B&G H2000 Pilot *DISCONTINUED* - Manual (Page 50)

HB-0844-04
2-31
2.11.14 Depth
Menu Heading: DEPTH
Function Text: DEPTH
Update Rate: Once per second
Units: Metres, feet and fathoms
Notes
1. Audible, shallow/deep alarm available:
Shallow range 0-99.9m
Deep range unlimited
2. Analogue indicators available.
Depth is one of the most important functions on the boat, being an essential
navigational and safety tool. A datum adjustment allows you to move the
base point to give either depth under the keel or actual water depth (see
Para 2.6.2).
Depth sounder performance is dependent on many factors: transducer type
and installation, boat speed, electrical noise, sea state, sea bed conditions,
air and plankton in the water. But however good the equipment, there will
always be times when a reliable measurement of depth is not possible. In
these cases, such as following in the wake of another boat, the display
shows:
to indicate a signal problem.
The accuracy of the measurement is dependent on the velocity of sound and
the amount the sound penetrates the sea bottom. Changes in the velocity of
sound are not normally significant, however, errors up to one foot can result
from sound penetration into very soft mud.
2.11.15 Distance to Waypoint
Menu Heading: WAYPOINT
Function Text: DTW RMB or DTW GC
Update Rate: Provided by the position fixer
Units: Nautical miles
Note
Rhumb or Great Circle.