When you are driving in the suburbs or mountainous areas, there are often weak mobile phone signals to make calls not easy. At this time, you may need to get out of the car to answer the call on your mobile phone. The main reason for this situation is that mobile communication operators have fewer base stations installed in suburban and mountainous areas than in cities for profit’s sake. Signals in these areas are relatively weak, and car bodies usually attenuate 5-10dB in terms of signal strength. So the signal in the moving car will be worse.

     Amplitec’s A23 series four band cellphone signal boosters for vehicles are designed and made to solve the above problem. They  work as follows. The receiving antenna on the roof of the car picks up signals from the nearby base station, and it is connected to the signal booster in the car through the feeder.Then the booster amplifies the signal and transmits it to the mobile phone by the coverage antenna in the car. Meanwhile, the mobile phone signal in the car is sent to the booster through the in-car antenna, and then amplified, strengthened and sent to the base station by the outside antenna to realize the call.