Simply plugging a radio transmitter into an electrical socket in your home is all that is required to create a wireless fence. From that location, it sends out a straightforward radio signal in the area surrounding both itself and the home. The distance that can be covered by that radius is determined both by the device and by the way that you configure it.
How does a wireless dog fence work?
Canine Journal states that in order for a wireless dog fence to function properly, it requires both a transmitter and a receiver. The dog collar is worn by the animal, and the transmitter is connected to a power source somewhere on the premises.