Throat singing sound without droning noise

It has been a while but work, school, and a full house keeps me from being able to advance too quickly.
However, I have started to be able to produce a very clear Sygyt. It is hard to control the tone it makes but just being able to hear it is making me happy.

I still need to figure out how the people in my throat singing cd's can make this sound almost completely without the droning noise that comes with it. *other than a lot of practice :P *