What You Should Know Before Installing Cell Phone Booster For Metal Building?

Cell Phone Booster
Cell Phone Booster
Cell Phone Booster
Cell Phone Booster

The quality of cellular signals is very much influenced by environmental factors and the materials used in the construction of buildings. The latter factor is evident when the call quality drops on entering tunnels, metal buildings, etc., and this is because metals deteriorate signal strength. Metals affect signal strength resulting in dropped calls, and reduced internet speed. One of the best ways to overcome this is to use a cell phone booster to improve signal strength. In this article, we will discuss installing signal booster in a metal building, read on to know more about it.

Cell Phone Booster For Metal Building

Most of the buildings use metal in their construction in the form of steel rods, mesh wire, aluminium walls, etc., and these metals are good at blocking wireless signals like cellular and Wi-Fi signals. Because of this, metal buildings like warehouses are by default places with reduced network connectivity. The best way to overcome this issue is to install a signal booster that is optimized to be used inside such buildings. These devices receive weak outside signal, amplifies them, and retransmits to your phone so that you get good call quality.

The Working Of Cell Phone Signal Booster Inside A Metal Building

Cell phone signal boosters have three basic components the outside or donor antenna(s), the amplifier, and the inside antenna(s). The outside antenna captures the weak cellular signal and transmits it to the amplifier where it is amplified. This amplified signal is then retransmitted to your cellular phone. Moreover, it is a two-way device, i.e. it transmits the signal from the phone back to the cellular tower. Also, the signals are relayed between these components through coaxial cables, and the quality of the cable affects the performance of this device.

The performance of a cell phone booster depends on the quality of the input signal and this is very much influenced by the outside antenna used. It is good to use an antenna with better gain to ensure quality output by the signal booster. There are mainly two types of donor antenna omnidirectional type and unidirectional type. The former captures signals from a 360o field, and it is suitable when you need to boost signals from multiple carriers, while the latter captures signals from one direction, i.e. its field of capture range up to 90o.


When installing the cell phone booster, ensure that there is a minimum separating distance between the outside and inside antennas. This is to prevent the formation of a positive feedback loop or oscillation between them. Oscillation reduces the performance of the device, and it also affects other devices in its service range.

These are the points that you should bear in mind when installing a cell phone booster for metal building.