10.4.3 User Manual Contents April 17, 2020
Firmware: 5.2.1 Page 73 of 142
Soundings are being
filtered out
• Adaptive gates are on Narrow and may need to be changed to a wider
setting
• May need to turn adaptive gates off.
Bottom detection quality is
degraded
• Check sonar head for marine biofouling. Clean barnacles off gently.
• Check that sonar cable connectors are clean, dry and properly seated.
Lower Gate is beyond
expected depth but there is
no bottom detected or
soundings look like a large
hump
• Try lowering the upper gate closer to the expected bottom.
Unable to get GAMS
Calibration to lock in
• Check antenna connections ensure that the antennas are plugged into
the correct primary/secondary sockets.
• Verify offset measurements
• Reset POS to factory defaults and start configuration over
• Area/Time may have bad GNSS. Relocate and/or wait for better
GNSS window
No GNSS Data in INS
System
• Check cables and ensure that connection is tight on the SIU and
antennas
• Make sure that the antennas provided with the kit are used. Other
antennas may cause issues
• Make sure antennas have clear view of the sky and not obstructed by
metallic objects, etc.
System status shows faults
• Check that cables are secure and tight
• Check for bent pins on the cable and SIU
• Low quality power supplies may cause this issue. Change the power
source to see if this fixes issue.
• Possible damaged sonar cable.
• Try grounding the SIU
NovAtel Connect will not
connect on port 3001
• Connect on a different port 3002 or 3003 and
apply FRESET and reload the batch file.
NovAtel data not read in
acquisition software or
acquisition software
crashes
• Check that there is not port interference. Connect and acquisition
software should not be connecting on the same port number.
INS window in NovAtel
connect displays no data or
crashes connect when
open
• Update video drivers on computer.
There is data in NORBIT
GUI and INS GUI, but data
is not coming into
acquisition software
• Ensure that both sets of firewalls (Private and Guest or public
networks) are turned off.
• Check to see if acquisition software has correct ports specified.
There is no timing in the
sonar. GUI timing line is
red
• Check pins on cable and in SIU. If a pin is bent VERY gently bend it
back. *This may result in damage so do so at own liability*
• If cable is good check that INS is outputting ZDA and PPS pulse
• Besides the onboard GNSS cards, users can obtain reliable NTP
timing from the QINSy time server. Another recommended source of
external, free third-party timing server is Meinberg. Another option is
to use the QINSy SNTP server, which does not require license. Open
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