Unfortunately these plots don't allow for selected altitudes.
Although they show coverage over Dusseldorf, these may only be aircraft at high altitude.
You could try setting an altitude filter on the FR24 website and then compare with your Skyview map.
Although they show coverage over Dusseldorf, these may only be aircraft at high altitude.
You could try setting an altitude filter on the FR24 website and then compare with your Skyview map.
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