Here's a test we ran: Objective was to set up an internet link between Dave's house and neighbor Todd's house on a mountain about 1/2 Mile away.
Here's a diagram of the 2.4Ghz link test using a 16db gain Yagi
Shot of the experimental radio link.
This antenna is a Cushcraft 2.4Ghz Yagi.
The results of the test were inconclusive. Four trials were run Signals were low
Shot of latest link test. this one picks up the Access Point router and retransmits using a third router
Shot of the parabolic pointed at jordan Peak for the second round of tests. The router RF power is set to 200mW
Here's the Yagi picking up the Access Point from the house down the hill.