  It is shown that the hidden ordered (HO) state in heavy fermionic metal
URu2Si2 is either nonconventional charge density wave (CDW) or
antiferroelectric (AFE) commensurate ordering. Similar to antiferromagnetic
(AF) order an antiferroelectric order creates momentum dependence of conducting
electrons $g$-factor. This even modest anisotropy along with the anisotropy of
heavy cyclotron mass can produce multiple effect of so called zero-spin
splitting in the amplitude of the de Haas - van Alphen and the Shubnikov - de
Haas signals as function of direction of magnetic field.
