decaturtxcowboy wrote:

>
> How do you explain is greater path loss at 5.8 GHz than 2.4 GHz?

The loss appears to go up because the area (how much RF it 'catches') of
the receive antenna is dropping as frequency-squared. This gives -6
dB/octave path loss slope.

If instead of modeling two-isotropic antennas or two dipoles, one uses
one isotropic antenna (or one dipole) and one *fixed physical size*
antenna, there is no change in path loss as a function of frequency.

If one uses *two* fixed physical size antennas, the path loss
*decreases* with increasing frequency at 6 dB/octave. This is one reason
why microwave and millimeter are so effective for point-point links.

g