What Is the Best Internet Service?
Cable and DSL are two of the primary contenders for your broadband Internet budget. Depending on your area, Internet access providers, called ISPs, may offer you a choice between either service. One aspect to take into consideration when faced with a decision on one or the other is the consistency of speed. There are several factors affecting speed in either service type.
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One major difference between cable and DSL Internet access affecting speed consistency is shared bandwidth. Cable Internet service provides access to many users through shared bandwidth, whereas DSL doesn't share bandwidth between users. As any given ISP doesn't have infinite bandwidth, what is available must be shared between subscribers. This means that at peak usage times, cable bandwidth is split between many users, while at low usage times bandwidth is split between fewer users. DSL Internet access provides better speed consistency when viewed through the lens of shared bandwidth.
Available Speed
When comparing speed consistency, available speed must also be taken into account. In theoretical terms, cable-based Internet access has the potential for the highest possible speeds, but in practical terms, ISPs cannot offer users the ability to reach this limit. This means that, in terms of consistency of speeds actually available to subscribers, DSL and cable access are essentially tied. Different levels of speed are available from cable service providers, though, so a possible tiebreaker you can use is to simply check the maximum available speeds for both DSL and cable Internet providers in your area.
Distance
Distance from your provider's service can also affect the consistency of your broadband connection speed. This phenomenon is called "Distance Sensitivity." This applies primarily to DSL access types, as cable access is not susceptible to this sensitivity. Your DSL speed is determined in part by your distance from the service provider, whether that be from its offices or service hubs. Service is limited to a maximum of approximately 18,000 feet, with noticeable service degradation occurring around the 10,000 feet mark. Cable Internet provides more consistent speed from a distance.
Conclusions
Each type of service offers different advantages and disadvantages when considered in terms of speed consistency. Your cable speed may be hampered by a large number of users, while your DSL speed may degrade based on your distance from the service. When deciding between the two you should also take other factors into account. These are mostly ISP oriented. Questions to ask after considering speed include monthly fees, equipment costs, installation charges and other any incidental fees.
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