What is Cell Repeaters
Post by Jawad Ahmad Riaz
Introduction to cellular repeater
A cellular repeater or any wireless cellular signal boosters are considered as bi-directional amplifier (BDA). BDA is the name that is used in the wireless telecommunication industry for these repeaters. This is therefore a device which uses to boost the cell phone reception to the local area with the help of reception antennas, signal amplifier and an internal rebroadcast antenna. All these booster or antennas work on the same fundamentals as cellular broadcast towers do for the broadcasting but these are done at a small level.
The coverage that is provided by these cellular repeaters is limited within a building mostly. But if we talk about the latest developments then we can find that modern repeaters are now also working inside the buildings. These antennas are usually installed outside the buildings so that best cellular signals can be collect. Once the signals are collected then they use to be transmitted to the amplifier unit to amplify them. Then these signals are retransmitted again locally with more strength in them. Some latest models are also providing the service to multiple cell phones at a time instead of single and those are much suitable for home use and commercial use but at small level. Market for cellular repeaters is growing rapidly and it is expected that this growth rate will rise in the coming years as well.
The basic idea behind the introduction of these repeaters was to improve the network coverage in those areas where poor coverage is available. This system also helped in departure form the landline system to cell phones.
Components of Cellular Repeater: A cellular repeater is mainly consisted on three components or parts and all of them work as a team in the working of this repeater. These parts are as followed;
External Directional Antenna: these antennas are very important part of repeaters but they are not found in all the models on these repeaters. The main purpose of using them is to gain the significant signal strength. If this external antenna is in repeater then best possible signals can be catch when antenna is installed outside the building. The alignment of this antenna use to be in the direction of nearest cell tower. The larger this antenna is the better would be the strength of singles.
- Internal Rebroadcast Antenna: to extend the capabilities of repeater, with external antennas an internal antenna is also used. These internal antennas are used for rebroadcasting of signals internally, and with this signals use to be equally distributed in all the directions. Because all radio antennas are intrinsically polarized, cell phones perform best when their antennas are oriented parallel to the booster's antenna.
- Signal Amplifier: Signal amplifier is must in all the models of repeaters. Form the cheapest home use repeater to an expensive office use repeaters. And if we talk about excellent high power models then we can enjoy around 100dBm.
- Why Signals Use To Drop? Signals use to drop after the usage of cellular repeaters due to some very basic reasons. Some of them are going to be discussed here
Rural Areas: in rural areas the density of houses use to be low because of which there is always a problem to construct base stations which would be available commercially. In these situations it is responsibility of service provider that he do some arrangements for the improvement in the network services. In these cases the installation of a cellular repeater will generally massively increase signal strength just due to the amplifier, even a great distance from the broadcast towers.
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