NavCom StarUtil-3000 Rev.A - Manual (Page 58)

StarUtil-3000 User Guide – Rev A
6-56
Typical Commands And Parameters In User Profiles

Refer to the Sapphire Technical Reference Manual for the complete set of commands
and output streams utilized by the SF-3050 receiver (see Related Documents in the
fore-matter).

See also Chapter 8 RTK Setup for guidance to set up typical Base and Rover RTK
configurations.
[NAVELEVMASK]
This command sets the lowest elevation, in degrees, at which a receiver uses a satellite in the
navigation solution. Measured from the horizon to zenith, 0º to 90º.
[TRACKINGMODE]
This command is used to enable or disable the receiver’s tracking of various signals or
frequencies. When a GPS signal or frequency is enabled or disabled, it applies to all GPS
satellites broadcasting that signal.

Enabling a specific tracking mode is necessary to allow the receiver to acquire
and track the signal, but it is not sufficient. The receiver must also be licensed for
that tracking mode, and the signal must be available.

In areas where the receiver can track SBAS signals for regions other than where
the receiver is located (i.e., the receiver is in Malaysia tracking the Japanese
MSAS satellite), [TRACKINGMODE] allows the user to disable tracking the
SBAS satellite signal, which would otherwise cause positioning errors. In
addition, the user may disable the SBAS satellite signal via the Set Navigation
Mode window (see Figure 112).
[NAVMEASUSE]
This command is used to enable or disable the receiver’s use of various signals or frequencies
for navigation. When a GPS signal or frequency is enabled or disabled, it applies to all GPS
satellites broadcasting that signal.

Enabling a specific measurement is necessary to allow the receiver to use the
signal measurement, but it is not sufficient. The receiver must also be licensed
for that tracking mode, and the signal must be available.
L1 measurement usage is critical to the operation of the receiver. The disabling
of the L1 measurement (L1,OFF) places the receiver in an “undefined
configuration” which may produce unpredictable results.

In areas where the receiver can track SBAS signals for regions other than where
the receiver is located (i.e., the receiver is in Malaysia tracking the Japanese
MSAS satellite), [TRACKINGMODE] allows the user to disable tracking the
SBAS satellite signal, which would otherwise cause positioning errors. In
addition, the user may disable the SBAS satellite signal via the Set Navigation
Mode window (see Figure 112).