Welcome to a quick (!) guide to Wireless systems and the law regarding using them. I am going to cover the Licensing side of things here and not go into any kind of comparison between different systems and the way they work as there are many of them out there and I don't use one so couldn't possibly comment on your particular make and model of system! A bit about me first. I worked for many years in the TV Broadcast industry and my speciality was specifying, licensing, tuning and insta