ADSL (Asymmetric Digital Subscriber Line) is a type of technology that uses a copper telephone line and enables high-speed data transmission. Basically, ADSL consists of an asymmetric digital subscriber line, since data transmission is much faster from the network to the user that the other way round. Currently, ADSL is the most popular data transmission form of technology used in home PCs to connect to the internet since ADSL asymmetric speed turn out to be the most suitable one when it comes to download and upload speed.
Data transmission speed of a single ADSL line relies mostly on a significant environment factor: the distance between the provider’s central and your home. The greater the distance, the slower the transfer speed, since the signal degrades when noise is introduced, this happens at varying rates over distance and the noise's rate introduced depends on the environment.
For this reason, the greater the distance from the provider’s central, the great the signal attenuation, which could result in random connection disconnect. The conventional for a standard proper connection is up to 10km from the provider’s central. Currently, we can find numerous online tests on the internet capable of measuring our connection speed in mb/s, enabling users to know whether or not their ADSL connection speed is being influenced by distance.
The standard acceptable range for a quality connection is a 10km radius from the central.