[opendtv] Re: Spectrum is too valuable

  • From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
  • To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
  • Date: Fri, 6 Nov 2015 03:02:07 +0000

Craig Birkmaier wrote:

Sorry Bert, but Mother Nature disagrees with you. The MPEG-2 TS
streams are a broadcast service delivered to each home passed.
Broadband is a two-way unicast service;

Aaargh!

The downstream part of DOCSIS uses exactly those same 6 MHz channels as MPEG-2
TS might be using (actually DOCSIS 3.1 widens the channel, but that doesn't
change anything appreciably for this argument).

The upstream signals are combined from multiple homes, in a PON, however those
are usually lower capacity than downstream. Either way, though, any spectrum
taken up by broadcast one-way streams takes away from the broadband service,
within that PON structure.

No amount of words will take away from this simple fact, Craig. You can't fool
mother nature.

Bert



----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:

- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org

- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.

Other related posts:

  1. Home
  2. opendtv
  3. Archive
  4. 11-2015