A protective liner is described comprising a collar having a main collar portion, a first extension emanating from the main collar portion in a first direction, a second extension emanating from the main collar portion in a second direction opposite to the first direction. The transceiver module has multiple user or program configurable data rates, modulation, channelization and process gain in order to maximize the performance of radio data transmissions and to maximize interference immunity. The invention further relates to methods for producing a corn plant of the inbred line 2JK221 containing in its genetic material one or more transgenes and to the transgenic plants produced by that method.