Zebra-Tech Turtle, Техническое руководство

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Turtle Dive Logger Technical Manual
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The table below provides descriptions of the columns in the data file.
Column: Description:
1 Dive log/surface log (1 = Surface log & 2= dive log)
2 Turtle Dive Logger serial number
3 UTC Time (H:M:S)
4 UTC Date (D/M/Y)
5 Latitude (Degrees. Decimal degrees)
6 Longitude (Degrees. Decimal degrees)
7 Fix indicator (1 = valid, 0 = invalid)
8 HDop (see below)
9 Depth (meters)
10 Temperature (degrees C)
11 Battery voltage
HDop Value Rating Description
<1 Ideal
This is the highest possible confidence level to be used for
applications demanding the highest possible precision at all times.
1-2 Excellent At this confidence level, positional measurements are
considered accurate enough to meet all but the most sensitive
applications.
2-5 Good Represents a level that marks the minimum appropriate for
making a business decision. Positional measurements could be used
to make reliable in-route navigation suggestions to the user.
5-10 Moderate Positional measurements could be used for calculations, but
the fix quality could still be improved. A more open view of the sky
is recommended.
10-20 Fair Represents a low confidence level. Positional measurements
should be discarded or used only to indicate a very rough estimate
of the current location.
>20 Poor At this level, measurements are inaccurate by as much as 300
meters with a 6 meter accurate device (50 DOP x 6 meters) and
should be discarded.