⑦Click “Continue” key,then
dHD, dVD and dSD
between prism A and prism
C will be shown.
●Procedure of MLM Method (A-B, B-C) is completely same as Method (A-B, A-C)
Method.
4.4.8 Line-height Measurement
This function is applied for measuring and determining a height of line (like electric wire)
above ground which is hard to reach.
See following image, L is point on the overhead line, G is projective point on the ground,
which is also difficult to set target, A and B are baseline which are set up in a certain
distance under line. After measuring horizontal distances from instrument to prisms A/B
and confirm the base line, VD between A and B, VD between L and G, HD between
instrument and L(G), offset distance from A to L(G) will be determined and shown.
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