NavCom StarUtil-3000 Rev.A - Manual (Page 93)

StarUtil-3000 User Guide – Rev A
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 [REFSTNPOS]
Typically, the Base User Profile includes a placeholder for the base position:
[REFSTNPOS]0,0,0.000000,0,0,0.000000,0.000000
The [REFSTNPOS] command + the known surveyed truth position is typically input via the Input
Terminal window. However, if the base is in a permanent or semi-permanent location, add the
base position to the user profile.
 [SELFSURVEY]
The self survey command performs a self survey operation by continuously averaging the
GNSS receiver’s position. When the user stops the self survey, the averaged position is applied
as the reference station position.

The time of survey varies. For best results, allow the receiver to run several
hours (minimum of 10 minutes). Errors in the base position will apply an equal
bias error in the rover position.

The Receiver Status Bar, Dashboard, and the PVT tab display the current position.
[RTKSTNID]
This command is used to configure an RTK rover to use corrections only from an RTK base
station with a specific ID number.
[RTKSTATUS1B]
This output stream contains a variety of information about the RTK navigation process. Refer to
the Sapphire Technical Reference Manual for the data items included in this message (see
Related Documents in the fore-matter).

The RTKSTATUS2B output stream is used only in consultation with
NavCom Customer Support . It contains diagnostic information.
[RTKTIMEOUT]
This command sets the timeout (age limit) in seconds for RTK carrier phase corrections applied
during RTK navigation mode. When communication with the RTK base station is lost, the last
set of carrier phase corrections received will continue to be used until this time limit is reached.
[RTKTIMEOUT]15.0 is the default. The max RTK age limit is 60 seconds. If the age is less than
the rate of corrections received, the rover will not enter RTK mode.
[RTKFLOATTIMEOUT]
This command sets the timeout for RTK Float. [RTKFLOATTIMEOUT]300 is the default.
[RTKMULTIPATH]
This command sets the multipath environment the RTK rover receiver experiences: OPENSKY,
SURVEYENVIRON, HIGHMULTIPATH, and URBANCANYON.