I agree with John...Most or some around the Tampa/Plant City/St Petersburg have PTT/On Demand talk groups enabled to where you have to key up the repeater to hear any voice traffic/conversations around the area/state or etc.Most of the DMR talk groups on these repeaters are PTT (on-demand) talk groups. Only one or two of the available talk groups are full-time.
There is also a UHF DMR repeater in St. Petersburg. Same deal as above, but definitely has some traffic on it.
John AC4JK