A technique for recording information received by a satellite digital audio radio receiver for playback encrypts content of a received SDAR channel using a local key that is unique to the SDAR receiver. Fresh potatoes are made into a mash and centrifuged to reduce the water content to about 70% by weight. The method further incorporates the electrically conductive, members as internal reinforcement in the cured, finished structure reducing or obviating the need for reinforcing steel. The display switching unit is configured to switch to the second screen relating to the specific one of the plurality of indoor units when the specific one of the plurality of indoor units displayed on the first screen is selected and an input of a prescribed button is accepted. Said catch recess comprises at least one catch hook and at least one abutment.