CSI Wireless Vector Sensor

Programming Manual 46
This message has the following layout:
$JASC,RTCM,r<CR><LF>
Note - Turning RTCM on or off using this command provides the
same functionality as setting the RTCM menu item to on or off in
the NMEA On/Off menu of the DGPS MAX.
The receiver will reply with the following response:
$>