Unwanted Traffic Slipping Through?

[gtaman]

Admins feel free to move where needed.

I recently been having this issue with my uniden bct15 while on the franklin county public safety 800mjz trunked system. This only happens once every hour but police traffic is slipping through the other talk groups. This only happens late at night also. Ill put my scanner on the fire group with all other groups locked out and randomly ill hear like a police tac channel on battalion 1 fireground. I don't know how it is possibly slipping through this just randomly started happening. It's quite interesting when it's quiet and you hear a police dispatching saying she's on tac 1 a and it says battalion 1 fire ground. I double checked programming and nothing has changed. Is the scanner confused? i dont kniw how its happening
Anyone else have this issue?

Thanks

[scannerfreak]

Please do not cross post threads. One forum is sufficient.

Programming Issue?