Commands
Appendix B
SPAN-SE User Manual Rev 1
91
B.4.2
ASSIGNLBAND
Set L-band satellite communication parameters
You must use this command to ensure that the receiver searches for a specified L-band satellite at a
specified frequency with a specified baud rate. The factory parameter default is ASSIGNLBAND
IDLE.
1. In addition to a NovAtel receiver with L-band capability, a subscription to the OmniSTAR, or
use of the free CDGPS, service is required. Contact NovAtel for details, see
2. The frequency assignment, field #3 below, can be made in kHz or Hz. For example:
ASSIGNLBAND OMNISTAR 1557855 1200
A value entered in Hz is rounded to the nearest 500 Hz.
3. OmniSTAR has changed channels (frequencies) on the AMSC Satellite that broadcasts
OmniSTAR corrections for North America. NovAtel receivers do not need a firmware
change. To change frequencies, connect your receiver and issue an ASSIGNLBAND
command. For example, the Western Beam frequency as stated on OmniSTAR’s website is
1557.8550 MHz. Input into the receiver: assignlband omnistar 1557855 1200.
4. The NAD83 (CSRS) datum is available to CDGPS users. The receiver automatically
transforms the CDGPS computed coordinates into WGS84 (the default datum of the receiver).
Alternatively, select any datum, including CSRS, for a specified coordinate system output.
Abbreviated ASCII Syntax:
Message ID: 729
ASSIGNLBAND mode freq baud
Factory Default:
ASSIGNLBAND IDLE
Abbreviated ASCII Example 1:
ASSIGNLBAND CDGPS 1547547 4800
Abbreviated ASCII Example 2:
ASSIGNLBAND IDLE
