This is a bit long and rambling, I hope what I am getting at comes across..
A couple of years ago wehad Hurricane Sandy where I live and the power and Internet in most homes went out for over a week. There also was almost no cell service where I live.. after the batteries died.
When this happened, libraries saved so many peoples asses..
The local free public libraries (which around here are really quite good, and function as sort of community centers..) had power and Internet service restored far earlier than the neighborhoods and became a lifesaver for people like us who had a need for net connectivity that went far beyond the usual.. In many cases peoples employers were depending on them being able to work online..
Let me introduce this with a bit of whining abut the over optimistic lies told by the agents for various network providers..
Thy just want tosign you up for more useless junk, and rarely tell the truth.. about what your getting when you make any change of any kind they almost always use that as an opportunity to screw you. This has made me an anti-cell phone person. Almost.
My wife has a cell phone and we are both very frugal. She's been told by her cell carrier that soon it will no longer work and she has to get a newer one. We are in the US.
Where and how can we find out what bands work where and will in the future?
We want to make good hardware decisions.. This has been very hard.
We want to ensure (somehow!) that any hardware purchases we make will work for their intended uses here, for a while..
We need the provision, in a non-biased manner, of the technical issues in play that will effect the provision of both wireless and wired services.. And info about standards involved, and what hardware supports them.
I prefer sometimes to use older, more reliable technology. My area has * lots * of cell phone cells, now (hundreds, lining every major road and highway and populating utility poles in even the quitest neighborhoods.. but I like to have as much choice as possible, and buy tech that's not limited to just one system or carrier.
E-junk problem is out of control..
Our house is littered with the detirus of old cell phone related purchases that no longer work or interoperate with anything. At all. And by and large the parts then become useless.. they cant be repurposed (maybe the displays can, like with old Nokia GSM phones, but thats it)
Now we have to replace a bunch of stuff again because of this phasing out of the old cell phone system. Frankly I'm sick of all this and also sick of carriers promising us things will interoperate for a long time into the future and then raising rates or disabling functionality. This area is well served it seems by 3g and 4g, but the 3g is going away we're now told.. Some of the carrier execs have come out against 5g, they say they dont need it. They only recently finished rolling out 4G.
I am probably a potential customer of mobile services, but even I am penny pinching these days and rankly, am not even the slightet bit interested in wtching videos or whatever on a cell phone. Hell, right now I dont even use a cell phone, an dI refuse to get another one as long as they remain what they are today. The system and functionality that I want I am perfectly willing to build myself in order to avoid the traps that are set up for the unwary who dont put the greatest care into buying cell phones, modems and related services.
I still am bitter about the dismantling of my old TDMA flip phone which it seemed then, worked almost everywhere,
even in the middle of the deserts of the Southwest,. Far away, like 50 miles from any town or major highway. It was truly amazing.. Alas, it no longer works anywhere.
Up until a few years ago I had a GSm phone which I bought for its rugged reputation and advertised internal GPS. Alas, the GPS required a data plan to work, which cost a fair amount extra.. Thats a good example of false advertising. I researched the issue and there is no such thing as a GPS chip that does not support downloading its ephemeris itself. In other words, the internal GPS in my phone should have worked everywhere it had power, and the manufacturer and vendor was using the crap excuse that it only supported AGPS to extort people out of extra money for a data plan when in fact the GPS chip alwaysd downloaded the ephemeris and that data was always available in the pohone because the law requires it. (So that a telephone can always be tracked by its GPS data when making calls..) That is the real reason
Otherwise when its powered up its a few minutes before the GPS works unless its downloaded it within the previous few days and has it stored somewhere. (This is called warm start and takes a maximum of around 15 minutes. Ephemeris data is always available via the Internet from NASA. - as well as various chip and hardware manufacturers web sites. If you have access to the net.
Whatever hardware I buy I want to know what I'm getting, better than I have in the past. The FCC site is useful, if you have an FCC id to look up..
I like hiking and camping
in the wilderness.. Meaning off the grid.. Where AGPS doesnt work..there not being any cell service..
We both are very into GPS. And Internet especially, we need it.
And need reliable cell phone data service when we are on the road.. especially during emergencies..
RF performance and availability of a jack for an external antenna on RF hardware..is useful.
When we had cell phones that worked far away from the city, it was very nice. (even though that phone didnt support hotspot mode)
We could call and book motels and ask people for the info we needed.. Also we brought our phones with us and could use our phones and our home numbers wherever we were in the country (motels) where we got Internet service.. (we have a wifi router we used on the road, in our motel rooms when we had a net connection our phones had dial tone and our hoe numbers rang.. So it was transparent.
Thats what a good carputer setup offers.. I hope..
Newer phones do allow tethering and mobile hotspot (on the cell carrier they are registered with only) when conditions allow it, its nice to be able to use a phone as a local hotspot. During hurricane-caused power outages which at one time (Sandy) lasted quite a long while, its been a lifesaver to be able to connect up to the net via a cell phone..
I have been thinking about setting up a carputer that can give us the ability to use our own wifi when we go out for coffee.. (as long as we are close enough to our car) I am hoping that this would be cheaper than the usual price of data plans on plain old phones.. Mobile modems data plans might be cheaper (bandwidth/ciost wise than cell phones data plans) and with the right antenna might work as well or even better. even while on the road..
I dont know.
? Where can I find out what hardware to use in a reliable nonbiased manner..?
Here in the US there is a web site, "Howard Forums" that has a lot of cell phone related info.
Like DSLReports its been around for a long time and represents a well established, expert community.. Is that the best site for cell network info? Its so great when you can get straight answers to the kinds of questions that can trap you into bad technology choices..
I know that commercial products are sold that bundle this functionality so non-experts can do it,
but because I like DIY and like to optimize such things I'd rather rig up my own with a small PC, I think.. Then I can swap out the various parts.. I like the idea of having a small web server in our car that can be queried for info on where the car is say, when my wife is shopping..
Also, as I said when we go out it would be really nice to be able to use our laptops wifi anywhere we were within range of our car.
I am also wondering what the best very small low power consuming PC would be to base the carputer on. I have found thin client boxes to be super useful, although they draw a bit more power than Raspberry Pi and lack the PI's super useful hardware compatibility (GPIOs, etc) they support the far more flexible x86-64/amd64 architecture.. And most are substantially faster..
Does anybody else here run a "carputer" ? Are there any carputer open software projects, (appliances)
Ye, itlooks like there is this one which looks perfect for me as I have a pi 3 I can use..
https://www.nomadicpi.com/and/or
https://github.com/anthony-mills/raspberrypi-carputerI may still prefer to roll my own..
Really, this subject deserves its own thread..