Answers (2)
The maximum distance between a cellphone and a cell tower depends on many different factors. The connecting technology, landscape features, the power of the transmitter in the tower, the size of the cellphone network cell and the design capacity of the network all play a role. Sometimes the celltower transmitter is set to low power on purpose so that it doesn't interfere with neighboring cells. Often hills, trees or buildings interfere with transmission. Any of these factors might prevent you from getting a signal, even if a cell tower is quite close.