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keithr
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On 15/07/2013 11:30 AM, Rod Speed wrote:
different future, and will cost more in the end.
If they put in FTTN, it will inevitably be replaced in the not too far"Trevor Wilson" <trevor@SPAMBLOCKrageaudio.com.au> wrote in message
news:b4gq13F8n10U1@mid.individual.net...
On 15/07/2013 8:08 AM, Don McKenzie wrote:
On 14-Jul-13 3:57 PM, Trevor Wilson wrote:
On 14/07/2013 9:31 AM, Don McKenzie wrote:
On 13-Jul-13 2:45 PM, Trevor Wilson wrote:
**You're kidding, right?
According to Nyquist, fibre has a maximum capacity somewhere around
150Tbs. And, unlike wireless, it is not affected by
the number of users (yet). Best of all, when (if) humans can tap the
maximum capacity of a single fibre (which no one
has yet managed to do), then another fibre can be dropped into the
hole. Presto: Bandwidth doubled.
Fibre has a maximum capacity?
Japan's incumbent telecommunications carrier, NTT, is claiming a
telecommunications speed record, demonstrating a fibre technology able
to carry 1 Petabit-per-second - a million gigabits - over a
distance of
50 kilometers, using a single fibre.
http://www.abc.net.au/technology/articles/2012/09/26/3598036.htm
There are many Dr Google hits that refer to faster fibre methods.
Don...
**Every medium MUST have some kind of limit. Fibre's is so damned high
that we are unlikely to reach it for several
decades. Wireless is, of course, limited.
What I am saying Trevor is that you have to keep an open mind on new
technology. Doesn't matter if it is cable or wireless.
**I do have an open mind on new technology. It is sad that so many
people are politically motivated to dismiss fibre, when it's true
capacity is decades away from being reached. Wireless will get better,
but can never reach the capacity of a single fibre. Further: Any
compression schemes that can be used with wireless to increase
bandwidth, can also be used with fibre. If people could remove their
political thinking from the issue, most technologically savvy people
will acknowledge that fibre is far superior to wireless. Less visually
intrusive, no arguments about radiation issues, too.
AND, I have already stated that wireless is very useful and will
become more useful in the future. It is, however, not a panacea. I
live 25km from the centre of the largest city in Australia. Wireless
speeds are pitifully inadequate and extremely variable. The best ADSL
2+ speeds hover around 8 Mb/s. I look forward to fibre. I won't hold
my breath waiting for Telstra (or anyone else) to improve my wireless
capability.
The NBN may well do that.
I know that the NBN will eventually arrive (provided enough people
don't vote for that technologically illiterate moron, Abbott).
Even if they do, you will still get it, because the coalition has changed
their policy on the NBN and now just want to do it using FTTN instead of
FTTP. And I bet they discover that that isnt feasible when they get
elected.
Again Dr Google will find some interesting results today:
http://gizmodo.com/5954407/scientists-promise-ten-times-more-bandwidth-with-no-new-hardware
In 5 to 20 years time, the rules will change again.
No question, wireless is nifty. Fibre is and always will be, superior
in all respects, save portability.
The most important question is whether wireless will
be good enough for most. It isnt currently, but its less
clear how long that will be true for, particularly if most
use wireless most of the times.
And, possibly, cost (though I don't have the data for this area).
Its certainly much cheaper than FTTP.
different future, and will cost more in the end.