#   open rand beschrijving :
      B : OPEN  6, BTYPE='qh      ', BDEF='Fourier ', REFL=   0.0
      B : OPEN  1, BTYPE='wl      ', BDEF='Fourier ', REFL=   0.0
      B : OPEN  2, BTYPE='wl      ', BDEF='Fourier ', REFL=   0.0
      B : OPEN  3, BTYPE='wl      ', BDEF='Fourier ', REFL=   0.0
      B : OPEN  4, BTYPE='wl      ', BDEF='Fourier ', REFL=   0.0
      B : OPEN  5, BTYPE='wl      ', BDEF='Fourier ', REFL=   0.0