After having DSL dropouts and experiencing sluggish internet speeds, I decided to do a little research on the topic. How do I get a better DSL signal? I did some reading and found some excellent sources.

I was trying to find out more then you ever wanted to know about DSL Filters! The primer informed me that telephone voice uses a certain frequency range, which is 0-4 kHz.

DSL data uses a higher frequency range, which is 26-138 kHz for the upstream, and 138-110 kHz for the downstream.

So, we have two different range of frequencies designed to perform two different tasks. This is where the filtering comes in to play. The little filter which the phone company gave us is called a microfilter and this is standard with DSL users. This is what we use to split these two separate frequencies.

However, there is an alternative. It’s called a DSL Pots Splitter. This is technically the better choice of the two.

A DSL Installation Tutorial gives us more details and provides a better explanation. As the author explains, “the DSL signal doesn’t interfere with phones…it’s the other way around.”

If reliability and speed are important to the DSL user, then an Outdoor POTS Splitter-SE-649A1 may be of help, especially if there are a lot of DSL problems. Then this would be a good option. Wiring the DSL Splitter is not too bad of a job.

The local tech (who happens to be a lineman) said to watch out for the Signal to Noise Margin. I must admit he was right and I was wrong about our argument. Pay attention to this one.

As they say, do not expect miracles. Some computer users will benefit from this DSL POTS splitter, while others will not see a significant difference. One thing is for sure though. The POTS splitter is technically superior.

And there are other hints that most of us already are aware of. Using the Category 5 cable whenever possible is highly recommended. Also, limiting the amount of T adapters and splitters will be beneficial.