Perhaps a set of low power local GPS transmitters that point the student to the principal’s office where they
can find Pekachu! - LOL
using a jammer can get you in legal trouble, check your local regulation about it first
Jammers and fake GPS transmitters, in fact any transmitters outside ISM/free bands operated without licenses fill get you in legal trouble in most of the world.
Jammers are illegal in general but are legal within your own local space. So if you had a jammer that didnt extend beyond your own land than that wouldnt be an issue. Its very important that you use a jammer for specific frequencies. By jamming mobile internet you can than force them to use your own wifi and perform filtering on it.
When it comes to jamming as long as you dont jam specific frequencies/radios it will be fine.
I wonder in what countries the legislation is like that…
Here jamming is very illegal (hefty fine) no matter if your local space or not.
And think about it, you cannot jam within your local space only except when it is a Faraday cage. Where the whole problem would not exist anyway.
Even in countries that have jamming illegal i have seen it used in some places such as government buildings, within entertainment buildings like concerts where you lose mobile phone access when the play starts.
So im pretty sure you could get permission if you are an educational institute wanting to only block 3G and up while still allowing all the mobile frequencies that dont use data to enforce content filtering (you could always say you want to block porn at school properly).
Good luck blocking only the data on 4G. Everything is IP on this system - even the voice calls.
You dont only block data on 4G, you block the entire 3G-4G-beyond frequencies.
Exactly my point. I wonder how much time until the first “4G” only mobile network.
I can only speak definitively about here in the United States, but generally for other locations. Here in the USA, NO ONE can legally jam any licensed radio frequency and even most unlicensed radio frequencies. A hotel chain even got a huge fine for faking WiFi signals that prevented people from using anything except the hotel’s provided WiFi (for which they charged a daily use fee). No one gets an exception - although several states tried it in prisons and were told that they can’t do it. There are other solutions to prisoners with smuggled in phones.
I realize that the rules are different in other countries, but as a general rule of thumb, most countries do not allow jamming of all or most radio spectrum. Check with your laws.
BTW, don’t believe the website of a jammer manufacturer. Most of them will happily lie to you so they can sell more illegal jammers.