need far-ranging router compatible with eMac

[kofixg]

Hi - I currently have an eMac and use a Linksys N router in my current home. I may be moving to a very rural area for the summer and want to be able to get internet there. The main computer there uses Satellite to connect to the internet. The cabin i'll be in is more than 180 yards from the main house, with some trees. We checked with the satellite company and they said you can buy a router that is far-ranging (such as what scientists and firefighters use). I did a search for "far-ranging routers" and came up with ZILCH. Anyone have any ideas?