Hands Free Farm RANGER, Руководство пользователя

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USING RANGER
HANDSFREEFARM.COM
18
Support
Use the following sections to:
• Understand diagnostics information (below)
• Troubleshoot possible issue (page 19)
• Test antenna voltage or check DGPS position accuracy (page 20)
Diagnostics Menu
To display the Diagnostics menu, press
The following table provides helpful RANGER operating/
troubleshooting information.
Item Description
Correction Type Type of differential correction being used. RANGER supports two corrections types: SBAS
(default) and e-Dif. Use e-Dif when/where SBAS is unavailable.
Sats Number of GPS satellites currently visible in the sky (does not include correction satellites).
• Trk = number of satellites RANGER is tracking
• Use In Calc = number of tracked satellites used in the position calculation
STDEV Pseudo-estimate of the DGPS solution accuracy determined as the RMS value of the
positional residual errors. STDEV is valid only if six or more satellites are used in the solution
calculation. Typical values for SBAS correction are 0.15 m - 0.45 m (0.5 ft - 1.5 ft).
HDOP (Horizontal Dilution of Precision) Indicates the influence of the current GPS satellite
constellation geometry on the horizontal accuracy of the position solution. Lower values of
HDOP indicate better geometry. Typical valves are 0.8 - 2.0.
Diff Age Age (in seconds) of the DGPS corrections calculation. Optimal operating values are < 7 sec.
Bit Error Rate (Available only when SBAS is the correction type) Often abbreviated as BER, the bit error
rate is the relative strength of the correction satellites. Two numbers are shown separated by
a hyphen, where each number ranges from 0 to 500 with 0 being the best and 500 the worst.
If BER > 20 verify the antenna has a clear view of the sky to properly find and track
correction satellites.
GPS Software GPS software version.
App Software Application software version.
Serial Number RANGER console serial number.
Memory Amount of remaining memory (in hours). All passes are recorded in memory until erased at
the end of each field. To clear the memory, press STOP Guidance, press down arrow until
Erase Memory is selected, then press ENTER.
Diagnostics
Correction Type SBAS
Sats Trk=10, Use in Calc=09
STDEV 0.04 ft
HDOP 1.20
Diff Age 0001 secs
Bit Rate Error 0-0
GPS Software Ver. 6.8
App Software Ver. 1.0
Serial Number 300556
Memory 29.87 hr./98% Free
until
Diagnostics
is selected