nThere is no fixed support in the Modal analysis. There are only the three Remote Displacements I described above.nF is the frequency in Hz, or cycles/second. A cycle is a sine wave. The period of the sine wave is T = 1/F.nA sine wave goes up then down and crosses zero at T/2 and has a maximum value at T/4.nI made a mistake above, I should have said the time was 1/4F not 4/F. You understand now I think.n