A residual stress in a PZT type ferroelectric film 12 formed on a substrate body 11 by a sol-gel process is \u221214 MPa to \u221231 MPa, and the ferroelectric film 12 is crystal oriented in a plane. The unique use of diagonal line ridges placed in the corners of the aperture of the diagonal dual-polarized broadband horn antenna. Communications received are converted to packetized data signals which are routed for sorting at a transformer service unit for electrical power-line transfer with the output of a local transformer. A system for carrying out the method is also disclosed. Image quality adjustment is performed with an identical adjustment condition for each of the extracted frames to obtain adjusted still image data. Its novelty consists of the following unique combination of features that are desirable in a new interstock when growing cherries:.