nanog mailing list archives

Re: Broadband v. baseband ... again?


From: "Christopher B. Zydel" <czydel () cv net>
Date: Thu, 5 Jul 2001 13:56:29 -0400


If you want to get to the root of these terms, without getting caught up 
in all of the ways their meaning has been distorted, the best place to look
may be a dictionary. 

In baseband signalling, you have one signal using all of the bandwidth
available on the wire.  In broadband signalling, there are multiple signals
on the wire, multiplexed in the frequency domain.  

On Thu, Jul 05, 2001 at 01:23:51PM -0400, Miles Fidelman wrote:

On Thu, 5 Jul 2001, Roeland Meyer wrote:

Broadband isn't a speed, it's a signaling architecture. The alternative is
baseband. Ethernet is baseband. Broadcast radio is broadband. Now that you
have the two competing terms, please see your friendly neighborhood search
engine (PSYFNSE).

Though, to be fair, a lot of people have coopted the term "broadband." You
and I know that broadband is defined in the 802 series of specs as a way
to run ethernet over an analog cable system. But... the cable companies
would have you believe that it means "the fastest thing going" and the
telcos would have you believe that DSL is "broadband."

Miles


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mfidelman () civicnet org                         http://civic.net/ccn.html

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