Just a heads up, the RX units tend to run a non-spec signal. I have an older plasma tv that doesnt seem to care about the composite, but some of the newer tv's I connect to seem to have a problem.
Again, I would like to advise everyone that the 5.8GHz Rx/Tx kits are NOT FCC certified.
For the sake of information:
I have a 25mW and 650mW units. I find the 650mW punches through a lot of scenery, but because it is analog it bounces and reflects everywhere. 5.8GHz is more likely to reflect off a surface than to penetrate. If you have the option, use a lower wattage first.