I searched technorati and found this post about a numbers station reception:

http://lackey177.livejournal.com/12774.html

I assume he's talking about 7.10mhz (he wrote it as 7.1mhz). Anyone else hear this? I am usually headed for sleep at 0800 UTC. I don't have my Enigma 2k documents handy so I'm not sure what this could be.