If they didn't say directional antenna I think.
There is also a gizmo that connects through your power line. The catch is you can ONLY have one breaker box. If your garage has it's own breaker box then it will not work. Homeplugs.
You can exceed the cat5 limit but quality falls off. You could run 10mb at 600feet.
Be nice to have fiber line out there. Still kind of expensive.
They also make ethernet to serial or short haul modems that might be fast enough.
Playing to the angels
Les Paul (1915-2009)