There is a lot of talk now about Milwaukee County & Waukesha County rebanding their radio systems withing the next 30 days.
Supposedly Milwaukee County is hoping for the 1st week of October, guess they still have to finish reprogramming Sheriff dept radios, but it sounds like all the Suburban Departments are reprogrammed already.
When they flip the switch to the new frequencies, some older scanners will no longer be able to track the systems, and will be pretty much just big paper weights to some people.
What really sucks about the new scanners is you will need software to
program them. You could do it by hand but it will take forever with all the menu steps.
If you want more info about rebanding,there is a lot of info here
Rebanding - The RadioReference Wiki