Magnetic oscillations in an active region around a unipolar sunspot close to the limb

Simultaneous Doppler & Magnetic data taken at Kitt Peak in November 1995 have been analyzed to produce Power Spectra of the magnetic fluctuations. First, we consider possible signals caused by crosstalks bem een Doppler and Magnetic fields. We have adopted a zero order procedure for crosstalk removal, keeping in mind that this problem deserves careful attention. We hare used three different methods to produce the Power Spectrum: 1) simple magnetic fluctuations in different positions and sizes, 2) field lines inclination from reconstructed potential field close and above the photosphere, 3) variation of zero longitudinal component position as indication of photospheric field inclination. The Power Spectra of all these three cases will be shown and commented.