974-72007001/1.0 1007D Altimeter Operators Manual
Page 36 1007D Altimeter Altitude Detection Algorithm
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
6 TIPS FOR SUCCESSFUL ALTIMETRY
The 1007D altimeter should normally output consistent,
reliable altitude readings within the altimeter’s usable range
limits providing it has been properly installed, set-up, and
deployed. However, under certain conditions operational and
environmental factors can conspire to compromise
measurement reliability, resulting in erratic and/or frequent
over-range measurements. Reliability can therefore be
improved by first examining the application’s deployment
geometry and water conditions, then applying judicious
modifications to the deployment strategy, and/or to the
altimeter settings.
While a diagnosis of all possible deployment scenarios is
beyond the scope of this document, the following table
describes some of the more common causes and possible
solutions.
Cause
Possible Solution
The sea-bottom or target is
outside the altimeter's beam or
usable range.
Re-orient the altimeter towards the target. The
1007D Altimeter's usable range will depend on
its operating frequency. e.g. 300m at 200kHz.
The sea-bottom or target is
outside the minimum and
maximum range settings.
Adjust the minimum, maximum range settings
accordingly. Note that when operating with an
MS1000 PC, the maximum range will be the
lesser of the maximum range setting and the
display range setting.
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