minutes for a text-only message of a handful of bytes. Using it in a Costa Rican rainforest was almost impossible.
https://spacenews.com/google-spacex-investment-is-900-millio...
(disclosure: googler, just something I've been curious about and figured someone here would have more insight on)
It was about $1b in 2015 after they made the investment - if you ignore other little sales/purchases, it had increased to $1.8 billion in 2017.
They then note "During the year ended December 31, 2018, the terms of a non-marketable debt security were modified resulting in an unrealized $1.3 billion gain" and then the balance sheet shows a non-marketable equity security, so they must have converted at that point. The value increased by $4 billion in 2018 and another $3 billion in 2019 -- though both include other investments they'd made in private companies.
By 2022, they had a total of $12 billion in unrealized gains in that category.. The majority of that is likely SpaceX so probably at minimum 10x'ed their investment?
FWIW you can use Starlink with a DC power supply and under volt it to get pretty decent power draw.
Edit: https://boathackers.com/starlink/#:~:text=I'm%20very%20happy....
They are saying they are using about 25W after the conversion.
That's how much Iridium and Globalstar (the two existing comparable LEO solutions) can do without large external antennas for current satellite messengers (Garmin InReach, SPOT, more recently Apple iPhones etc.)
Actually using 1-2 Mbps will likely remain unaffordable for a while even once it becomes possible, given the cell sizes and frequencies involved.
Starlink is much cheaper than that because it uses the Ka-band (which has tens to hundreds of times more bandwidth available for this application) and directional beams on both ends of the connection, vastly increasing spatial reuse.
Even if Starlink manages to provide much smaller cells (which is not trivial, especially with omnidirectional mobile devices as clients instead of phased-array dishes), we're talking several orders of magnitudes compared to a regular terrestrial cell.
We don't have "off-the-grid" cabins in the UK as much as I love one. To think you want to carry connectivity to somewhere remote where you could idle with nature is terrible.
You should be asking why do you need such a service.
Most people who visit this cabin do want to turn off their devices. That's the goal. When the cabin was built, we lived in a reasonable world where being un-contactable for a week was common. That world is dead.
We need reliable connectivity because without it many people could not travel to the cabin at all. They don't have the power to change the world they live in or their position in it. They may need to take a zoom meeting or respond to an email.
Instead of impertinently implying I am not aware of the downsides of this state of affairs I encourage you to articulate what you mean in a way that doesn't talk down to people.
P.s. The Uk does indeed have "off grid" cabins![1]
It shouldn't be. And that world could still be alive but we choose to keep it dead. Which is sad.
> We need reliable connectivity because without it many people could not travel to the cabin at all.
Maps. How did folk get to the cabin before the connectivity was abundant?
> They may need to take a zoom meeting or respond to an email.
Then don't go to the cabin if they need to take a zoom meeting, or respond to an email.
Could it in future allow for LTE speeds? Could it work in any place where regular starlink could?(assuming SpaceX ignores licensing rules for countries who says it's their territory/it's high seas/they got license).
What about 911/112?
I am not a member of a nation which is in very good relations with the nation of the company here (America), and for this sole reason I hate the centralization of power with progressing technology. Don't bother telling me X tech is actually decentralizing. Yes it probably is, yet please compare the modern world with 1000s to see the amount of centralization. In my country, in the case of a war, if Google Maps were to stop operating, many forms and a high percentage of the transportation and cargo delivery would grind to a halt. If Visa and Mastercard stop operating an even bigger chaos would immediately ensue.
Thank God we at least own the internet infrastructure.
A real gamechanger for emergency/SAR situations would be if one could enable the Starlink service from an iPhone _while_ in the backcountry vs. needing to set it up a priori...many people realize they wish they had an InReach once bad things occur. Don't imagine that is possible today.
[1] https://www.optus.com.au/about/media-centre/media-releases/2...
The point of cellular is frequency reuse. If your cell is huge that's one channel blocked for that entire area. You can't reuse the it within that area to serve more terminals with more bandwidth. So the system capacity will suck.
Number of simultaneous voice users would be limited to the capacity of a single channel for 2000 sqkm. Don't hope for much.
Regardless, if this works then infinite range robotics with just a 4G modem is now possible. Anyone wanna fly a solar powered RC plane across the Atlantic? :P
They are basically putting an LTE cell tower on the satellites. This can be used for very low-bandwidth applications, starting with just text messages.
They are not providing 100MB+ broadband via this connection.
I would've thought that an LTE tower would have more throughput, but I suppose they might need far more error correction than usual?
So it seems they have had the same thought on the usefulness for remote telemetry data.
I don't know a lot about LTE signals but given the distances to the satellite and wide coverage area each satellite is responsible for it makes sense that performance is significantly diminished compared to your local cell tower.
But since mobile phones don't really have directional antennas anyway (unlike Starlink terminals), having more than one satellite in sight above the horizon doesn't really help with capacity anyway. (You need steerable beams on both sides to make use of spatial multiplexing.)
Given the transmit power constraints on both sides of satellite-to-mobile, Starlink/T-Mobile will most likely be targeting the extreme low end on both bandwidth and modulation rates.
