WV82-
Here's what I use in Hampshire--should work for Mineral, I think:
Helo 1 - 468.00 / 151.4
Helo 2 - 468.025 / 151.4
EMS TAC 28 - 155.34
MD Trooper 5 - 47.66 (not sure if that's still good, though)
Don't forget this one--can be interesting if there's more than one ship in the air:
Helo-to-helo - 123.025
Hope that helps,