Reddit reviews Tupavco TP513 Yagi WiFi Antenna 2.4GHz 17dBi Angle H:25° V:24 Outdoor Directional Wireless

A hackrf one can do 2.4 GHz and directional antennas are easily found online. You would also need an adaptor like this one

Then you could use a laptop running GQRX or SDR Sharp to show you the signal strength of 2.4 GHz signals in the direction of the antenna. Turn off your phone WiFi and laptop WiFi.

See if you can find any ham radio operators in your area, they often know how to find a transmitting beacon (it’s called a fox hunt).

travel routers! you can mod these little devices to add obscenely big antennas if you like. they also can create a private lan, so your devices can communicate with each other faster and securely. for example, there's this router which could be modded with this antenna with this adapter. they offer lots of functionality that you would want.

router:dd-wrt plus yagi antenna. solar: 400w of panel wired in series MPPT charge controller, 8 deep cycle batteries 4 series pairs in parallel, and a couple inverters a 2kw for the lights/ other big stuff(crock pot, rice cooker, electric grill, small heater for the tent in the winter) and a cheap 500 watter from walmart for everything else and of course a coleman electric cooler as a fridge.
edit: i also have a cheap single burner propane stove hooked to a 5lb tank ... i'm on month 13 since i filled it, and at the very least i make coffee on it twice a day.

Either this or this should work well (If you go with the 1st link, you would need an N to SMA adapter).

At each building, you would need to mount the antennas and have them pointing at eachother, with the antenna cable running inside to some sort of 'WiFi bridge/router).

A router/extender like this would probably work. For the 'WiFi repeating (bridging)' mode, you would just have to figure out which antenna would be dedicated for receiving.

Couple of options:

• To mooch wifi from free hotspots / friends, you can do that with a regular laptop / phone. To boost your range, you'll most likely want a wifi booster of some kind. Traditional wifi boosters would look like: Big wifi antenna -> black box -> smaller wifi antenna inside the van -> your laptop/phone
  
• A cheaper version of a booster is to "make" one. Get a Yagi wifi antenna + a wifi adapter then connect the adapter to your laptop via USB. It's a bit more involved to do this for your phone. Just remember you have to point the antenna to the wifi source to get the best signal
  
• Get a 3G/4G/Mifi box which will connect to a cellular network and output a wifi hotspot you can connect to. If the signal is sparse, you can try getting a 3G Yagi antenna and plugging it into the 3g box though I'm less sure about that and am currently looking into it myself since those boxes typically have two antennas (one for receiving and one for transmitting I believe)
  
• Tether your phone to your laptop and get 3G/4G internet that way

Oh man. I doubt a PowerLine adapter would work.

Option 1. Run a cat5 cable. Find someway of doing it. But I can't tell if there's a good way of doing it perminantly. You could always just do a temp one everytime there's an update.

Option 2. Buy more Google WiFi. Ask to put one in that neighbor's house. While you're at it might as well ask if he wants to ditch his internet and just share a connection. If you've got like 50mbps that's more than enough for 2 houses...

Option 3. Buy two directional antenna.

Tupavco TP513 Yagi WiFi Antenna 2.4GHz 17dBi Angle H:25° V:24 Outdoor Directional Wireless https://www.amazon.com/dp/B008Z4I7WQ/ref=cm_sw_r_cp_api_i_0RkZCbVVPEWRK

And point them at each other. I don't know what to use as a bridge/repeater. All these fucking new routers have 50 antennas and all unremovable! God we've gone backwards.

You might need a directional antenna, to be honest. And if you're looking to capture a Wi-Fi signal from a distance, something like this should do the trick: https://www.amazon.com/Tupavco-TP513-Antenna-2-4GHz-17dBi/dp/B008Z4I7WQ/

100 W WiFi antenna