Ok so im trying to set up my lights on my pnp F 16. It calls for a three position switch. Off, nav lights, nav lights and landing lights

So i have my switch SA its a three position. My question is were do i go to make
position 1 -100% lights off
Position 2 + 50% nav lights on
position 3 +100% nav ligts and landing lights

Thanks
david

The switch will be -100, 0, +100. If it is the other way around, just reverse it in servo setup.
Did you really mean +50% for the switch at centre? The mid point between -100 and +100 is 0.
Plug a servo into the rx and confirm that it does move as you expect, and that your tx is not interpreting the 3pos switch as a 2pos

Position 1 and 3 are the servo endpoints
position 2 (middle) is controller by the subtrim
all in servo setups
recomend to setup first the middle position, then adjust the endpoints.