If they use different bands how will it work, I want to control UK X10 components.
that will not work
Why is it illegal?
the electromagnetic spectrum is very large. some parts have been set globally, while others are set by the countries themselves. The part of the spectrum that was set for stuff like the Pronto do not match in the US and UK. So the US Pronto works in a frequency that is used for something else in the UK. RF is regulated since one RF device can interfere with an other.
