Looking through the systemwide frequencies Department of the Highway Patrol (CHP) Scanner Frequencies and Radio Frequency Reference, I don't understand what the information in the parentheses means. For example, under Tactical it shows 45.0200 Base - TAC 1 (Los Angeles Area - 103.5 PL), and further down it has 39.9200 Base - TAC 4 (Border Area). I don't understand this information. It confuses me as to whether I should be putting this frequency into my scanner. Should I put in the 45.0200 frequency with the PL tone for my area's division, and RR is telling me that if I want Los Angeles area traffic use 103.5 for the PL tone? If so why note the Border Area specification? Border division usually utilizes the 162.2 PL tone, so why note this? I'm not criticizing, I'm just a bit confused, and would appreciate some clarification as to how this works. Any ideas?