If you are using this pattern:
Sector A – MAIO 0 6 12
Sector B – MAIO 2 8 14
Sector C – MAIO 4 10 16
Of course you need one frequency list. and the max configuration is 4/4/4. each sector has 4 TRU. You can also use this pattern:
Sector A – MAIO 0 2 4
Sector B – MAIO 6 8 10
Sector C – MAIO 12 14 16.