Boat Swim Platforms CG Boat Documentation - Hailing Port Can It Be Down Lower Than Boat Name As Long As Both On Stearn?

CG Boat Documentation - Hailing Port can it be down lower than boat name as long as both on stearn? - boat swim platforms

Example: Name of the boat amidships.
Port on the underside of the platform, swimming behind the boat.
If the cards are 4 "tall.
Everything that is what I can find that they need to be together.
The name would be about 2 1 / 2 feet above the radio connection is allowed, provided they be seen at once if you) Stearn (rear view of the boat.