User's Manual

Digital Repeater User Manual
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communication can’t be achieved due to no or weak signals though there is a mobile phone.
How to solve the problems?
Best Solution:
Plug & play: Purchase a set of booster solution and install it, and plug on the power and
immediately you would be able to enjoy the full bar and high quality signals!
Question: Will booster increase the RF radiation?
A: No, it will decrease instead.
As it can be searched easily through internet, the tower would “order” the mobile phone to increase its output
power, in order to ensure successful connection when the mobile signal bar is few, there will be stronger mobile
output power level when the mobile signal bar is less and the strongest one can reach 2W (GSM); moreover,
the mobile phone is usually as near as less than 5cm to human body when people are in phone calls. Not only
it influences badly the human bodies, but also run out of the battery power much more quickly; usually the
mobile phone gets hot in such status.
The maximum power level of digital repeater is 0.2W, and it decreases to be maximum 0.006W when reaching
server antenna. And since the server antenna is installed over the ceiling or onto the wall, there is usually more
than 3 meter away from the human body, 3meter away means at least 40dB propagation loss, or 10000 times
less, 0.0000006W, and therefore it is too weak to influence human bodies though it is still a very good signal for
mobile phones.
And when a booster is installed, it improves the mobile signals in the coverage, and the successful phone call
can be connected easily with a much less power level of the mobile phone, thus it will reduce tremendously the
RF radiation.
3 Introduction
Digital repeater full duplex mobile communications repeater is the perfect solution for providing a wireless
improvement in the cellular reception, in the quickest time possible. One repeater covers 2000 to 2500 square
meters.