Operator`s manual

3500 VRC Operator’s Manual
111
V5.00.26
October
2006
Revision M
Part No. : AM
-
3500V/M/SIMV5
Updated : 12/10/2006
Diagnostics
The diagnostic screen displays statistics and outputs related to the data received from all system
sensors.
Display Diagnostic Screen
1. Press the “CAL” key.
2. Highlight “DIAGNOSE” and press “CAL”.
3. The diagnostic screen shown below will appear.
GPS data received statistics, are displayed at the bottom of the diagnostic screen. A count of the
data strings received from the GPS are displayed, as well as the HDOP value, number of satellites
and GPS frequency. See below.
The counters increment every time a new string is received.
Example
If a new GGA string is received every second, then the counter will increment every second. The
counter will count up from 0 to 255 then start from 0 again.
HDOP Value
The HDOP value is displayed 10 times larger than its actual value. The GPS frequency is displayed in
Hz. Either 1, 2, 5 or 10Hz will be displayed.
GPS Diagnostics
This screen can be used to determine what strings are being output from the GPS and how often.
For guidance, auto control (application map) and data logging the GPS must output the GGA and
either the RMC or VTG strings.
For guidance the recommended GPS frequency is 5 Hz.