[Karlnet] quick antenna question

["wesley allison" <scgn@pipeline.com>]

I have a 2.4 GHz antenna that uses LMR400 cable, standard stuff, but can I use 
something else and what are the advantage and disadvantage. I was looking at 
some old thick net coax cable and I was wondering LMR400 is coax cable in a 
larger scale, so why can't I same a little money on long runs and use a smaller 
coax cable for my antenna's?

Wes