Hi Everyone, I am kind o new to the scanning world but I am in the process of becoming a firefighter and would love to use my scanner to its full ability but I do not know how to program it. It is a RadioShack 20-525 Dual Trunking scanner. I would like to program the Davis, CA polic/fire/EMS frequencies into the scanner so I can have it looking for the frequencies being used but I do not know where to start. If anyone has time please walk me through it? After i get one done im sure i will be able to do the rest. Here is the link to the info Yolo County, California (CA) Scanner Frequencies and Radio Frequency Reference and that has everything I want on it. Thank you so much in advance for your help!! Take care!