Hemisphere GPS V104s, User Manual

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Appendix A: Troubleshooting
No DGPS position in
external RTCM mode • Verify the baud rate of the RTCM input port
matches the baud rate of the external source
• Verify the pin-out between the RTCM source and
the RTCM input port (transmit from the source
must go to receive of the RTCM input port and
grounds must be connected)
• Ensure corrections are being transmitted to the
correct port—using the $JDIFF,PORTB command on
Port A will cause the receiver to expect the
corrections to be input through Port B
Table A-1: Troubleshooting ( continued)
Symptom Possible Solution