Radio Frequency Emissions

Night at the end of the summer, I watched it with Jimmy Fallon until late at night. When watching late at night, TV shopping advertisements occupy the majority of advertisements. Until today, Safe Cell Tab remembers being advertised as a sticker-like device that can reduce the risk of cancer when using a mobile phone. According to Wikipedia, 60% of the world's population owns mobile phones. There are about 7 billion people in the world. This means that 4 billion people will touch the mobile phone on a particular day.

Randomized trials evaluating the causal relationship between radiofrequency radiation and neoplastic disease have never been done (and never done). In a randomized trial, half of randomly selected subjects need to avoid using the phone, and this will not happen. For example, the latency period of radiation-induced malignancies is on average 20 years, but epidemiological studies of a large number of people exposed to ionizing radiation (only needing thousands of patients to reach statistical significance) We begin to show an increase in annual baseline. So far to say the least, so far there should be at least some excessive glioma caused by cellular (or WiFi) electromagnetic radiation.

Electromagnetic radiation having a frequency between about 10 kHz and 100 GHz is called radio frequency. The radio frequency is divided into groups having similar characteristics called "bands" such as "S band", "X band". The band is further divided into a narrow range of frequencies called "channels", some of which are reserved for use in deep space communications. Many deep space vehicles use S band and X band frequencies around 2 to 10 GHz. These frequencies are called microwaves because the wavelength is very short, just a few centimeters. A deep space communication system for the higher frequency Ka band has been developed.

Two-way radio has two main frequency formats. They are super high frequency (UHF) radio and super high frequency (VHF) radio. The two bands themselves are not better than others. Each has advantages and disadvantages. Either format is an effective way to communicate with others. Factors within the line of sight are likely to occur in UHF and VHF radio, but VHF is easy to occur. Waves pass through trees and rugged landscapes, but not as good as UHF frequencies. However, when the VHF wave and the UHF wave are transmitted over an obstacle-free area, the VHF wave propagates almost twice. This makes VHF easy to broadcast over long periods of time.