[Boatanchors]
Revcom
revcom at wbsnet.org
Mon May 19 12:20:40 EDT 2008
Probably not a whole lot as they are spread spectrum and digitally encoded
with random addresses. Have seen them work when all else craps out.
Rod
----- Original Message -----
From: "jeremy-ca" <km1h at jeremy.mv.com>
To: <n_griggs at bellsouth.net>; "Richard W. Solomon" <w1ksz at earthlink.net>;
<boatanchors at mailman.qth.net>
Sent: Sunday, May 18, 2008 8:31 PM
Subject: Re: [Boatanchors]
> I wonder how 300W on 902 MHz would affect that system?
> Which is what my surplus Eimac cavity will put out. Then add in the
roughly
> 20dB of antenna gain and pointed directly at a neighbors meter.
>
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: <n_griggs at bellsouth.net>
> To: "Richard W. Solomon" <w1ksz at earthlink.net>;
> <boatanchors at mailman.qth.net>
> Sent: Sunday, May 18, 2008 8:28 PM
> Subject: Re: [Boatanchors]
>
>
> >
> > Here in North West Georgia, Greystone Power is switching to the 'remote'
> > meters. I have done some research on the units they are installing.
The
> > RF unit is made by a company in the Atlanta area that makes these
modules
> > for most any type of remote monitoring. The meters are made by
> > Landis+Gyr, a company that makes digital readout watthour meters.
> > According to the FCC ID number on the one at my house, these units use
> > spread spectrum between 910.5 and 927.5 MHz under part 15C with an
output
> > of .383 watts. These units also have an internal receiver and unique id
> > so each unit is individually addressable. They can also be used to
> > pinpoint power outages since there is at least a 2.5 Farad capacitor
> > visible from the side for powering the unit for a limited amount of
time.
> >
> > Neal KC4YCM
> > -------------- Original message from "Richard W. Solomon"
> > <w1ksz at earthlink.net>: --------------
> >
> >
> >> There's nothing new under the sun ...
> >>
> >> Many moons ago (1970's) I worked for a company in Cambridge, MA,
> >> who developed a product line of meter readers that transmitted the
> >> data back over the power lines.
> >> It was a flop back then, let's see how this reincarnation works
> >> out.
> >>
> >> 73, Dick, W1KSZ
> >>
> >> -----Original Message-----
> >> >From: Glen Zook
> >> >Sent: May 9, 2008 12:46 PM
> >> >To: RKofler at aol.com, boatanchors at mailman.qth.net
> >> >Subject: Re: [Boatanchors] "Smart" Electric Meters
> >> >
> >> >It depends on what frequency they are using. When I
> >> >was with TXU (electric company for almost half the
> >> >State of Texas) they were using their 896 MHz trunking
> >> >system to read the meters. This caused no problems.
> >> >
> >> >By the way, these remote meters actually save the
> >> >utility company money in the long run since they can
> >> >do away with meter readers and so forth. It sounds
> >> >like your utility company is using it as an excuse to
> >> >raise your rates.
> >> >
> >> >Glen, K9STH
> >> >
> >> >
> >> >--- RKofler at aol.com wrote:
> >> >
> >> >I read yesterday in a newspaper article that my local
> >> >electric utility company, Portland General Electric
> >> >Co., is raising the rates to pay for installing so
> >> >called "smart electric meters". The article did not go
> >> >into any technical detail, but it said these meters
> >> >would be able to be read remotely and eventually they
> >> >would have a situation where they could remotely
> >> >regulate some aspects of customers power usage during
> >> >peak hours. My concern is that these meters will be a
> >> >source of RF interference similar to BPL. Anybody
> >> >have experience with these "smart meters"?
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >Glen, K9STH
> >> >
> >> >Website: http://k9sth.com
> >> >
> >> >
> >> >
> >>
____________________________________________________________________________
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> >> ____
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> >> http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ
> >> >_______________________________________________
> >>
> >> _______________________________________________
> > _______________________________________________
> >
>
> _______________________________________________
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