The lid for the dip switches should have a chart on it that shows which positions for 2-6, A-1 thru A-5, 14 thru 22, 7-13, etc. Each position works for that freq range, then just make the numbers on the front match the output channel you want.
very seldom is the right way the easy way.
This is CABL.com posting #188785. Tiny Link: cabl.co/mXg5