Is Radio Frequency Jamming Legal?

In a world dominated by mobile phones and wireless broadband services, the incidence and usefulness of radio frequency jamming has only increased. In recent years, the technology has been used to prevent improvised explosive devices from being remotely detonated, it has disrupted the communication of known and suspected criminals, and has even been used to keep students’ attention focused on the class rather than on their iPhone.

But amid all of this, very few people have questioned whether this use of radio signals is even legal at all. So, is radio frequency jamming legal or illegal?

The answer might surprise you: it’s both.

The Case for Illegality

It might come as a surprise to many Americans that the use of radio jamming is actually illegal under the Communications Act of 1934. That act, as written, specifically prohibits any interference of American radio wave communications by any group — be it civilian, military, or law enforcement.

Of course, this law was passed during a time in American history that was heavily dependent on radio waves for far different purposes, an the loss of radio communication had dramatically different implications and complications than it does today. In the early 20th century, radio was essential to national defense — so essential that losing radio communications put large groups of people at risk.

In the modern era, however, America is now at a crossroads: radio signals are still essential to national defense. Mobile broadband jammers, for example, would send Americans and the military into a panic, as these services are now considered essential. However, there is value in preventing terrorist groups or known violent criminals from communicating, and a radio jammer is the best way to prevent their calls from connecting.

Perhaps this is why, since it was passed, not a single case of frequency jamming has been prosecuted by the Federal Communications Commission under the Communications Act of 1934. There is a certain amount of discretion and legal “breathing room” when using these service.

The Case for Legality

A radio jammer can now be used to keep American troops safe in the War on Terror, as it prevents IED bombs from exploding and killing scores of troops in important convoys. And broadband jammers can keep terrorist cells and domestic terror suspects from procuring the information they need in order to harm American citizens and further their violent objectives.

Under the 2002 Homeland Security Act, the government actually has the authority to “override” some personal liberties if the well-being of American citizens is considered at risk. That means they can essentially ignore the 1934 law in favor of a modern, terrorist-based reality.

Essentially, the jamming of RF signals is illegal in theory, but legal in practice. No one has ever been prosecuted or faced a penalty for committing this act, and it is used in increasingly banal settings — like classrooms and cars — as well as in matters of national defense.