I was implying iostropic in 3 dimensions....

Now for a paradox.....


If RX==TX as for as antenna gain

And 100W is 100W.... then isotropic had dBi =0 be the laws of
conservation of energy.....


No suppose we have an antenna that captures all of the energy passing
though a 1M square.......

Now make that a 10M square.....


Clearly a 10M "Fishing net" can capture more than a 1M net, but

Then RXgain != TXgain


So what gives where is this wrong?