According to the 'Hyperatlantica' website a new world record has been set for a terrestrial contact on 10GHz.
On the 10th July, the team made a 10GHz QSO between the Cape Verde islands and Southern Portugal.
Take a look around the website - it's not extensive, so if you understand a little French, you'll be fine. If not, then Google Translate (http://translate.google.com) is your friend.
Well done Team Hyperatlantica!