Unguided Transmission Media
Unguided Transmission Media: In any communication network, transmission media is important as it serves as a physical path between the sender and receiver. In a computer network, the transmission media could be divided broadly into two categories, they are Guided Transmission Media (GTM) and Unguided Transmission Media (UTM). To know more about the Unguided Transmission Media keep reading this article till the end you will get to know more about this.
In the case of GTM, the communication signals, which contain information, travel through the physical media to reach its destination. On the other hand, in the case of UTM or wireless transmission media (WTM), the signals get broadcasted in all directions without any guiding physical medium, i.e. there is no physical link between the communicating devices.
Such wireless transmission can be done in air or even in a vacuum. They are not limited by the physical media hence they could be broadcasted over longer distances. The examples of UTM are cellular radio, a communications satellite, microwaves, etc.
There are four types of Unguided Transmission Media (UTM), they are:
Radio waves
The radio waves are the most commonly used wireless transmission media. They could even penetrate walls and other structures; hence they could be received easily at a lot of places. They can have frequencies as low as 3 Hertz to as high as 300 Giga-Hertz.
Read more... Unguided Transmission Media
In the case of GTM, the communication signals, which contain information, travel through the physical media to reach its destination. On the other hand, in the case of UTM or wireless transmission media (WTM), the signals get broadcasted in all directions without any guiding physical medium, i.e. there is no physical link between the communicating devices.
Such wireless transmission can be done in air or even in a vacuum. They are not limited by the physical media hence they could be broadcasted over longer distances. The examples of UTM are cellular radio, a communications satellite, microwaves, etc.
There are four types of Unguided Transmission Media (UTM), they are:
- Microwave
- Radio waves
- Infrared waves
- Light
Radio waves
The radio waves are the most commonly used wireless transmission media. They could even penetrate walls and other structures; hence they could be received easily at a lot of places. They can have frequencies as low as 3 Hertz to as high as 300 Giga-Hertz.
Read more... Unguided Transmission Media
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