Importance Of Antenna Separation For A Signal Booster

Cell booster antenna placement directions.

A cell phone booster is an essential device especially if you are living in an area where the cell reception is very weak. If the cell reception is weak, you might not be able to make a proper voice call or browse the internet. The cell phone booster will help you to resolve this situation by increasing the strength of the incoming cell signals.

Types Of Antennas In A Cellular Repeater

A cell phone booster has mainly two antennas. One is for receiving the outside cell signals and the other one is for redistributing the boosted cell signals to all the nearby cell phones. The receiver antenna is the external antenna and the other one is the internal antenna.

The external antenna is of two different types; omnidirectional and unidirectional. The omnidirectional antenna is used for capturing cell signals from all directions. The unidirectional antenna is only capable of capturing cell signals from one direction but it more powerful than an omnidirectional antenna. 

What Is Antenna Separation?

When you install the external and internal antennas of the cell phone booster system, it is extremely important to have enough distance between the two antennas. This separation between the antennas of the cell phone booster is known as antenna separation.

Antenna separation is very important for avoiding unnecessary interferences. If the external and internal antennas of the cell phone booster are mounted close to each other, they will start picking up each other’s signals and create a feedback loop, which negatively affects your cell phone booster. This feedback loop is known as oscillation.

When oscillation occurs, the cell phone booster won’t work properly and you won’t get proper cell reception. The oscillation can damage the cellular network. When the cell phone booster detects oscillation, it tries to reduce the gain or power to boost the cell signals. The reduction in gain reduces the indoor coverage area of the cell phone booster. This creates a weak output cell signal and affects the cellular repeater’s performance. 

If left uncorrected, oscillation will damage your cellular network. According to the FCC regulation, the cell phone boosters should be able to detect oscillation and should take countermeasures for correcting it. Normal cell phone boosters automatically power down when they detect oscillation. 

Solution 

The best way to avoid oscillation is by making sure that there is enough distance between the external and internal antennas. If you are using a unidirectional antenna, point it towards the cell tower and make sure that the internal antenna is facing away from the unidirectional antenna.

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