A mates asked for me to find a wireless repeater for his caravan. The site it is on has wireless but he is on the edge of its range. Ideally I'm after an external unit or a unit with an antenna on a cable so that it can be mounted on the roof of the caravan.
Cheap as possible. Does anyone have any recommendations or even know the search terms to use as variations of "external wireless repeater" don't bring anything up.