User manual

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Troubleshooting | HS70 User Manual
Troubleshooting
Sympton Possible Solution
Receiver fails to
power
• Verify polarity of power leads
• Check integrity of power cable connectors
• Check power input voltage (6 to 36 VDC)
• Check current restrictions imposed by power source (minimum
available should be > 1.0 A)
No data from HS70 • Check receiver power status to ensure the receiver is powered
(an ammeter can be used for this)
• Ensure the baud rate (4800) of the HS70 matches that of the
receiving device
• Check integrity and connectivity of power and data cable
connections
Random data from
HS70
• Ensure the baud rate of the HS70 matches that of the remote
device
No GPS lock • Verify the HS70 has a clear view of the sky
• Verify the lock status of GPS satellites in the Simrad compatible
head unit (refer separate documentation)
No SBAS lock • Verify the HS70 has a clear view of the sky
Note: SBAS lock is only possible if you are in an appropriate SBAS
region; currently, there is limited SBAS availability in the southern
hemisphere.
No heading or
incorrect heading
value
• Heading is from primary GPS antenna to secondary GPS
antenna, so the arrow on the underside of the HS70 should be
directed to the bow side
• Monitor the number of satellites and SNR values for both
antennas in the Simrad head unit — at least four satellites
should have strong SNR values
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