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G7 Installation & Operation
SMA
DC Jack
RJ45
Troubleshooting
Use this chapter to identify and solve common problems that may occur during the use of
the receiver (See Table 18). Please read this section before you contact ComNav Technical
Support. This section describes some possible receiver issues, possible causes, and how
to solve them.
Issue
The receiver does
not turn on.
Document PN 29010107 V1r1
PPS signal port as SMA format
Pulse wide: about 8 microseconds
Electrical Level: 3.3 V TTL
Power supply port
12V DC recommended, and 9~36V DC support
Network connect port, used for GNSS board built-in
webpage login
Table 17 – G7 Data communication.
Possible
Reason
Power is too
Check the charge on the external
low.
battery and, if applicable, check the
fuse.
External
Check that the power connector is
power is not
properly
seated correctly and that the cable is
connected.
secured to the receiver.
Check for broken or bent pins in the
connector.
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Solution
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