Hi, I am very new to scanning, I have a pro 106 from radio shack. I have not been able to receive any "calls" on my scanner I assume they have changed the system. Can this scanner be programmed to receive the new frequencies ? Could anyone tell me if anything was changed in Harford County or do I have a problem with the scanner itself ? If anyone in the Harford County area could help I would greatly appreciate it . THANK YOU ! Jim