The site says "Voice and Data Starting 2025", I do wonder what will change by then.
"Data" covers a wide range that probably won't include streaming 4K YouTube at first.
Even mass produced, a "cell phone tower in space" is going to inherently be massively larger and more sensitive than a tower on Earth. It does however let providers/governments focus investment on where people are rather than needing to maintain very remote towers for the very few that use them.
I’m also a little bit grossed out by all these competing satellite networks filling up LEO, and having to more or less continuously launch new satellites to replace the existing failing ones.
(Yes, there are politics involved there. That's part of why I look forward to that being bypassed.)
Just listening on where devices are currently and the signal power strength (must be higher while calling/transmitting data) could be a major source of signal intelligence.
Starlink satellites are designed to be cheap(<$1M) and small in weight (~1,000Kg) and size(fit 20-60 in Falcon 9), and lot of the innovation is manufacturing at scale.
I am skeptical they come anywhere close to purpose built military satellites which costs upwards of $300-$400M[1] and are much larger in weight (5,000Kg-10,000+) and size (use full fairing ) and fly DH, Atlas as well and lever vertical integration. Given what we know about KH-11s, Trump photo tweet, the tech in the donated mirrors etc Military seem generation ahead in production tech not just experimental ones.
[1] There is some pork for sure in all government contracts, but not $299M worth.
The roaming charges in space are insane. ;)
- Iridium (partnership with Qualcomm)
- Globalstar (my bet is that Apple will buy them before too long)
- Skylo (using leased transponders on various existing GEO MSATs for 5G NTN; used by e.g. Bullit/“Motorola”)
- Inmarsat (pretty clunky phones for now, but they own a lot of L-band spectrum and are apparently one of Skylo’s partners for 5G NTN)
- Thuraya (regional only)
Starlink has always been primarily a high gain 4G/5G antenna.
There's Ku band phased array antennas that offer cell connectivity. Starlink isn't one of them
So at least for now, you're stuck with their overpriced wifi.
Many/most flights on Delta offer free Wifi with a (free) Skymiles membership.
The Direct to Cell gives tiny bandwidth, kilobytes per second. Not enough for normal Internet. Should be enough to text or call somebody.
This is in the process of being installed by some airlines. https://newsroom.hawaiianairlines.com/releases/hawaiian-airl...
And conversely, as Garmin I'd be more concerned about Apple than about Starlink/T-Mobile.
I remember reading somewhere that literally most of the satellites orbiting earth are Starlink satellites. As in, more than half of all satellites are Starlink.
Obviously that statistic does not mean they have a successful business, that there's enough of a market, etc etc.
But one can imagine the types of services you can supply in just a few years to customers when you have by far the largest satellite constellation in the sky, with global coverage, and the ability to launch dozens of new satellites at low cost.
No, or anything similar with SpaceX and Tesla
But alas, I’m accused of being a Musk dick rider.
The fact that you feel compelled to add this unbidden disclaimer says more than the disclaimer itself.
I agree tho long term at lower end there’s just no way anyone can compete (except in cars of anti-software or anti-feature).
Somewhat? The build quality of a Tesla, even a Model S, resembles that of a Corolla at best. The dash creaks, there's unexplained rattles, the wind howls if things aren't sealed properly, and if you try to address anything with a Service Center you often get told 1) they can't find it, or 2) they found it, but it's "within spec".
Ultimately you have your choice tho.
> The Wall Street Journal reports that Starlink's revenue for 2022 was $1.4 billion, up from $222 million in 2021. It is not known how much profit or loss the division made, but SpaceX President and COO Gwynne Shotwell said in February that Starlink is expected to turn a profit this year.
https://www.datacenterdynamics.com/en/news/spacexs-starlink-...
SpaceX's reusable rockets give them kind of an insurmountable launch cost advantage for now, and also for the foreseeable future assuming Starship achieves second stage reusability.
We'll see, so far I think Starlink is SpaceX's way to keep investor money flowing, valuations high and the point of general profitability (pinky promise) in the future without raising any eye brows.
Dunno if there’s enough bandwidth actually available to do that (currently or theoretically).
Though iMessage is not graceful with queuing messages when you’re offline. WhatsApp does much better.
There are about 5,000 Starlink satellites and about 8,000 satellites total. For the past few years, the number of satellites has been increasing by 30% every year. Starlink can launch 50 satellites in each Falcon 9, which can fly every week. Eventually Starlink will have about 42,000 satellites in orbit. Other mega satellite networks are being planned which could raise the total to over 400,000 satellites.
Hughesnet, Viasat and others offer internet services via satellite from geostationary orbits, and may not offer global coverage; similarish costs, lower data caps (as I understand it), and much higher latency. Mostly targeted for fixed location broadband connectivity, where there's no terrestrial option (because almost all terrestrial options are better in all dimensions)
[1] https://www.cnbc.com/2023/03/01/qualcomm-ceo-says-planning-f...
Novel problems require novel solutions.
My old 1940s had that, and wifi basically didn't work without the doors left open. I do miss its soundproofing, though.