rclaser,
I think your best bet is to check to see what your country's regulations are concerning air/surface radio frequncies. All countries do not have the same regulations, I've no idea about Greece's. Also no idea about Greece's enforcement policies. The one 'enforcement policy' to really worry about is the 'fly-guy' who's plane you cause to crash. They tend to get very excited and having your legs 'switched' with a radio antenna is no fun at all! - lol
- 'Doc