I use a directional antenna.. mine is the "version 2"
verision one: Google; RV WI-FI Booster
Look for a PDF document you print out on heavy card stock, then paste Aluminum foil on one piece and drop it over the antenna on a wi-fi adapter with an antenna that sticks up.. Total cost under 10 cents.
If you want better gain.. go to www.amateurlogic.tv and downoad and watch Episode 3.
DO NOT mess with the antenna like George does (It's not needed) just drill the hole in the can as he does, Put a grommet in the hole and stick the antenna up inside the can, Secure them to a base (Scrap wood) and point and shoot.
There are many higher gain designs too.. Some folks have managed several miles using standard WI-Fi devices and very high gain antennas. (George and company cover some of those in later episodes I might add).
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times