This is the highest level of licence that you can obtain.
To gain an Advanced licence it is necessary to pass the Advanced Radio Communications Examination. This examination is more advanced than the Intermediate, it again covers radio theory and licence conditions but because holding a full licence enables you to use 400 Watts power output to your transmitter such subjects as Electro Magnetic Compatability (EMC), antenna design and safety issues are covered in some depth. The licence allows access to all the amateur allocations with full power.
When studying for the Advanced Radio Communications Examination there is currently no requirement to take a formal training course, this is because the examination is currently theory based, with no practical training element in the syllabus. It is possible to study at home on your own if you so wish. However, many local amateur radio clubs and societies and technical colleges run courses specifically for the Advanced Radio Communications Examination. Alternatively there are some correspondence and Internet courses available.