Mountain Brook PD & FD are on the Jeff Co Trunked System. The TGID's are as follows:
MBFD - Dispatch 25168; MBFD - Tac 25200, 25264, 25296
MBPD - Dispatch 25232: MBPD - Tac 25040, 25072, 2504.
I hear the PD and the FD regularly and quiet well on just the rubber duck that comes with the BC 396XT. I don't hear the Tac TGID's for either the PD or the FD very often, but occasionally one will be active for a brief period.