D REGION ABSORPTION PREDICTIONS

Global
5 MHz
10 MHz
15 MHz
20 MHz
25 MHz
30 MHz

NORTH POLAR

SOUTH POLAR

NORTH POLAR

SOUTH POLAR

NORTH POLAR

SOUTH POLAR

NORTH POLAR

SOUTH POLAR

NORTH POLAR

SOUTH POLAR

NORTH POLAR

SOUTH POLAR

NORTH POLAR

SOUTH POLAR