Spectra Precision FOCUS 30 User Guide 79
6 Instrument Technology
of the area being sampled, not to a degradation of the measurement precision, see
Figure 6-2.
Fig. 6-2 Beam divergence
A larger measuring area at longer range is generally better because it enables smaller
objects, such as power lines and antennas, to be detected and accurately measured.
With a smaller measuring area, these small objects can be easily missed. A smaller
measuring area has advantages when measuring tight corners and vertices at close
range. When observing measurements to a tight corner, the distance meter beam
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