We measured cw-NMR of superfluid He-3-A in cylindrical cells with diameters of 0.1 and 0.2 mm under rotation. A new satellite signal was observed only in the 0.2 mm cell when the liquid was cooled through T-c under rotation but was not observed when it was cooled without rotation. The angular velocity of rotation is too low to create one vortex line in the cylinder and thus the satellite signal may be due to the spin wave of the Mermin-Ho texture. (C) 2000 Elsevier Science B.V. All rights reserved.