Radio and Communication, What is the principle of radio communication?

What's wrong with radio and communications, what's wrong.

1. Wireless communication is a communication method that uses the characteristics of radio wave signals to propagate in free space for information exchange. Wireless communication on the move is also commonly known as mobile communication, and people refer to the two together as wireless mobile communication. To put it simply, wireless communication is a communication method that uses only electromagnetic waves and does not pass through cables.

The electrical signal travels from the transmitter to the antenna, which then emits the signal as a series of electromagnetic waves into the air in the middle of the repetition, and the signal travels through the air until it reaches the target location. At the target location, another antenna receives the signal Bishan, and a receiver converts it back into current.

2. Radio communication is a communication mode that modulates the sound, text, data, image and other electrical signals that need to be transmitted to each other through space and the ground on radio waves, and uses radio electromagnetic waves to transmit information in space.

Radio communications is a communication method that modulates the sound, text, data, images, and other electrical signals that need to be transmitted on radio waves to each other through space and the ground, and uses wireless electromagnetic waves to transmit information in space.

Hello dear, the biggest difference between wireless communication and wired communication lies in the way of signal transmission. Wired communication is the transmission of signals through physical mediums such as cables or fiber optic cables, while wireless communication transmits signals through radio waves. This also leads to differences between the two in terms of transmission distance, transmission blast mode rate, anti-interference ability, etc.

First of all, the transmission distance of wireless communication is shorter than that of wired communication. Since radio waves are affected by obstacles, weather, and other factors during transmission, the distance of signal transmission will be limited. This is not the case with wired communication, where signals can travel long distances in cables or fiber optic cables.

Secondly, the transmission rate of wireless communication is slower than that of wired communication. The transmission rate of wireless communications is limited due to the relatively slow transmission speed of radio waves and the interference they occur during transmission. Wired communication, on the other hand, does not have this problem, and the signal can be transmitted in a cable or fiber optic cable at a very high rate.

Finally, the anti-interference ability of wireless communication is worse than that of wired communication. Since radio waves are susceptible to interference, such as other wireless devices, electromagnetic radiation, etc., the anti-interference ability of wireless communication is relatively poor. Wired communication, on the other hand, does not have this problem, and the signal can be transmitted in a cable or fiber optic cable without being affected by external interference.

In short, wireless communication and wired communication have their own advantages and disadvantages, and the appropriate communication method should be selected according to the specific situation.