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insomniac84

join:2002-01-03
Schererville, IN

BPL may be good.

I looked around to see what the max speeds were:
»en.wikipedia.org/wiki/Power_line···er_lines
According to that it can max out at 200mbps and its symmetrical. If that is true, BPL makes sense.

nasadude

join:2001-10-05
Rockville, MD
Reviews:
·Verizon FiOS

said by insomniac84:

I looked around to see what the max speeds were:
»en.wikipedia.org/wiki/Power_line···er_lines
According to that it can max out at 200mbps and its symmetrical. If that is true, BPL makes sense.
those speeds are probably the theoretical maximums, obtainable only in simulations or under laboratory conditions. Nobody currently offering or thinking of offering BPL is anywhere near these speeds, or will be anytime soon.


Transmaster
Don't Blame Me I Voted For Bill and Opus

join:2001-06-20
Cheyenne, WY

reply to insomniac84

said by insomniac84:

I looked around to see what the max speeds were:
»en.wikipedia.org/wiki/Power_line···er_lines
According to that it can max out at 200mbps and its symmetrical. If that is true, BPL makes sense.
These are the claims made by the BPL industry mostly to sucker investors in.
--
The older I get the more I prefer the company of my dogs over that of man kind.


cableties
Premium
join:2005-01-27
Reviews:
·Verizon FiOS

reply to insomniac84
I had been doing trials with some transformers-on-ethernet and let me tell you...after 30 days, each would just fail. Now these were just ethernet over power convertors, but I was disappointed to have to use 6 in two months. And speed was more like 1.4Mb/s over a residential 12/3 wiring. (may even been 14/2 in some rooms).

We suspected it was the "quality" of the power (spikes, surges, brown outs, dips..). And this was not even during the prime storm months (June-August and Winter season).

I wonder how the HAM ops feel over this one.



insomniac84

join:2002-01-03
Schererville, IN

reply to nasadude
Well AT&T right now is banking on theoretical maximums to keep dsl alive, so working towards a theoretical maximum doesn't mean the technology is trash.


nasadude

join:2001-10-05
Rockville, MD
Reviews:
·Verizon FiOS

said by insomniac84:

...so working towards a theoretical maximum doesn't mean the technology is trash.
the fact that BPL might never reach it's theoretical maximum isn't why I'm not so enthusiastic about BPL. I was just pointing out you shouldn't hold your breath waiting for those speeds.


rf_engineer

join:2003-08-04
USA

reply to insomniac84

said by insomniac84:

I looked around to see what the max speeds were:
»en.wikipedia.org/wiki/Power_line···er_lines
According to that it can max out at 200mbps and its symmetrical. If that is true, BPL makes sense.
That's a bit simplistic. There's more to a broadband solution than just bandwidth, otherwise fiber would totally negate the need for dsl, cable, or wireless. BPL has significant backhaul costs and equipment costs. Has anyone shown a 200 Mbs system yet that actually delivers anything close to 200 Mbs to the end user (and is cost effective and doesn't trash 30 Mhz of spectrum)?


rf_engineer

join:2003-08-04
USA

1 edit

reply to insomniac84

said by insomniac84:

Well AT&T right now is banking on theoretical maximums to keep dsl alive, so working towards a theoretical maximum doesn't mean the technology is trash.
There's a big difference here. DSL is banking on theoretical limits that are actually achievable with the physical medium (copper twisted pair does 250 Mbs on one pair in gigabit Ethernet). The BPL industry is banking on a 1 Gbs theoretical limit on a medium that is built for perhaps 500 kHz of bandwidth. (That's kilo, not megahertz.)

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