Knowledge

In ancient times, human beings transmitted information through post stations, flying pigeons, and beacon fire alarms. This was the first communication. With the rapid development o

According to statistics, 19% of people have dropped their mobile phones into the water, and most of them fell into the toilet! What will you do then? and then? Toss hard? Under the

How to differentiate 4G and 5G 1. First and foremost, the LTE-based 4G network is undergoing a rapid deployment, while the 5G network is currently only in the research report and r

Enter 5G The Next Generation Mobile Networks (NGMN) Alliance defines 5G as follows: 5G is an end-to-end ecosystem that brings a fully mobile and connected device. It enhances value

LTE-Advanced: the bridge between 4G and 5G LTE-Advanced, or LTE-A for short, is an evolution of the original LTE technology toward higher bandwidth, promising three times the speed

4G mobile networks have now entered a stage of rapid popularization, and at the same time, 5G standards have also begun to emerge. These standards may not be unfamiliar to most peo

In terms of cable broadband, let's talk about ADSL first. It can be seen from the ITU-T database that the formulation of the first technical standard version was completed in a

What exactly is electromagnetic radiation? ——Electromagnetic radiation cannot be avoided in modern life, but you don't have to worry, only if the thermal effect is caused by ex

How to use the walkie-talkie: 1. When the walkie-talkie is transmitting, keep the walkie-talkie in a vertical position and keep the microphone 2.5-5cm away from your mouth. When la

In outdoor activities, the role of walkie-talkies is greater than that of mobile phones in some cases. It does not require external base station support and can communicate freely

Collect the radio emitted by the phone itself In the past, dipole patch antennas were used to collect energy from radio waves, but because the efficiency of collecting electricity

Smartphones bring great convenience to people's lives, but their battery life is a fly in the ointment. As soon as you forget to recharge, it will strike. Can it get a steady s