Along the same lines, some high power radio devices in the US would be illegal in Europe because they're in the wrong band. XBee radios are happy at 900MHz in

Along the same lines, some high power radio devices in the US would be illegal in Europe because they're in the wrong band. XBee radios are happy at 900MHz in the US, however this is GSM band in most of Europe and we use 863MHz for sub GHz radio instead. And almost vice versa, US GSM is 850MHz I believe. It's a real pain for electronics work because you can't buy off the shelf things from the big hobbyist stores.