Modulation and kinds of modulation

Hello all.. good morning or afternoon or night whatever you read this post, (lol)

Now i will explain about a basic knowledge of networking that called Modulation. What is modulation and what kind of type modulation, i will describe it as far as i can.

Let we start about a sample analogy.

Think about your lecturer sound, when he/she talk there are something different when you are in front of the class and behind the class. While you are in front, you will hear his/her sound well but while you are in behind of the class, the sound will be smaller and get some trouble than it. The trouble is called  noise.

Now lets think again.. While your lecturer use speaker while talk, his/her sound will heard better from behind the class than before. This is in same case with modulation.

The information that you send without modulation have smaller range than after modulation. But why??

Here is the answer, in modulation the information signal will be transmitted and overlapped with carrier signal. Carrier signal make a better range because it has more high frequency. Higher the frequency will give a larger area that affected.

So we get the conclusion that Modulation is a process that make information signal to overlapped with carrier signal which is have higher frequency.

Base on the information signal type modulation can be differentiated about 2 kinds:
1. Analog Modulationn
2. Digital modulation

The analog modulation, can be differentiated about some kinds:
1. AM (Amplitude Modulation)
2. FM (Frequency Modulation)
3. PM (Phase Modulation)

The digital modulation, can be differentiated about some kinds:
1. ASK (Amplitude Shift Keying)
2. FSK (Frequency Shift Keying)
3. PSK (Phase Shift Keying)

Detail about that kinds of modulation will be available in next post.

Thanks for reading about this post, if you still have some questions just tell me in the comment below.