Rev 1.2 Nov.18
22
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5
5: Troubleshooting
Setup Troubleshooting
Note: If these troubleshooting steps do not solve the problem, please contact us or send the
module back to us for inspection.
Table 5-1: Troubleshooting Causes and Solutions
Problem
Possible Cause
Solution
Cannot find
GNSS device
USB was not set up properly
Check to see if the Development Kit was
set up properly, and make sure that the
device is receiving enough power
through the USB cable (green LED
should light up continuously).
No NMEA data or
GNSS signals
1.
USB was not set up properly.
2.
COM Port or Baud rate value is
incorrect.
1.
Check to see if the USB connector
to the PC or Development Kit is
connected properly.
2.
Double check to see if the proper
COM Port and Baud rate value are
selected.
Poor GNSS
Signal Reception
1.
If it is used inside a vehicle, the
anti-sunscreen film on the
windshield may interfere and
weaken the GNSS signal.
2.
The vehicle might be under some
area with a dense overhead canopy
such as a forest, buildings, tunnels,
etc.
For both problems, the user may apply
the external active antenna with the
Development Kit, and then place the
antenna on top of the car’s roof to
improve signal reception.
