Hams solved all the issues I saw mentioned in the article 100 years ago.
In the USA, it will be easy to break laws with this device. However, since the 1980s there has not been field enforcement by uncle Charlie (the FCC). Licensed users must complain a lot to get a response.\
For example, several times in CA police radio repeaters have been cross patched into HAM radio bands. No prosecution.
Now, all that being said, jamming is the worst sin a radio operator can commit. Please be careful if you start transmitting. Not out of fear, but out of being a good operator.
In the USA, it will be easy to break laws with this device. However, since the 1980s there has not been field enforcement by uncle Charlie (the FCC). Licensed users must complain a lot to get a response.\
For example, several times in CA police radio repeaters have been cross patched into HAM radio bands. No prosecution.
Now, all that being said, jamming is the worst sin a radio operator can commit. Please be careful if you start transmitting. Not out of fear, but out of being a good operator.