Keithb
join:2003-09-16
US
| reply to manshack_one
Re: BPL competition
The Turtle system is a form of BPL, but more Power Line Carrier (PLC). It's the same principle but far smaller bandwidths. It might take a turtle meter 2 weeks to send in a reading, thus the name turtle. The system we use has devices that can be read in real-time and meters read in less than 3 seconds.
I'd like to see any venture succeed that will provide broadband to rural residents. We are a co-op and that is our goal, to provide services to areas that investor owned companies won't. They should all work together, but not STOP it in it's tracks. I don't believe it will ever be stopped, maybe modified. I think it will be a matter of cooperation, and a matter of making it cost effective.
I personally don't even know the use of Ham, or ever seen the radios, although I've seen homes with 20 antennas on a tower. lol Not something I've ever looked into I suppose. |
|
lutful
Premium
join:2005-06-16
Ottawa, ON
 ·TekSavvy Solutions..
| said by Keithb  :It might take a turtle meter 2 weeks to send in a reading, thus the name turtle. A genuine turtle meter. 
Did some more research ... it seems that current BPL chips use standard OFDM with carriers in the Mhz range. So any nearby HAM transmission could reduce BPL throughput. 
But if the carriers were in the KHz range, almost no one will complain about BPL interference. Very reliable and interference-free 1-10 Mb/s over PL should be possible depending on cable length and transformers, etc.
But most likely they need to use MIMO technology like this one used for 10 Gb/s Ethernet over unshielded CAT6 cable.
»www.solarflare.com/ |
|
Keithb
join:2003-09-16
US
| said by lutful :A genuine turtle meter. Actually, that's not a turtle meter, just a standard GE electro-mechanical meter with the Turtle module. The turtle module can be put on just about any meter, as they now even have a solid-state module that's used with Icon/Sensus solid state meters, or Itron. I can't remember.
We do not use Turtle for a bunch of reasons, but they use the same PLC technology. Our PLC is similar to the 900mhz. We have a CCU (Carrier Control Unit), an SCU (Signal Control Unit) that couples to capacitors and Primary capacitors.
I was hoping we would be able to do a pilot program for one of the BPL vendors but I guess our pockets aren't big enough although we're 90% rural. |
|
