I am not understanding what is happening with the scanner. I have the Brazoria Simulcast tower in Angleton and The Reed Rd tower programmed. Using and external antenna in the window, the signal strength meter is about the same during the day as it is at night. Scanner picks up the BCSO very well all day, but after dark totally silent except for conventional channels. I know there is traffic as my Motorola Apex handheld pick up BCSO Dispatch 1 day and night. It is almost like they are going to another control channel. I have all of the frequencies of the tower programmed. I can manually scan the tower control channel and hear the buzz so I know I have the signal, but I can't figure out the why. Any suggestions? I get a lot of the TxWarn Simulcast on Reed Rd during the day. Scratching my head on this one.