LAD com FM?

Alguém me pode explicar o que é que isto significa (ou o que é que, tecnicamente, isto quer dizer - que eu não percebi)?

«Gadgets which transmit MP3 players' output so they can be heard on FM radios may become legal in the UK. Communications regulator Ofcom is holding a public consultation over the issue until September. Using iTrips and other "low-power FM transmitters" is banned in Europe as their low-power transmissions can, in theory, interfere with legal stations. The devices and other similar MP3 player accessories are popular abroad and widely available online. The Wireless Telegraphy Act of 1949 forbids the use of radio equipment without a licence or an exemption. But the gadgets are now expected to become legal to use - without a licence - by 2007»