Also, assuming you drive to the tower... see if you notice any new antennas that have been added. Specifically antennas that are pointed in the direction of your house. I work for a cell company and we lease out space on our towers to other companies. A new antenna could have been added to the tower that was not there before.Is it possible that a cell tower that has never caused a problem before might be causing a problem now? There are a few of them around me. In fact, there is one that is within a 1/4 mile and is situated between my home and the P25 tower. But like I said, this has never been an issue.
did you just update your scanner with the newest upgrades? Was this the cause?