"Jeff" napisal w wiadomosci
...


But is the another phenomenon. The Luxembourg effect.
The dipole radiate the doubled frequency.
S*

That is NOT the Luxembourg Effect. The Luxembourg effect is/was cross
modulation of 2 stations due to non-linearities in the atmosphere.

It is an explanation.
The Luxembourg effect WAS the receiving of LW from Luxembourg mast on the MW
receivers tuned to the doubled frequency..
S*