 Spiro0
join:2003-08-04
Austin, TX | 5 GHz wouldn't stay in the wires As far as I know 5 GHz might have lower losses in the air than in the wires, so it sounds like 802.11a is for the last 100 ft.
If they used the top of their poles to hold highly directional antennas or free space optics for backhaul we'd all be better off. |
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| said by Spiro0:
As far as I know 5 GHz might have lower losses in the air than in the wires, so it sounds like 802.11a is for the last 100 ft.
If they used the top of their poles to hold highly directional antennas or free space optics for backhaul we'd all be better off.
Corridor is using a technique similar to something called G-Line where the radio waves are propagated on the surface of the conductor, rather than actually being conducted through the line. They have a patent on this technology called E-Line. It would be extremely lossy as you have indicated if they were conducting it through the line. (Note that low speed HF BPL is lossy going through powerlines as well because the powerline acts like an antenna.)
The customer "drops" are probably wireless from the powerline into the house as I imagine the E-line technique would be problematic with twisted cable power drops and the old getting-past-the-transformer issue. They do appear to be using 802.11 / 5 Ghz for both the drops and the main system.
FSO would be nerdy cool, but a pain. Run fiber and all these issues go away  |
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| Excellent post, rf_engineer.
Quick, everybody, what's 54x4? Now that we've got that - what's the raw throughput of 802.11a?
Corridor just may be vaporware, and Corridor Systetms just might be abusing the term BPL for Broadband OVER Powerlines (not through them).
Understand that I'm not saying I have an excellent read on the situation, I'm just calling it as I see it. |
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Spiro0
join:2003-08-04
Austin, TX | reply to Spiro0
Re: Run fiber and all these issues go away Yeah, I would like fiber or the right kind of coax to my house. I think it is in the Netherlands you can get residential 75Mbps (using coax into the house) for the price of US cable -- although probably gov't subsidized. Sorry I can't find the link right now, but I think it is on DSLR.
Most companies are afraid to invest, which leads them down the easy but imaginary road of Broadband Over Pixies. |
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Spiro0
join:2003-08-04
Austin, TX | Correction: Sorry for the wildly inaccurate 75Mbps:o. it's 8Mbps/1Mbps ADSL from the Netherlands gov't owned phone company for € 75.00 / ~$91 USD.
The original topic is here: Look at this offer from ..... by georgequ |
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