The invention relates to a method for encoding a number of feedback information messages in a mobile radio communications system using carrier aggregation, the method comprising: encoding the number of feedback information messages by a set of codewords, where each feedback information message can be of at least a first kind or a second kind. The first insulator includes a resin and filler dispersed in the resin. The tops of the pulse sections each having a predefinable constant gradient. The images may be captured, transmitted and displayed in real-time for telepresence or stored for time-shifted display. A compliant member is disposed between the plug member and the cage member.