[dba-Tech] modem/router

Hi John

That widget is a condensator, not very large - 10 nF will do, I guess, though high voltage of course - but the difference with the new products is, that they run on much higher frequency, so high that the capacity of the wiring alone should be able to transfer the carrier from one power phase to the other (US, the other two in Europe). Read on here:

Powerline Communications Cross-phase Coupling

  http://www.intellon.com/pdfs/whitepaper_PLCCrossphase.pdf 

/gustav

>>> jwcolby at colbyconsulting.com 15-04-2008 15:53 >>>
There is an additional issue here which is that electrical power systems 
can come off of opposite sides of the 240 volt lines.  These "wiring" 
networks work just fine for all sockets on the "same side" of the 
circuit but completely fail for all sockets on the "opposite side" of 
the circuit.

IOW the voltage brought into your house has TWO 120 volt "sides".  In my 
case one half (roughly) of my house runs on one side, the other 1/2 runs 
on the other side.  I assume that is to "balance" the load on the lines 
coming in though it may simply be chance.  Not sure but I know that this 
house will not support a "wiring" network, or more literally, you will 
get signal to 1/2 of the house.  I have heard that there is a widget 
that can be placed across the two "sides" to cause the signal to route 
over to the other side.

Perry L Harold wrote:
> Rocky
> 
> The success of this wireless may depend on the wiring.  I tried it with
> Homeplug from Gigafast and never was able to make any successful
> connections.  That was one of the first efforts at the technology and my
> house is 40+ years old with equivalent wiring.  Maybe the devices are
> more advanced now and the chances of success are increased.
> 
> When I switched to regular wireless it installed with no problems.
> 
> 
> Perry Harold
> Professional Testing Inc
> 
> 
> -----Original Message-----
> From: dba-tech-bounces at databaseadvisors.com 
> [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Rocky Smolin
> at Beach Access Software
> Sent: Monday, April 14, 2008 8:00 PM
> To: 'Discussion of Hardware and Software issues'
> Subject: Re: [dba-Tech] modem/router
> 
> Susan:
> 
> I had all kinds of problems with wireless in the house.  Replaced it
> with
> these:
> 
> http://www.amazon.com/NETGEAR-XE102-Wall-Plugged-Ethernet-Bridge/dp/B000 
> 2IHP
> 58 
> 
> Foolproof.  Just plug and play.  No software.  No configuring.  Perfect
> - like a hardwired connection.
> 
> Rocky
> 
>  	
> 	
> 
> -----Original Message-----
> From: dba-tech-bounces at databaseadvisors.com 
> [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Susan
> Harkins
> Sent: Monday, April 14, 2008 3:49 PM
> To: Discussion of Hardware and Software issues
> Subject: Re: [dba-Tech] modem/router
> 
> :)
> 
> I admit, I was confused! :) Did I use the wrong term?
> 
> Susan H.
> 
> 
>> OK - TOTALLY disregard the response I just sent. I totally 
>> misunderstood what you were asking for!
>>
>> John B.
>>
>> -----Original Message-----
>> From: dba-tech-bounces at databaseadvisors.com 
>> [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Susan 
>> Harkins
>> Sent: Monday, April 14, 2008 5:36 PM
>> To: Discussion of Hardware and Software issues
>> Subject: Re: [dba-Tech] modem/router
>>
>> It's cable internet and I think we need the modem, but maybe we don't?
> 
>> We're
>> just trying to hook up other computers.
>>
>> We had a wireless setup several years ago that worked really well, but
> 
>> i don't remember if the modem was "special" or what -- I don't 
>> remember anything about the hardware.
>>
>> Also, how does wireless handle stories? This house has two floors.
>>
>> Susan H.