A method of magnetic transfer allows transfer of magnetic signals independently to two recording layers included in a magnetic recording medium. In the first case, the material behaves with the shape memory effect and in the second case the behavior is superelastic. 768 kHz, a selection circuit configured to select one of a pause state where the frequency in the MHz band is not output and an active state where the frequency in the MHz band is output. Each board also has a downwardly extending double-walled lip. The wireless communication system allocates resources to a communication link using a combination of beam sets and substantially orthogonal resources in order to provide improved coverage without a corresponding increase in interference.