Go Back  DVD Talk Forum > General Discussions > Tech Talk
Reload this Page >

What does the comcast modem do?

Tech Talk Discuss PC Hardware, Software, Internet and Other Technology

What does the comcast modem do?

Old 06-11-08, 08:36 PM
  #1  
DVD Talk Limited Edition
Thread Starter
 
Join Date: Nov 2000
Location: Denver
Posts: 7,206
Likes: 0
Received 0 Likes on 0 Posts
What does the comcast modem do?

This probably sounds like a stupid question, but what does the modem I had to get to use Comcast do? I've got a wireless Lynksis router and an imac ready to receive the wireless signal. Does the Comcast modem just send out the signal to the router or something?
Old 06-11-08, 09:07 PM
  #2  
Member
 
Join Date: Dec 1999
Location: TX
Posts: 245
Likes: 0
Received 0 Likes on 0 Posts
In a nutshell...

The modem talks to the cable head-end system back at their facilities and acts as the communicator between you and them.

It takes the signal frequencies off the cable system and converts it to Ethernet so that your router/computer can communicate and vice-versa.
Old 06-12-08, 07:22 AM
  #3  
DVD Talk Limited Edition
 
Join Date: Jan 2000
Location: Rockford IL
Posts: 5,861
Received 6 Likes on 4 Posts
Sounds like a bunch of modulation and demodulation to me.
Old 06-12-08, 01:23 PM
  #4  
DVD Talk Limited Edition
Thread Starter
 
Join Date: Nov 2000
Location: Denver
Posts: 7,206
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by BeanDip
In a nutshell...

The modem talks to the cable head-end system back at their facilities and acts as the communicator between you and them.

It takes the signal frequencies off the cable system and converts it to Ethernet so that your router/computer can communicate and vice-versa.
Hmmm, that makes...sense.

I'm just wondering why I'm paying $3 a month for it. I'm assuming I can just go buy my own?
Old 06-12-08, 02:47 PM
  #5  
DVD Talk Special Edition
 
Mankal's Avatar
 
Join Date: Oct 2000
Location: Obama World, USA
Posts: 1,686
Likes: 0
Received 0 Likes on 0 Posts
It's COMCASTIC...it doesn't need to make sense.
Old 06-12-08, 03:05 PM
  #6  
DVD Talk Legend
 
Join Date: Mar 2003
Location: Lyon Estates
Posts: 10,795
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by bishop2knight
Hmmm, that makes...sense.

I'm just wondering why I'm paying $3 a month for it. I'm assuming I can just go buy my own?

yes. the one they use is a motorola one. I think newegg sells it.
Old 06-12-08, 03:06 PM
  #7  
DVD Talk Legend
 
Dr Mabuse's Avatar
 
Join Date: Jun 2007
Location: 75 clicks above the Do Lung bridge...
Posts: 18,950
Likes: 0
Received 1 Like on 1 Post
Originally Posted by BeanDip
In a nutshell...

The modem talks to the cable head-end system back at their facilities and acts as the communicator between you and them.

It takes the signal frequencies off the cable system and converts it to Ethernet so that your router/computer can communicate and vice-versa.
in a smaller nutshell...

it MOdulates and DEModulates the encoded data stream...
Old 06-12-08, 03:06 PM
  #8  
DVD Talk Legend
 
Join Date: Mar 2003
Location: Lyon Estates
Posts: 10,795
Likes: 0
Received 0 Likes on 0 Posts
I think it's this one:

http://www.newegg.com/Product/Produc...82E16825122001
Old 06-12-08, 03:08 PM
  #9  
DVD Talk Legend
 
Dr Mabuse's Avatar
 
Join Date: Jun 2007
Location: 75 clicks above the Do Lung bridge...
Posts: 18,950
Likes: 0
Received 1 Like on 1 Post
Originally Posted by bishop2knight
I'm just wondering why I'm paying $3 a month for it.
so Comcast can continue to be the multi-billion dollar monopolistic juggernaut it is...

they nickel and dime the customers to death...
Old 06-12-08, 03:12 PM
  #10  
DVD Talk Legend
 
Join Date: Oct 2001
Posts: 18,095
Received 37 Likes on 30 Posts
Originally Posted by bishop2knight
I'm just wondering why I'm paying $3 a month for it. I'm assuming I can just go buy my own?
You typically can. They run from $40-$100 depending on features. The cheapest Best Buy has is $60, which is 20 months of rentals, but you may be able to find cheaper new/used modems online.

Don't expect to be able to just plug the new cable modem in and go though. At the least, you'll have to call up your cable company and give them the MAC for the new modem (it will be written on the modem, most likely).

Some cable companies rent the modems for "free," as in they're included in the overall cost of the service. I had this situation occur when I bought a cable modem to save on the rental fee, then my provider stopped charging a rental fee for the modem. Luckily I had gotten the modem cheap, so I wasn't out that much, and may have even made the cost back before the switch.
Old 08-03-08, 05:44 PM
  #11  
DVD Talk Hall of Fame
 
Join Date: Aug 2003
Location: Boston, MA
Posts: 9,446
Likes: 0
Received 0 Likes on 0 Posts
I am getting this later this month. I assume the modem is different than a router? I have RCN right now and they give you a Gateway (combined modem/router that's wireless). If I want to have wireless in my apartment with the $3/month Comcast Modem, I'll have to get a Wireless router right?

Also anyone that has this router, do you know if it only has one port?

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.