This is not really accurate though. Both a Raspberry Pi and a Flipper Zero can easily and readily be turned into a signal jammer or spammer with off the shelf parts and nearly no technical skill. Modern smartphones are generally both more locked down and also don't come with an external antenna option.
> Modern smartphones are generally both more locked down and also don't come with an external antenna option.
There are USB On-the-Go compatible SDRs [1] that you can hook up to an Android phone that cost like $50 (don't know if there are any that would work with iOS though).
Even if this could jam signals, which a sibling comment attests that it cannot, I wouldn't be surprised if it gets flagged by security if you try to bring it in and hook it up to your phone
Readily turned into a signal jammer? Do you know this or are you just guessing? Raspis are SBCs not tricorders from star trek.
In terms of actual knowledge, wifi chips, like the one on your laptop or a raspi do not have software settings for that. They are predominately defined by hardware and by opaque binary blobs the kernel developers have their hands full reverse engineering compatible interfaces for. In addition, electrical interference far beyond what a tiny communications radio is capable of can come from dangerous items such as microwaves, electric motors and nine volt batteries plus spools of wire.
Literally the first result on Google gives a simple to use jammer that works out of the box. Hook up an external antenna and you're good to go. Plenty of more sophisticated options if you dig a bit more.
Like the article asks, why ban these two specific brand name devices? If you're worried about signal jammers, why not communicate that you're banning, oh, I don't know, "signal jammers"?
Any mobile computer can be easily and readily turned into a signal jammer/spammer with an off-the-shelf SDR. There is nothing particularly special about the Raspberry Pi. I didn't see laptops on the list.
