Whenever a cell phone is used, it emits an electromagnetic radio wave, called a radio frequency, that is received by the nearest cell tower’s antenna. Once the cell tower receives this signal, it will transmit the signals to a switching center. A microchip in the phone modulates (or varies) a radio wave using the electrical signal. The radio wave travels through the air to a nearby cell tower; the tower sends your voice to the person you are calling and the process is reversed so that the person on the other end can hear your voice.
The strength and quality of your mobile device’s signal can be affected by many things such as; Wireless interference from items such as microwaves and power lines, Obstructions such as buildings, hills, trees, Weather conditions, and high demand and usage on the operator’s mast. Mobile phones communicate by transmitting radio waves through a network of fixed antennas called base stations.
Radiofrequency waves are electromagnetic fields, and unlike ionizing radiation such as X-rays or gamma rays, can neither break chemical bonds nor cause ionization in the human body. Hills, mountains, bluffs, heavy vegetation, and even weather can kill your cell signal. Glass/windows. When cell phone users lose signal or drop a call inside of a building, it can seem instinctive to move near a window.
