I'd say it's fine to modify it to be able to do that, as long as you don't actually turn it on and make it disrupt other people. For example, a car is very capable of crashing into people, but even though it can do that we expect people not to use cars in that way. Even though cars can be dangerous if used irresponsibility, there are legitimate reasons to have cars. Similarly, there are legitimate reasons to modify radios, and we should just expect people to use them responsibly the same way we expect car owners to use their cars responsibly.