The quality of the Internet connection can be affected by different factors that affect the signal such as noise or attenuation. To check the status of an ADSL line you can check noise and attenuation, which are one of the many causes that usually affect the network.
Attenuation on an ADSL line
It is known as attenuation at decreased signal strength due to distance from the phone line. The more distance there is between the control panel and the network access point (the modem), the lower the signal strength. Another factor that could cause attenuation is that the cable is joined with one or many jumpers, which is considered a bad installation.
In general, each type of network has distance restrictions to avoid attenuation. If the signal becomes too weak, the receiving equipment will not receive the information well or it will be delivered incomplete.
Fiber optic connections have an attenuation level of 1 dB for each kilometer run. While the connections with copper UTP cable used in ADSL connections have a loss of 10dB per kilometer.
For avoid attenuation repeaters or amplifiers are often used to increase the signal strength, since the cable is usually limited to a specific distance.
How to query and improve the attenuation
Attenuation is expressed in logarithmic units such as decibel (dB), since it is a simpler measure to perform calculations. Its value is exponential and the lower its value, the lower the attenuation level that the connection presents.
One way to identify if there are attenuation problems in the network is testing the termination point. It can also be checked from the router configuration, usually it has a tool included to know the level of attenuation that exists.
Dimming faults generally cannot be controlled if the fault is outside our home. In any case you can check the condition of the network cables found inside the house. If they have suffered deterioration or any physical damage, it is best to replace it.
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ADSL installations must be done with a microfilter that separates the voice and data signal. Added to this, ADSL connections should not be made over a PCR line because it interferes with the transmission of information.
Noise on an ADSL line
The term noise in the telecommunications area is associated with the signal interference from electrical appliances. The level of signal interference will depend on the degree of disturbance that the device causes.
Unlike dimming noise does not interfere with the correct transmission of data as long as the signal strength is greater than noise.
How to check and improve noise
The noise level is measured in SNR or decibels, although the noise level is SNR term is the most used in ADSL devices. To identify the noise level in the connection, it is necessary to access the router configuration with your username and password.
Inside the settings page you should look for the option SNR Margin or something similar, it may vary depending on the router. Here the noise level that exists in the connection will be displayed, which is usually a value.
If the value is less than 6 dB then the noise is considerable. If the value obtained is between 7 dB and 10 dB, there is a lot of noise present in the connection. Optimal values are between 11 dB to 20 dB.
To improve the connection, the installation time of the cables and devices must be evaluated. Like the state of the cables, because if present moisture can generate excessive noise.
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Do installations with good quality cables And avoiding bridges is extremely important. Check the status of the microfilter and the connection devices such as the router or the modem.
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