Hello Uwe
the Schumann resonance is determined by
1. radius of the earth
2. speed of light
3. density of the ionosphere
As 1. and 2. can be considered constant a raise of the Schumann resonance
(by 300% !!!) must be caused by a spectacular increase
of the ionosphere density. Would be good news for
the 50MHz fans who are waiting for some
decent F2 propagation since 2003 ;-)
But I'm afraid that site you refer
to contains pseudoscientific nonsense.
73, Rik ON7YD - OR7T
Can You watch it ?
Hoax or true ?
Uwe, DK1KQ