Can you give us more information such as the system ID? or where you heard it? or what you heard? or what other frequencies may be associated with the system?
I have to listen more I will update.
frequencies 410.0,410.525,408.6125,410.2,409.2125 and some talkgroup ID's the talkgroups found are digital
Talkgroups
48 57 to K unit, warehouse to laundry
16
32
112 sally port to warehouse, security gate, activate security gate
80 ETA to the wardens office
64
System ID
F008
I am in Chula Vista and it sounds like it is in San Diego possibly Metro Correctional Center.