common frequencies

hi I have a question on this scanner the bayshore and Middletown in New Jersey, EMS and fire when I’m listening to this, I do not hear this stuff on my actual police scanner yet I uploaded all the stuff from Radio for reference directly with the wire so anything frequency wise I can see numbers...

I want to punch in some frequencies for a ham bank I'm putting in my scanner. I understand that 446.000 is the national calling but are there any more that are commonly used for simplex communication? Particularly in the 70m band.