B&G H2000 Pilot *DISCONTINUED* - Manual (Page 212)

h2000 User Manual
212 HB-0845-06
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The display locks down showing depths in the range 0 to
1.5m or display shows random deep depths. All of these
symptoms can be caused by external conditions so care and
additional tests should be performed before concluding the
fault lies with the depth sounder. There are two values
output by the depth sounder which can be of assistance in
diagnosing problems, these are receiver gain and noise
which can be found in the PARAMTR Menu on a FFD.
6.3.1 Yacht Stationary
Symptom: Display consistently shows:
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when well within the range of the sounder when the yacht is
stationary in the water. This is an indication that no
consistent signal is being received by the depth sounder.
Possible causes:
(a) The transducer is not connected.
(b) The transducer is not in its housing.
(c) If sounding through the hull there is not enough oil in the
housing or the hull material is not suitable to sound through
(wood, composite hulls with core material etc.).
(d) The transducer is receiving extra reflections off an adjacent
pontoon or jetty.
(e) The transducer is receiving interference from another B&G
system located in an adjacent yacht.