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1) elevation factor
Elevation factor = R / (R + elevation)
R: the earth's average curvature radius
Elevation: Elevation above the mean sea level
2) scale factor
Scale factor: the measurement station scale factor
3) grid factor
Grid factor = elevation factor
×
scale factor
Distance calculations:
1) grid distance
HDg = HD
×
grid factor
HDg: grid distance
HD: distance on the ground the
2) distance on the ground the
HD = HDg/grid factor
Input the height at the height edit box , press "confirm" soft keys,
and you will get the grid factor as illustrations shown . Use
"ENT button" to save grid factor and exit, exceptions is: when
the calculated grid factor is less than 0.99 or greater than 1.01 ,it
indicates that one of the input between elevation and scale is
wrong, the system cannot receive the grid factor at this moment,
Grid scale
=0.999984
Altitude
:
100
m
Scale
:
1.000000
B.S
Clear
Enter