Cell Phone Towers.pptx

Cell Phone Towers :)

1. Cell Phone Towers Umer Draz 70059551

2. What is a Cell Tower? A cell tower or also known as a cell site is a cellular telephone site where electric communications equipment and antennae are mounted . The purpose of a cell phone tower is to facilitate the signal reception of cellular phones and other wireless communication devices like telephone, television, and radio in a cellular network.

3. How does it work? Whenever you use your mobile phone to make a call, it emits electromagnetic radio waves also known as radio frequency or RF energy. Once the radio waves are emitted, the antenna from the nearest cell phone tower will receive them. The antennas of a cell tower can both transmit and receive signals from mobile phones. After receiving the radio waves from a mobile phone, it will then transmit the signals to a switching center which is a telephone exchange for mobile phones. This allows the call to be connected to either another mobile phone or to a telephone network.

4. Types of Cell Towers Cell towers could be lattice or self-support towers, guyed towers, monopole towers, and concealed towers . Concealed towers can be designed to resemble trees, cacti, water towers, signs, light standards, and other types of structures.

5. Range of Cell Towers The working range of a cell tower depends upon following factors: Height of antenna The frequency of signal The transmitter's power The required uplink/downlink data rate of the subscriber's device The direction of the antenna Reflection and absorption of radio energy by buildings or vegetation It may also be affected by weather conditions

6. Effects on humans? Based on the available scientific evidence, there are no   health risks  from exposure to the low levels of radiofrequency EMF which people are exposed to from  cell phones ,  cell phone towers , antennas and 5G devices .