I'd be surprised if the police or military couldn't dig out a jammer from somewhere if they wanted to - or just turn off the local cell towers for a while. Wouldn't be the first time.
If I were trying to develop a jamming detector or jam-resistant device perhaps I’d order that device. But I wouldn’t turn it on in the middle of a suburb.
There are a myriad of ways to work through signal jamming.Something designed to work in a battlefield can utilize one or several methods.
Most civilian devices aren't designed to do that because it's usually more expensive. There are also nebulous arguments about hindering law enforcement (but also counter-arguments about criminals eg "if you outlaw guns then only outlaws will have guns").
Tell that to the truckers who accidentally cause panic in a metropolitan area when they forget to turn off the jammer they use for fudging hours and miles. Those signals are very weak by the time they get down here, and easy to override. It's just illegal.
Per the FCC, "Federal law prohibits the operation, marketing, or sale of any type of jamming equipment, including devices that interfere with cellular and Personal Communication Services, police radar, Global Positioning Systems, and wireless networking services (Wi-Fi)."
Although, I'm sure an exception would be made for law enforcement on the grounds of national security.
While technically possible to blanket an area with RF jamming signals, I think both sides depend on the signals so much that the nuisance of jamming the signals outweighs the benefits.
Kind of like with GPS signals - our military could (and occasionally does) jam those signals during a conflict, but we rely on it so much that it's more useful to keep it working.
The military has plenty of anti-jamming technology don't they? I'm guessing if they wanted to do this right there would be ways that are a lot more sturdy than something a simple RF jammer can stop.
The US doesnt have a presidential palace, so this must be in a foreign country. There isnt really anything the US can do for localized jamming in a foreign country.
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