Need help for navigation

[Blackjack]

Take a look at the lettered wheel, the center of it represents the carrier, if you hear a certain letter you are in a certain sector RELATIVE to the carrier, so if you hear F or S the carrier is HDG 90 from YOU, I or T would mean HDG 270, maybe draw/print the wheel if you cant do it in your head while flying.

To understand this system , fly a large circle around the carrier while still near and take note how the letters change depending where you are relative to the carrier.