[aprssig] It's Baaack BPL - Broadband Over Powerlines

Ev Tupis w2ev at yahoo.com
Sun Dec 17 05:48:08 CST 2017


There are plenty of details that don't fit in a "nutshell", Mark.

The context of my comment is important.  It started with a list-comment that assumed that AirGig was another deployment of the BPL technology that wreaked havoc in the past due in part to its' reliance on a balanced feed line (parallel power lines) to deliver data over long distances on HF frequencies (also a "nutshell" comment, of course).

Within that context, my statements - though abbreviated - were quite true and the concern was alleviated.  I even provided a link for the ARRL's position on the technology.

For those that would like to understand the underlying technology being applied, I would suggest some self-research. A simple Google search reveals much (that clearly isn't covered under NDA as my further participation in this discussion may-or-may-not be; lol).  Start with this excellent visualization: https://www.youtube.com/watch?v=4ApPDP_DbGc
Anyway, with that, I will QRX.

Best wishes,Ev, W2EV

Best regards,Ev



    On Saturday, December 16, 2017, 9:40:03 AM EST, Mark Cheavens <mcheavens at usa.net> wrote:  
 
  Ev,
 Not true.
 A. Cell get the power inductively from the lines.
 B. Site to site is using the power lines as 60g waveguide
 C. Site to home/business endpoint is via 5g.
 
 Without the "wires" they would not have the 60g waveguide, nor would they have a source for inductive power.
 
 Mark
 KC5EVE
 On 12/16/2017 4:46 AM, Ev Tupis wrote:
  
  In a nutshell, these are simply femto-cells that are linked to eachother via and RF backbone.  No reliance on wires at all.  The only association that they have to power lines is that they are co-located on utility poles. -Ev
  
  
  
     On Friday, December 15, 2017, 8:12:07 PM EST, Gregg Wonderly <gregg at wonderly.org> wrote:  
  
    I mean microwave and up high frequencies.  It sounds like 60g based on the other reply.  If so, then high power wave guide binding to the copper wire would be possible and it would be extremely clean of RFI it would seem. 
  Gregg
 
 
 On Dec 15, 2017, at 7:02 PM, noskosteve at yahoo.com wrote: 
 There's no guarantee that journalist knows that high frequency means HF.
 
 Regards, Steve Noskowicz K9DCI
 Science & Technical Advisor
 
 From my tablet.
 
 -------- Original Message --------
 From:Gregg Wonderly 
 Sent:Fri, 15 Dec 2017 18:50:46 -0600
 To:Brian Webster 
 Cc:aprssig at tapr.org
 Subject:Re: [aprssig] It's Baaack BPL - Broadband Over Powerlines
 
 That is not what I see. The first part of the article talks specifically about high frequency signals over copper wire. If they go high enough in frequency, the radiation into the atmosphere will be short lived, and the can  use higher voltages to get longer distances. The second part of the article talks about additional work on using RF to the home instead of physical fiber so that they can maintain their work within the right-of-ways and not have to run anything physical to your home, where trees and other debris end up destroying services in weather events.
 
 Gregg
 
 > On Dec 14, 2017, at 11:08 AM, Brian Webster  wrote:
 > 
 > This is not BPL, they are just mounting radios above the power space on utility lines. They are not modulating any signals over the power grid.
 > 
 > Thank You,
 > Brian N2KGC
 > 
 > -----Original Message-----
 > From: aprssig [mailto:aprssig-bounces at tapr.org] On Behalf Of Nick VA3NNW
 > Sent: Thursday, December 14, 2017 11:26 AM
 > To: aprssig at tapr.org
 > Subject: Re: [aprssig] It's Baaack BPL - Broadband Over Powerlines
 > 
 > Stephen H. Smith wrote:
 >> [...] AT&T begins testing high-speed internet over power lines [...] 
 >>  >> igh-speed-internet-over-power-lines-idUSKBN1E70GB>
 > 
 > Honestly? Can't kill this zombie? I thought fibre to the home was finally going to put this one to bed - you can push far more bandwidth down a glass pipe than a copper one anyway, with far less interference to OR FROM people like us,  emergency services, radio astronomy, etc, not to mention better EMP resiliency.
 > 
 > Perhaps FTTH isn't easy enough to wiretap? :-(
 > 
 > Nick VA3NNW
 > 
 > --
 > "Nosey" Nick Waterman, VA3NNW/G7RZQ, K2 #5209.
 > use Std::Disclaimer; sig at noseynick.net
 > Sauron is alive in Argentina!
 > 
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