Understanding | How Safe is WiFi? A Review of WiFi Issues

Understanding | How Safe is WiFi? A Review of WiFi Issues

A piece of information regarding the dangers of WiFi   About WiFi radiation   WiFi has now become an integral part of our lives, and its radiation issues have been frequently questioned. There was once a news report about a pregnant woman’s family going door-to-door asking neighbors to turn off their WiFi to avoid affecting the fetus, … Read more

Does Wi-Fi from Routers Emit Radiation?

Does Wi-Fi from Routers Emit Radiation?

1. National Safety Standards for Wi-Fi Radiation.1) According to the safety limits set by the International Commission on Non-Ionizing Radiation Protection, the safe radiation range for the human body is “10 watts/square meter”.2) The electromagnetic wave frequency range of Wi-Fi signals is generally from 2.4 GHz to 5 GHz, which is quite close to the … Read more

The Layout of Crystal Oscillators on PCBs: A Technical Challenge, Avoiding PCB Edges is Crucial

The Layout of Crystal Oscillators on PCBs: A Technical Challenge, Avoiding PCB Edges is Crucial

1. Problem Description A certain dashcam requires an external adapter for testing. During power-on testing, it was found to exceed standards, specifically at frequencies of 84MHz, 144MHz, and 168MHz. The cause of the excessive radiation needs to be analyzed, and corresponding countermeasures should be provided. The radiation test data is as follows:2. Analysis of Radiation … Read more

Transforming micro:bit into an Electromagnetic Radiation Tester

Transforming micro:bit into an Electromagnetic Radiation Tester

I have seen cases online where Arduino is used to create a simple electromagnetic radiation tester, typically using several LEDs to display the intensity of electromagnetic radiation. The micro:bit comes with a built-in LED matrix, so I thought it would be more intuitive to migrate this small experiment and use the matrix to display radiation … Read more

Does Wi-Fi Emit Radiation? Is It Harmful to Health If Wi-Fi Is Not Turned Off While Sleeping?

Does Wi-Fi Emit Radiation? Is It Harmful to Health If Wi-Fi Is Not Turned Off While Sleeping?

Health Chengdu Official Account The public account that Chengdu people are paying attention to Follow What is radiation? Does Wi-Fi emit radiation? Radiation refers to energy that spreads from its source into space in the form of waves or particles. Radiation that exists in wave form is a type of electromagnetic wave, which can be … Read more

Does Wi-Fi Emit Radiation? Is It Harmful to Health If Wi-Fi Is Left On While Sleeping?

Does Wi-Fi Emit Radiation? Is It Harmful to Health If Wi-Fi Is Left On While Sleeping?

What is Radiation? Does Wi-Fi Emit Radiation? Radiation refers to the energy that spreads from its source into space in the form of waves or particles. Radiation that exists in wave form is a type of electromagnetic wave, which can be classified into the following categories based on frequency, from low to high: static electricity, … Read more