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LF: PLC record keeping and experiments

To: <[email protected]>
Subject: LF: PLC record keeping and experiments
From: "J. Allen" <[email protected]>
Date: Sun, 3 Sep 2006 23:32:48 -0000
Delivered-to: [email protected]
References: <001501c6cf38$459a5be0$6501a8c0@eagles> <000d01c6cf92$72ec4720$8a7b7ad5@w4o8m9>
Reply-to: [email protected]
Sender: [email protected]
Jim and All,

Yes, it is good idea for me to track known leaking PLC signals. For now, I am concerned about how strong my signals are in their lines. Unfortunately, the fact that I am not causing interference is good enough for them... I would like to measure how strong my signals are in their system in comparison with their wanted PLC signals, and I believe that they will allow me to set up a receiver and computer in their substation to measure these things. I was the foreman of the maintenance electrical / instrumentation staff and had done hands on maintenance of the SCADA / PLC system, and because I am a licensed power systems electrician, they know I can work around the substation safely. I feel good that I can convince them to let me make measurements.

Believe me, Spectran and Argo will get a workout if they say yes as I expect. It will likely happen next spring, after thaw and before the summer load, when jeopardy to the Yukon isolated power grid will be the least. When I am there I can track all of the PLC system frequencies that might have changed since I retired and see how any outside signal compares with the signals within their transmission lines. I strongly believe, and this is supported by their senior PLC technician, that there will be no interference at all. I hope we can prove it.

73

J.




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