I decided to get HAM license and started studying for the exam. The most challenging part is the Morse code test. Hopefully there are some sites and software to make it easier:
I downloaded all the leassons from this guy (K6RAU) :
https://web.archive.org/web/20161224160705/http://pdarrl.org/K6RAU
Unfortunatelly his page is not online anymore, but the Archive saved us!
For Linux there are two known tools:
Text mode: aldo
Graphic mode: xcwcp
For Android there is Morse Mania from morse.countrymania.net
Alan C. Assis 