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Date: | Mon, 25 Oct 2004 17:28:07 -0400 |
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Try doing a search of that band in SSB mode and see what you get. I
didn't hear any coms on that until I happened to be searching in FM, and
then moved to AM and then SSB after reading the messages here, and things
being so distorted I figured it either was encryption or S SB.
On Mon, 25 Oct 2004, Martin McCormick wrote:
> I have never heard any voice on 220-222 MHZ in North-Central
> Oklahoma, but I do hear continuous data transmissions that have
> occasional CW ID's. I think these are what they call SCADA systems.
> That stands for Supervisory, Control And Data Acquisition. Not
> terribly exciting to listen to. All of these signals are faint, here,
> but get a little louder when the band opens up.
>
> I have no idea where they are coming from except that they are
> not local. I am 50 miles North of Oklahoma City, about 70 Miles
> Southwest of Tulsa and about 120 miles south of Wichita.
>
> SCADA systems are used anywhere one has lots of remote
> monitoring such as oil pipe lines, electric power distribution
> systems, water treatment plants and so forth.
>
> Martin McCormick WB5AGZ Stillwater, OK
> OSU Information Technology Division Network Operations Group
>
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