I have cable internet at my house. My barn is about 300 feet away and I would like to get a wi-fi signal there. I want to not spend more than about $300 total (less would be better). I want to install a wi-fi camera like dropcam so I can watch my pregnant mares during the day from work to see if they are getting ready to foal so I can get home to attend to them. There are a few trees in a row between the house and the barn, but only about 1 tree thick in any given spot. I didn't know if this is even possible, there are RR tracks between the buildings, so no connection with pipes or power and no way to make a connection like that. I wanted to find out what I need to do this and if it is even possible.