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   comp.protocols.tcp-ip      TCP and IP network protocols.      14,669 messages   

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   Message 13,526 of 14,669   
   glen herrmannsfeldt to Albert Manfredi   
   Re: Broadband network in U.S. may be bet   
   20 Jul 10 23:23:23   
   
   4327fea9   
   From: gah@ugcs.caltech.edu   
      
   Albert Manfredi  wrote:   
   (snip)   
      
   > There is no "broadband network." There are broadband last-mile links   
   > to indviduals, and these tie into the Internet. The speeds experienced   
   > by any user depend heavily on the user's own ISP's network (I mean,   
   > the whole ISP network, not just the last-mile links) and on where the   
   > particular server this person is dealing with, at the moment, is   
   > located, with respect to the ISP/s network.   
      
   It is a strange term.  As far as I know, it came from the relatively   
   (to the center frequency) broad channels required for television.   
   That is, audio/radio would be considered narrow (10kHz/1MHz or   
   200kHz/100MHz), and TV broad (6MHz/57MHz at channel 2).   
   (The design of filters is more complicated as the relative   
   bandwidth gets higher.)   
      
   Now, as the carrier frequency increases the relative bandwidth   
   decreases, so that much of our current internet is now narrowband.   
      
   > "Broadband" only refers to the final drop to your home or wireless   
   > appliance. It does not refer to some fictitious make-believe "other   
   > Internet."   
      
   I suppose I don't understand this, one way or the other.   
   As ethernet, likely used within an ISP, is baseband it doesn't   
   count as either broad or narrowband.   
      
   -- glen   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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