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Docsis 3 versus AT&T DSL in Atlanta

by Tom Christner / January 10, 2010 12:34 PM PST

Nine and four years ago, I had Comcast internet service to my home. It seemed to get very slow when the kids got home from school or the downloaders got their computers reved up.

Recently, Comcast has deployed Docsis 3 in my area. I hear the tech journalists and pundits brag it up, but how about you? Is 20 MPS THAT much better than my 6 MPS from AT&T?

It costs more for Comcast, I will have to change my email address again, and the Comcast technicians seem less informed than those at AT&T. On top of that, AT&T doesn't have a 250 GB cap.

Is it worth it?

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docsis 3 is far better here's why
by jayw654 / July 14, 2010 4:18 AM PDT

To your reply, I'm a heavy downloader and I have never recieved a phone call about going over my cap. Now I believe the cap is only enforced if there are blatant abusers. I have the 5mbps up and 22mbps down so i pay for a docsis 3 package and I believe that the higher you go in a service package the more lenient they are about the cap. I average 350gig a month and since I have the type of package I have I believe this is the reason I have not received a call. Now if I had a 10mbps package with the same amount of download then I would most likely have to worry about a phone call. Now the service quality is by FAR better the type of signal they use is SCDMA for docsis 3 now i'm not going to be technical but Verizon uses CDMA. Now I understand this isn't a cellphone conversation but CDMA isn't as prone to interference and using a variant of the signal for cable internet makes it very stable. Docsis 3 also offers multichannel connections which means rather than having 2 separate paths for data 1 for upstream and 1 for download, Docsis 3 offers 2 upstream channels and 4 download channels. This helps dramatically when it comes to lag. So long story short the only thing out there that will beat docsis 3 is a fiber optics line to your home and even still it still not going to be that much better as all the internet lines on the backend of Comcasts internet service are already fiber.

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I have doubt about what jayw says about DOCSIS3.
by ahtoi / July 14, 2010 11:24 AM PDT

It is true the capabilities of D3 is better than D2 but I doubt you will profit from it without you paying more. The reason I am not getting the max. bandwidth now is not because I don't have D3 I can assure you. I only have 2 TV and one internet in this house. Most of the time I do not get the maximum. but what I got was enough to satisfied me comparing to DSL (not FiOS) that I had.

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