Depending on how determined you are, 900mhz is unlicensed and can punch a wireless signal through trees. Equipment can be expensive, but there's surplus stuff o

Depending on how determined you are, 900mhz is unlicensed and can punch a wireless signal through trees. Equipment can be expensive, but there's surplus stuff out there, esp. among hams. http://en.wikipedia.org/wiki/33-centimeter_band http://en.wikipedia.org/wiki/33-centimeter_band