There has been quite a bit of testing.
472.5875 - PL 167.9
472.575 - PL 192.8 - Referred to as South Police
There has also been testing on a few frequencies in the 490 range.
There are changes to South and East zones in the near future and these are likely part of that.
I have heard 460.400 with PL 114.8 keyed up as well.
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