Ubuntu is a free operating system based on Debian GNU/Linux. Usefull to all ham radio operator for a Microsoft Windows replacement. Free means you are free to download, distribute, adding new codes, do whatever you want to do under GPL.
Ubuntu can help you to do your daily task
* decoding morse, psk31, mfsk, olivia,
* logging
* frequency analysis
* satellite tracking
* designing antennas
* watching videos
* listen to mp3s,
* browsing the internet
* and many more
p/s: this is beta version. To all hams, if you want a complete distro please try shackbox ( suitable for emergency case )