How To Prevent Feedback Or Oscillation In Signal Booster Installations

A cell phone booster is the most cost-effective and easiest solution to signal issues. The simple device operates by capturing cellular signals from the outside and amplifying these signals in order to rebroadcast them to required points. 

The smooth operation of signal boosters can be affected by various factors, and oscillation is one among them. 

What Is Oscillation?

The classic example of oscillation is the event of a microphone and speaker coming very close to each other. The resulting oscillation manifests itself in the form of sharp noise that seems to pierce our ears. However, with signal boosters, oscillation or feedback produces an altogether different effect. Oscillation in signal boosters might lower the antenna gain and in the worst case, might cause the system to turn off. The booster shuts off in order to prevent the damage that oscillation could cause to the booster system.

In cell phone boosters, oscillation results when the outside antenna picks up the signals broadcasted by the internal antenna and forces it through the amplifier. The signals sent out after amplification by the booster will have background clatter due to oscillation. If the amplifier faces oscillation for longer periods of time, for example some successive weeks, the cellular signal booster might stop working altogether. 

How To Prevent Oscillation?

Adopting proper installation procedure reduces the possibilities of oscillation. If the distance between internal antenna and external antenna is not maintained properly, there is a high chance for oscillation, with each antenna picking the signals sent out by the other. 

It is generally true that cell phone boosters have the capacity to detect oscillation automatically. After detecting oscillation, the gain of the booster is lowered down automatically to correct the issue. The signal boosters usually turn off after detecting oscillation to prevent any possible damage that could happen to the booster. 

How To Decide The Appropriate Minimum Separation? 

If you have planned to do the cell phone booster installation on your own, you can check up the minimum separation from the booster guide of that model. During installation, maintain a vertical distance of 25 feet to 30 feet between the antennas. If maintaining the vertical distance is impractical, you may accomplish the minimum distance separation by maintaining an ideal horizontal distance. However, make sure that the horizontal distance is much longer than the vertical distance.

Following all the installation steps thoroughly ensures the safe operation of the signal booster with signals free of any distortion or loss of gain caused by oscillation.