Phil D
Do you let the ATSU giving you the radar service know that you are changing frequency to ask for zone transit from an airfield, or do you just flick over and ask them and then flick back again?
And similarly, when given permission to enter the ATZ, do you tell the ATZ ATSU that you're changing back to your radar provider??
And then (!!) - do you swap back again to call overhead the airfield???
And then (!!!) - do you need to tell the airfield when you're leaving their zone????
