Hey everyone, thanks for coming back to Wi Fi fundamentals with location and analytics. This course will help you to muster the air. Wi Fi is puzzling. It's in the air yet you can't see it. It is possessed with the mystery of physics, sine waves, reflections, reflections. In this lecture, we will look at WiFi at its basic form, how it evolved, its physical properties, what makes attenuation and why different radio frequencies are preferred.

By the end of this video series, you will be able to understand waves their behavior and plan your network more effectively. What will you learn? We will take a look at waves What are waves? Why do we use waves to represent Wi Fi energy, we will focus on one type of a wave the sine wave, its properties and why in different frequencies wave tend to function differently. We will also take a look at the different frequency used to send Wi Fi signals, the relationship between access point and waves and we will take a look at RF loss. Why does it happen and how can we avoid it?

When you visit disturbance propagating in space or any other medium, we're all familiar with different types of waves, a stone that is thrown into the water with create wave, not that way. That kind of wave. A wave usually transfers energy from one side of the medium to the other. It can be represented in different forms and shapes. Usually we do it using a sine wave. I know it looks scary, but trust me, it is simple.

We will not get into the geometry of shapes. But remember this signs are just a mathematical function that helps us describe a smooth oscillating wave. And if you want to make things more simple, think about it that way. Sine is to a circle, the same as the line to a rectangle, it makes the circle circular. sine waves have properties that characterize the way they move, react to obstacles, attenuate and deliver data. We will dive into each in the next lecture.

See you then.