TECHNOLOGY- Radio trasmission 04/04/16

 1) Trasmitter: some examples are TV sound, telecomnunications, vocal cords (vibrate)
 2) Modulation
 3) Antennas
 4) Transported from one antenna to another
 5) Demodulation: to interpret waves to be understood by the receiver
 6) Receptor

- AM: Amplitude Modulation = Transmit information- KHZ
- FM: Frecuency Modulation= Transmit information- MHZ- This one has more capacity to store information.

Types of antennas

- Elevated: it has interference when it rains, when it snows, but they are much better trasmitting information.
- Underground: it has interference with the walls or dense materials.

Line of sight

Finding the point where the signal can be received or trasmitted without any attenuation.

Types of waves

- Electric: requires electricity
- Electromagnetic: infrared signals.

Polarity

One goes horizontal, and the other one should go vertical.