NavCom StarUtil Rev.G User Manual

Page 102

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StarUtil User Guide – Rev. G

7. Slow and Fast Nav SVs:

Number of SVs Tracked

Hex of SV IDs

IDs of SVs Tracked

Hex

Binary

IDs of SVs Tracked

0D441284 00001101010001000001001010000100

000100

00001101010001000001001010

0000

3

00

28

0

25

2300190000130

10

80000300

7-100

1

27

10

23

00

19

0000

13

010

8

8. Velocity: The vectors for satellite

9. Ground Speed and Track: The speed over ground and direction of travel (true, not

magnetic).

10. Max dGPS age: The maximum amount of time in seconds for all received corrections in the

current position record. Click the

velocity.

icon on the toolbar to set the Max dGPS age on the

Rover / Navigation & Tracking Setup window (see Figure 16). The displayed time must be
within the max dGPS age limit, which is 1200 seconds. The default max dGPS age limit is
300 seconds.

11. dGPS mode: The current dGPS navigation mode. The common modes are:

0: Non-differential

1: RTCM type 1 and 9 cod

timated uncertainty in the navigation solution. FOM

mate. (Refer to the Technical Reference Manual)

model in use (see

Item 4

e

3: WAAS code dual

11: RTG dual

20: NCT-RTK

‡

Refer to message 0xB1, W22 in the Technical Reference Manual for the
complete list of dGPS navigation modes.

12. FOM: The DOP Figure Of Merit is the es

is the same as the One sigma error esti

13. Adjust vertical (height): Indicates whether or not there is a bias adjustment value for the

antenna

above).

ether or not RTK Extend™ is

A class of measures of the magnitude of error in GPS position

ifferent components of the error: GDOP (Position and Time),

HDOP (Horizontal Position), VDOP (Vertical Position), and

14. RTK Extend Active: The value, Yes or No, indicates wh

active. If the value is Yes, the dGPS mode is 11: RTG Dual (see Item 11 above) when RTK
is not available. The FOM follows mode 11, but the positioning accuracy will stay at RTK
levels (approx. 1cm) during the RTK Extend™ period.

15. DOP: Dilution of Precision.

fixes due to the orientation of the GPS satellites with respect to the GPS receiver. There are
several DOPs to measure d
PDOP (Dimensional Position),
TDOP. The maximum PDOP value is 25.5.

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