Antenna off-set, Figure 116: pvt tab – antenna offset, E figure 116 – NavCom StarUtil-3000 Rev.A User Manual

Page 98

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StarUtil-3000 User Guide – Rev A

The dGPS correction age is the number of seconds since the last corrections
arrived from a reference station. A few seconds is okay, but many seconds
indicate the fix is degrading over time, and becoming less and less accurate.

Age Limit: The maximum amount of time in seconds the received correction will be used in
case of an outage or drop in the reception of corrections.

dGPS Age Limit: The max dGPS age limit is 1200 seconds. The default is 300 seconds

for SBAS (WAAS, EGNOS, MSAS, GAGAN) and RTCM type 1 or 9. The default is 1200
seconds for RTG (StarFire). Refer to Chapter 8/

[PRDGPSTIMEOUT]

for more

information.

RTK Age Limit: The max RTK age limit is 60 seconds. The default is 15 seconds. If the

age is less than the rate of corrections received, the rover will not enter RTK mode.
Refer to Chapter 8/

[RTKTIMEOUT]

for more information.

The Receiver Status Bar provides a quick view of navigation status (see Figure 15).

Antenna Off-Set

Displays the appropriate bias adjustment values for the antenna model in use (optional).

Figure 116: PVT Tab – Antenna Offset

Phase Center Adjustment (H1): The offset in millimeters from the physical center of the
antenna (the element) to the Mechanical Reference Plane (MRP). The MRP is at the bottom
of the BSW antenna mount. The range limits are -128 to 127mm.

Radius of Antenna Body: The measurement in millimeters from the physical center of the
antenna to the edge of the antenna. For a pole, enter 0. For a tripod, the range limits are -
32768 to 32767mm.

Slant Range of Antenna Body: For a pole, the vertical measurement in millimeters from the
Mechanical Reference Plane (MRP) to the control point. For a tripod, the measurement in
millimeters from the edge of the antenna to the control point. The range limits are -32768 to
32767mm.

Height Adjustment: Indicates whether or not the antenna offset is applied.

Refer to the ANTENNAHEIGHT command in the Sapphire Technical Reference
Manual
for detailed information (see Related Documents in the fore-matter).

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