The importance of having a good antenna
4G routers and antennas are key elements for private wireless networks for businesses such as factories. In this article, we'll explain the importance of having a good antenna for your 4G router, and how it can improve your network performance.
4G radio signals
4G radio waves are electromagnetic waves used to transmit data wirelessly between devices equipped with 4G technology and mobile networks or to create private wireless networks.
These signals are measured in terms of power (dBm), quality and noise. Signal strength determines the strength of the signal you receive, signal quality determines the signal's ability to carry data, and noise is any interference in the signal.
What is dBm and noise?
As explained previously, the dBm is a unit of measurement which allows us to express the power of a radio signal. More specifically, dBm represents the power of a signal in milliwatts (mW) using a logarithmic scale. In other words, the higher the number of dBm, the stronger the signal (power doubles every 3 dBm).
Noise , on the other hand, is another element to take into account when it comes to understanding the quality of a radio signal. Noise can be defined as unwanted signals or interference that disrupt data transmission. Noise can come from sources such as cars, electrical generators, nearby electronic devices, or even weather conditions.
The relationship between signal level and noise level (both measured in dBm) is known as signal-to-noise ratio (SNR). The higher the SNR, the better the quality of the received signal. To calculate the SNR simply subtract the noise from the signal, for example if the signal level received by the antenna is -70 dBm and the noise level is -90 dBm, then the SNR would be 20 dBm.
The importance of having a good antenna for your 4G router
As we've seen, the quality of your network connection depends on several factors, including signal strength and noise. A good antenna can help improve both of these factors by picking up stronger 4G signals as well as using filters to eliminate unwanted signals.
It is also important to note that depending on where your antenna is located, you will have to choose between a directional or omnidirectional antenna.
If your router is located in a location where the signal is weak and comes from only one direction, then you will need to choose a directional type antenna. Otherwise, an omnidirectional antenna might be more suitable for use in a wider space where the signal comes from several different directions.
Conclusion
Antennas for 4G routers are an essential and important choice to improve the quality of your wireless network. By choosing an antenna that suits your needs and is of better quality, you can significantly increase signal strength and reduce noise, resulting in better network performance.
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