We have a friend who got better reception off of her neighbors’ unsecured WiFi than she did off of the wireless router her provider supplied. I’ve also “borrowed” my neighbors’ unsecured WiFi in a pinch when my provider goes down.
I’m using wifi from somewhere in my building right now to read FR on my android - haven’t gotten up yet to turn on the computer.
We travel and camp. We go sometimes to the parking lot of Comfort Inn to borrow the Wi Fi. After 10:00 in the morning, guests are gone and all ports are open. An antenna as described will allow us to park next door to do the borrowing and not be so obvious.
A permanent installation on top of my sprinter is being designed in the recesses of my subconscious as I type.