Share to: /   The Chinese make light Work of Payment: The Invention of Paper Money   / Around 650 AD, the emperor of China began to issue paper value tokens for general use.
Answer: No. Mobile phones do not give off sub-atomic (ionizing)  radiation.    Answer: Yes. Mobile phones emit microwave (millimeter to  centimeter range) electro-mag â¦ netic radiation, mostly at frequencies  from 800 to 1800 MHz (1.8 GHz).This is below infrared.nswer: No. Mobile phones do not give off sub-atomic (ionizing)  radiation.    Answer: Yes. Mobile phones emit microwave (millimeter to  centimeter range) electro-mag â¦ netic radiation, mostly at frequencies  from 800 to 1800 MHz (1.8 GHz). This is below infrared.
The outside signal strength of the carriers you need to support determines how strong of an amplifier you need to provide adequate coverage for the area you need covered. The weaker the outside signal is, the stronger the cell phone signal booster needs to be in order to boost the signal and provide adequate coverage.hile either one of these factors are enough to cause dropped calls and poor reception, the combination of the two all but guarantees problems. Next we'll look at how a cell phone signal booster is designed to deal with both of these factors.