Whoever, without prior authorization, broadcasts or transmits on, interferes with, blocks, or cross-patches another frequency onto a law enforcement, firefighting, emergency medical services, emergency radio frequency or channel, any assigned or alternate emergency frequency or channel, or an official cellular telephone communication of a law enforcement agency, a fire department, or emergency medical services provider, knowing, or having reason to know that the act creates a risk of obstructing, preventing, or misdirecting official law enforcement, firefighting, or emergency medical services communications, is guilty of a felony and may be sentenced to imprisonment for not more than three years or to payment of a fine of not more than $10,000, or both.