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C Commands Summary
90 MiLLennium GPSCard SW Version 4.503/4.52 Command Descriptions Manual Rev 2
CSMOOTH
This command sets the amount of carrier smoothing to be performed on the pseudorange measurements carrier. An
input value of 100 corresponds to approximately 100 seconds of smoothing. Upon issuing the command, the
locktime for all tracking satellites is reset to zero. From this point each pseudorange smoothing filter is restarted.
The user must wait for at least the length of smoothing time for the new smoothing constant to take full effect. 20
seconds is the default smoothing constant used in the GPSCard. The optimum setting for this command is
dependent on the user’s application and thus cannot be specified.
Syntax:
Example:
csmooth 500
NOTE: The CSMOOTH command should only be used by advanced users of GPS.
It may not be suitable for every GPS application. When using CSMOOTH in a differential mode, the
same setting should be used at both the reference and remote station. The shorter the carrier smoothing
the more noise there will be. If you are at all unsure please call NovAtel Customer Service Department,
see the Software Support section at the start of this manual.
CSMOOTH L1 time [L2 time]
Syntax Range Value Description Default
CSMOOTH - Command
L1 time 2 to 1000 L1 carrier smoothing time constant.
Value in seconds
20
[L2 time] 2 to 1000 L2 carrier smoothing time constant.
Value in seconds