P25 Skip Question

Back when Houston PD was very active, I used to hear them from time to time in Waco, Texas using analog UHF. Although the signal would fade a bit, it was still possible to follow the action.



Today, I was reading a post that prompted me to ask myself, "how does skip affect P25 transmissions, particularly on VHF trunking or VHF conventional?



I would appreciate some feedback on this.