sretiolc....sorry I missed your info about no landlines.
Well, its looking like a Mobile signal then, and best of luck with that !
You may already have a dongle but if you don't, then go onto the Mobile phone websites and see what kind of coverage you will get.
When I am in my 'van, down near Lands End, I can use the Wifi that the site provides but it really isn't any good, soI use a Three Network Dongle. It gives me a reasonable service, but nothing like as good as home, of course. Different Mobile networks have different coverage, so go to them all, and put the postcode of the site into their search engines and see what network would be the best.
Mobile connection can also be rather pricey, if you need a lot of access, so best luck with that !