B              - Report elevation
 C              - Report azimuth
 C2             - Report azimuth and elevation
 S              - Stop all rotation
 A              - Stop azimuth rotation
 E              - Stop elevation rotation
 L              - Rotate azimuth left (CCW)
 R              - Rotate azimuth right (CW)
 D              - Rotate elevation down
 U              - Rotate elevation up
 Mxxx           - Move to azimuth
 Wxxx yyy       - Move to azimuth xxxx and elevation yyy
 X1             - Change to azimuth rotation speed setting 1
 X2             - Change to azimuth rotation speed setting 2
 X3             - Change to azimuth rotation speed setting 3
 X4             - Change to azimuth rotation speed setting 4
 O              - Azimuth offset calibration
 F              - Azimuth full scale calibration
 O2             - Elevation offset calibration
 F2             - Elevation full scale calibration
 P36            - Switch to 360 degree mode
 P45            - Switch to 450 degree mode
 Z              - Toggle north / south centered mode
 H              - Help