There are not many conventional radio systems left at WDW.  Most operations are on a large MotoTRBO Linked Capacity Plus system with all groups encrypted. Disney currently uses XPR7550 and SL7550 UHF radios.

You can sill hear the mouse on the frequencies below and some MURS channels.

MK Parade Ops
RX: 461.30000   TX: 466.30000   PL: 162.2

MK Fireworks Ops
RX: 463.75000   TX: 468.75000   PL: 162.2