Red dot will be computer. black dots cameras Wife think she wants one more camera but not sure yet.As I used Goggle to get this pic, Most of the trees are gone and turned into yard. Have omni directional antenna on silver roof building and underground(in conduit) cable to red dot for wifi. Without we get no phone reception on our phones.Permanent I phone 6 for hot spot at red dot, USB connection for power and data to computer. Signal from hot spot will not reach but 30' Standard house walls All cameras are outside. Need day/night cameras. Would be nice if we could connect to DDR computer with our phones. The 450' camera is end of dock not shown and assume line on it Can not run wires to cameras. but will have a dedicated computer to store data on. Have power at all camera locations ( we over killed on electrical outlets). Thanks for all the help