Basica Flashcards
What are the bars on a cell phone represent?
They represent the strength of the signals from the tower measured in dB
What is the range of dB
it is from -113dB (low end or no signal) to -50dB (standing next to cell tower)
What is signal propagation?
The ability of a wireless signal to penetrate. You may lose signal in winter where there are leaves
What is spectrum?
Spectrum is a range of electromagnetic radio frequencies used to transmit sound, video and data across the country. It is used for internet, tv broadcasting and transmitting of sound between phones
RF energy is called ——–
Radio waves
What are the components that make up a cell site?
Tower Receiver Base unit Antenna Transmitters
A highway can be an analogy for ——-
spectrum
The surface of the road is analogous to —–in telecommunication
technology (2G, 3G, 4G)