NavCom StarUtil-3000 Rev.G - Manual (Page 135)

StarUtil 3000 User Guide – Rev G
8-133
lost, the last set of corrections received will continue to be used until this time limit is reached. At
this point, operation in dGPS mode will cease until a new set of corrections is received.
The max dGPS age limit is 1200 seconds. The default is 300 seconds for SBAS (WAAS,
EGNOS, MSAS, GAGAN) and RTCM type 1, 9, and 31. The default is 1200 seconds for RTG
(StarFire).

Input the [PRDGPSTIMEOUT] command via the Input Terminal window.
[PRDGPSMODE]RTCM1,ON
[PRDGPSMODE]WAASEGNOS,ON
[PRDGPSMODE]SFRTG,ON
[PRDGPSTIMEOUT]RTCM1,300
[PRDGPSTIMEOUT]WAASEGNOS,300
[PRDGPSTIMEOUT]SFRTG,1200
Figure 128 : Example Settings: [PRDGPSMODE] and [PRDGPSTIMEOUT]
[SOLIDEARTHTIDE]
This command is used to enable or disable the correction of solid earth tide. When solid earth
tide is on, its correction will be automatically applied to StarFire dual solution only
. It won’t be
applied to non-dif and WAAS mode solution due to the fact that the correction is small
compared to the solution accuracy in those modes. It won’t be applied to the solution in relative
positioning modes, including RTK, RTK Extend, and code DGPS.

Refer to Chapter 9/ Solid Earth Tide for more information.
RTK Base Control
The messages that follow configure the receiver as a base or rover, set up the base position,
set the site ID, etc. RTK Base Control is accomplished by several input parameters, which are
identified by the following command messages:
[RTKMODE]
This command is used to configure the receiver as a base or rover, including these parameters:
correction type, station id, port, [optional] dynamic/static, [optional] auto/manual and [optional]
X_on/X_off.
Examples: [RTKMODE] ROVER, CMR, 2,
Configures the receiver to be a rover which accepts dGPS corrections from site ID
2; the site ID range will be checked against the CMR correction type.
[RTKMODE] BaseRTCM1,,,3, Static,Manual
Configures the receiver to be a RTCM Type 1 base station, the station ID is default
1, with the output port set to 3, the base station is in static mode, and doesn’t allow
this command to automatically schedule/de-schedule messages.
[RTKMODE] ROVER,NCT,,,,,X_OFF
Configures the receiver to be a rover which accepts corrections from the StarFire
system rather than RTK-EXTEND.