Does it matter? The UK legal interference limit is 50 NANOwatts (prior to the Wireless Telegraphy (Exemption) (Amendment) Regulations 2006 ALL unlicensed FM tra

Does it matter? The UK legal interference limit is 50 NANOwatts (prior to the Wireless Telegraphy (Exemption) (Amendment) Regulations 2006 ALL unlicensed FM transmitters were strictly illegal). This is almost certainly capable of exceeding that, perhaps even with just a bent wire antenna (and almost certainly with a tuned antenna). There are good reasons why those limits exist, and infringement can carry penalties up to a £5000 fine.