Worth a try, but I wonder if that is jsut a legacy connection from the old 40Mhz boards?
Cant see how a 2.4ghz signal could be picke dup along a random length of simple wire without some crazy attenuation occuring.
But hey, I know you love your science (!) so worth a try.
I reckon (without knowing for sure, so its just my thoughts) that the length of your 2.4Ghz aerial (the co-axial one) is critical. I cant see how any other length could work correctly. Your RX is jsut going to be tuned to a certain impedence and thats linked to the length.
Like I said though, thats based on nothing more than some reading and thinking
