hat
Depi frekans lan nan vag nan elektwomayetik se pi ba anpil pase frekans nan vag limyè, vag pwopagasyon efikas fikse nan distans la soti nan Re Rmax gade toutotou limit la nan% 70, sa vle di, Re = 0.7Rmax.
eng
Since the frequency of the electromagnetic wave is much lower than the frequency of light waves, wave propagation effective stare into the distance from Re Rmax look around the limit of 70%, ie, Re = 0.7Rmax.