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Yep, IO cameras had the unmistakable halo due to secondary emission of the target.
Did you know that 450MHz was first used for video remote pickup? This was when land mobile was on 30-50 Mhz.
As I understand it, it was easier to use than 2Ghz. But then it wasn't color either.
Two Ghz was the first STL band. There was a station here that used their old 2 Ghz equipment up to the year 1995 long after that band had gone ENG.
That created a problem for truck operators that ocassionally got on top of them.
Then they moved their STL to 6 Ghz like everybody else.
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