Police frequencies

[EmmettX36]

Hey guys, I've been trying to get into listening into police radio recently and started looking at my local PD Frequencies, I've seen a lot of frequencies that are 5 numbers long and start with "T" and was just wondering what this type of frequency was called. Thanks for any help in advance!


Pic for reference.

 

[RaleighGuy]

Hey guys, I've been trying to get into listening into police radio recently and started looking at my local PD Frequencies, I've seen a lot of frequencies that are 5 numbers long and start with "T" and was just wondering what this type of frequency was called. Thanks for any help in advance!


Pic for reference.
View attachment 149124

They appear to be the talkgroups for a trunked system, not frequencies. Please provide us with what you are trying to listen to and we can give you a better answer.

Trunked systems have a control channel that moves the radio reception to a voice frequency and use talkgroups to separate the traffic by agency/departments.