Seiwa Si-Tex Vector 3D GPS User Manual
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Appendix A: Troubleshooting
Table A-1 provides troubleshooting for common problems.
Table A-1: Troubleshooting
Symptom
Possible Solution
Receiver fails to power
•
Verify polarity of power leads
•
Check integrity of power cable connectors
•
Check power input voltage (6 to 36 VDC)
•
Check current restrictions imposed by power source
(minimum available should be > 1.0 A)
No data from
3D
•
Check receiver power status to ensure the receiver is
powered (an ammeter can be used for this)
•
Verify desired messages are activated (using SI-TEX
Toolkit or $JSHOW in any terminal program)
•
Ensure the baud rate of the
3D
matches that of the receiving
device
•
Check integrity and connectivity of power and data cable
connections
Random data from
3D
•
Verify the RTCM or binary messages are not being output
accidentally (send a $JSHOW command)
•
Ensure the baud rate of the
3D
matches that of the remote
device
•
Potentially, the volume of data requested to be output by the
3D
could be higher than the current baud rate supports (try
using 19200 as the baud rate for all devices or reduce the
amount of data being output)
No GPS lock
•
Verify the
3D
has a clear view of the sky
•
Verify the lock status of GPS satellites (this can be done with
SI-TEX Toolkit)