Sorry I have been monitoring/scanning since 1959, and I am baffled by the new systems. Looking in VA STARS, It shows custom settings for the PRO96 and 2096. Problem I have is nowhere do I see the CH Lo CH Hi in win 96, also what is the base frequency for say Hogback Mt. which has control freq. of 161.8875? does the base freq mean control freq? or what does it mean?