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Smart Meter Extension Ring??

Posted By: AllClear

Smart Meter Extension Ring?? - 10/30/16 09:28 AM

Has Anyone seen a Meter extension ring? Wondering why the POCO would put one in when they put in the Smart Meter. I drove around to the other acreages around me, and nobody else has one.
I'm looking into this because i keep hearing 1 second pulses of audible noise out of most electronic devices in my home 1 to 10 times an hour.

[Linked Image]

I got a scope and managed to capture the waveform.
[Linked Image]
Yellow is the top of the Line to Neutral Waveform. Blue is N-Ground.

Anyone ran across this before?
How do smart meters communicate back to the POCO. I assume i'm looking at some type of power line carrier signal. Oscilloscope says it's around 5 Khz (4.24 to 6.58)

Justin
Posted By: mbhydro

Re: Smart Meter Extension Ring?? - 10/30/16 02:46 PM

Who is your provider?

I looked at the web sites of the two POCO's that are one the city of Belmond website and they both have info on how the smart meters they install transmit back to the utility.
Posted By: gfretwell

Re: Smart Meter Extension Ring?? - 10/30/16 05:25 PM

In Florida FPL uses a RF solution, transmitting to antennas on the poles. I suppose it is possible that your electronics are detecting this RF packet.
Posted By: AllClear

Re: Smart Meter Extension Ring?? - 11/01/16 03:06 AM

Well, I never bothered looking up my own POCO's website for info, It's a small Cooperative and i didn't expect anything, I just did general google searches, but i think i found the answer now.

From a PDF info sheet on their website,
"Information from the meter is sent back to the coop over power line carrier in hourly increments."

That means I'm hearing all my neighbors meter transmissions also. Explains why some are some are much louder than others. Wonder if I can decode them??
Most of the info i read about generic AMI or AMR smart meters talked about 900Mhz wireless transmission.

I had 4 scenarios that might be causing it to begin with, Fault to earth in an underground feeder was the most plausible one that concerned me, but after seeing the waveform on the scope I assumed it was power line carrier.
Damn signal turns the touch light by my bed on every day.
Posted By: AllClear

Re: Smart Meter Extension Ring?? - 11/01/16 03:16 AM

Still doesn't explain the extension on my meter socket. Has anyone seen one?
I wonder if it's because i have a tiny 60 watt solar panel on my roof for charging batteries. I'm not grid tied and have never inquired about it either.
Will new digital meters do net metering?
Posted By: gfretwell

Re: Smart Meter Extension Ring?? - 11/01/16 06:03 PM

I wonder it the jaws looked bad or were incompatible in some way when they installed the meter and they put some add on doo dad in there.
You could call in a "change the main breaker or tighten the lugs" deal, cut the seal and take a look if you were that curious. I know it is wrong but I have heard guys use that dodge to replace a panel without a permit. It usually takes a day or two for them to get back with a new seal.
Posted By: mbhydro

Re: Smart Meter Extension Ring?? - 11/02/16 04:00 AM

It sort of looks like one of the meter base whole house surge suppressors that I have seen pictures of.

Do any utilities still install them?
Posted By: twh

Re: Smart Meter Extension Ring?? - 11/02/16 05:30 AM

Is it a meter that collects information from surrounding meters and transmits the information to the utility?
Posted By: gfretwell

Re: Smart Meter Extension Ring?? - 11/02/16 07:04 AM

The smart meters here talk to a hub like this

[Linked Image]

They have an antenna like this up the pole a ways.

[Linked Image]
Posted By: AllClear

Re: Smart Meter Extension Ring?? - 11/04/16 01:55 AM

Greg, I wondered the same thing about the jaws being bad or incompatible. I've basically ruled out the incompatible part. That Leaves me with a couple plausible explanations.

A Power line carrier Amplifier,
A Net metering "adapter"
A filter or an arrestor
A damaged socket adapter

There is no antenna at or anywhere close to my service drop, but i don't expect one with power line carrier transmission.
I need to talk to my POCO and see what they say.

Interesting and bothersome that my house is the only place that people can hear it, and i have not read anything about anyone anywhere else experiencing it...


Posted By: gfretwell

Re: Smart Meter Extension Ring?? - 11/04/16 04:33 AM

These antennas are pretty far apart, about a quarter mile as far as I can tell.
I will look around the next time I am driving around in my golf cart and see how many I can spot. So far I only know of 2 in my neighborhood but there may be some I have not seen.
The last time I talked to my line man buddy, he did not know much about them. That was right about the time they installed them tho. Maybe he knows more about them. A different crew does this.
Posted By: twh

Re: Smart Meter Extension Ring?? - 11/04/16 06:00 AM

Cell Relay Smart Meter
Posted By: gfretwell

Re: Smart Meter Extension Ring?? - 11/04/16 03:33 PM

There you go!
I guess I was looking for the wrong thing. I imagine there are some fat meters scattered around the neighborhood
Posted By: HotLine1

Re: Smart Meter Extension Ring?? - 11/04/16 07:26 PM

twh:

That is the most informative link to information that I have seen in a long, long time.

Thank You!!!
Posted By: AllClear

Re: Smart Meter Extension Ring?? - 11/05/16 02:02 AM

Yeah, I've gotta chuckle at the scatterbrains that think an RF signal is gonna roast their gonads! Wonder how many years they sat in front of a cathode ray tube pointed at their head and it never bothered them! Hah! Wonder what kind of meltdown they would have if they could actually hear the PLC signals like i can in the house!
I Still gleaned a lot of info from that write-up and some of the other links about the system. Thanks TWH
Just for reference, I figured out the extension on my meter is a Cooper PRT-850 http://www.cooperindustries.com/con...stems/CPS_PowerLineCarrier_CCU721_PR.pdf
& The Meter appears to be an Itron Centron https://www.itron.com/na/technology/product-services-catalog/products/0/7/5/centron
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