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And they used these to control instantaneous frequency and phase? Or, justI don't think that using broadcast radio for real time mains gridPoint to point RF links have been in use in (mostly hard wired) grid
control is a good idea. It would be far too unreliable.
control SCADA (System Control And Data Acquisition) systems for at least
30 years, which is when a former employer did some work on a SCADA upgrade
project for the Egyptian Electrical Authority. A search on 'SCADA radio
link' will turn up several vendors.
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