Thick white lines on map

hi, i dont have time rn to search for any duplicates cause im flying but can anyone tell me what does the thick white line on the map in the oceanic region represent? im on my PC cause im flying on my phone so i cant put any pics

My guess would be the Melbourne and Brisbane Centers if they’re online. Are they near Sydney?

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It show’s the active centre frequencies. Click on the space within the thick white lines to see which centre it is. :)

the lines are gone but yes sydney was within it

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the white lines are gone,only appr is active, not sure if center was online before when the lines were there

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You might of accidently pressed on the region as you can press it and the white lines will appear.


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