posted on Apr, 14 2009 @ 06:22 AM
There is, But you will never get access to it.
I am a radar operator for the R.A.N. and have been doing it for over 18 years. I have tracked everything air wise from a Cessna to a SR71 blackbird,
also add nighthawk, B2 and the shuttle (re-entry) to the list.
Now to tracking out of orbit.... This would depend on the type of Radar in use at the time, If it is a standard air search, then the max tracking
height is about 80000ft and 60nm, pulse dopler (SPY1D) is higher, but at a shorter range, and CWI (Continuous Wave Illuminating) is a point beam high
powered fire control Radar. There are others, but these cover about 90% for air search.
If you where to place one of these types in to space to track outbound objects, you run the risk of illuminating cities, and high powered air search
radars just love to play havoc with anything electronic that happens to be in their path.
If you base it on the planet, you run the risk of not being able to track at that height, basically, the higher you track, the more power and tighter
beam you require.
As to build one - not a chance. Would have to be in a designated military frequency, with a power output exceeding 250kw, and I think you will find
that the max you can transmit at is 25w