w2co
join:2003-07-16
Longmont, CO
| reply to gsellers
Re: We already have wireless...
"lets plug the powerline directly into your expensive new pc, so when lightning hits the line it for sure zaps the heck out of it...."
Very good point. As a matter of fact, most UPS equipment with EMI filtering built in (most have this) will not work with BPL. You would have to run with no EMI/UPS/surge protection because it will block the BPL signal. |
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dvd536
as Mr. Pink as they come
Premium
join:2001-04-27
Phoenix, AZ
| said by w2co  :
"lets plug the powerline directly into your expensive new pc, so when lightning hits the line it for sure zaps the heck out of it...."
Very good point. As a matter of fact, most UPS equipment with EMI filtering built in (most have this) will not work with BPL. You would have to run with no EMI/UPS/surge protection because it will block the BPL signal.
And how is this different from your cable modem which hooks to cable on the same poles as powerlines and has wire going from the modem to your NIC?
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You can never be too rich, too thin or have too much Bandwidth |
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w2co
join:2003-07-16
Longmont, CO
| Well most cable systems have surge protectors along the poles that absorb any surges to ground before they reach the cable box in your home. There are strict guidelines the cable companies adhere to in order to meet the rules requirements, most importantly they keep their wideband signal shielded with coax cable and do maintenance regularly and respond to interference complaints stat. Their system is completely isolated from the ac power lines except for powering their inline amplifiers. Now with BPL, all they are going to do is place a two way bypass on the transformer that will pass both ways any rf signal above around 500Khz or so, and lightning in Colorado is fierce at times as any Coloradoan knows, the bypass devices will certainly fail, but which way will they fail (short or open) no one knows yet. The companies state very little about these bypass devices and I know they have not tested them very much. By doing this (placing bypass devices) it also will enable every part 15 device in use today to also become wide area radiators, this will blow away the "point source" factor in part 15 rules that has helped so often in the past in fixing interference complaints. Anyway you look at this technology, it is just a bad idea. |
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