Аннотация:We discuss the results of Mössbauer study of the iron-doped manganites AMn7O12 (A = Ca, Sr, Cd, Pb) in temperature range of orbital ordering (TOO) where the structural modulation is observed. In accordance with modulations of quadrupole splittings Δ driven by structural modulations we determined quadrupole splittings profiles versus temperature and its distributions at T < TOO.