A mower includes a zero turn radius traction unit carrying a front mounted cutting deck. The phase-change memory device includes a semiconductor substrate in which a word line is arranged, a diode line disposed over the word line and extending parallel to the word line, a phase-change line pattern disposed over the diode line, and a projection disposed between the diode line and the phase-change line pattern and protruding from the diode line. Responsive to this identification, a query cluster is generated. If such a Supported Maximum Bitrate does not exist, the Offered Bitrate is selected to be a highest available Supported Maximum Bitrate that is not higher than the Maximum Bitrate Limit.