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

noskosteve at yahoo.com noskosteve at yahoo.com
Fri Dec 15 19:07:35 CST 2017


I haven't seen my previous comment reflected, yet, so...I resend it:

RF EE  with a touch of experience from the old BPL era weighs in...
  
That first article mentions 60 GHz backhaul and 60 HGz to the home. With those 30° sector antennas this implies line of sight back hall.
That second article Echoes the old G-line transmission line concept of RF propagating on the outside of an insulated wire where it mentions the car parts store funnel launchers.
I'm guessing that the reference in the article to HF is the journalistic technical term meaning "anything having to do with something called radio waves, whatever-the-hell they are".

  So, until I can call AT&T to see if I can get any specifics, it may either be 60 gigahertz line-of-sight or 60 gigahertz along the wires.

Regards, Steve K9DCI

-------- Original Message --------
From:Gregg Wonderly <gregg at wonderly.org>
Sent:Fri, 15 Dec 2017 18:50:46 -0600
To:Brian Webster <info at wirelessmapping.com>
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 <info at wirelessmapping.com> 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 [...] 
>>> <https://www.reuters.com/article/us-at-t-internet/att-begins-testing-h
>>> 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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