ProNav Norway – a
Company
page 48
Rev.2
10.02.2020
Troubleshooting
,
Continued
Appendix A
troubleshootin
g
, continued
Symptom
Possible Solution
No heading or incorrect
heading value
•
Check CSEP value is constant without
varying more than 1 cm (0.39 in)—larger
variations may indicate a high multipath
environment and require moving the
receiver location
•
Heading is from primary GNSS antenna to
secondary GNSS antenna, so the arrow on
the underside of the V200n is directed to
the bow side
•
Sending the $JATT,SEARCH command (in
the PocketMax Terminal window) forces
the V200n to acquire a new heading
solution (unless gyro is enabled)
•
Enable GYROAID to provide heading for up
to three minutes during GNSS signal loss
•
Enable TILTAID to reduce heading search
times
•
Monitor the number of satellites and SNR
values for both antennas within
PocketMax—at least four satellites should
have strong SNR values
•
The volume of data requested for output
by the V200n could be higher than the
current baud rate supports.
