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4.
Another way to improve reliability of measurement is
to use gating mechanism. If gating is active
reflections from all objects closer than the gating
distance will be ignored. This is especially effective
when ranging in unfavourable atmospheric
conditions, that is, in the rain, fog, haze or in the
bright sun. Gating provides better results than the
“last” target selection, but it requires preliminary
rough distance estimation to cut off all objects closer
than the chosen one.
Note:
Gating setting is remembered by the System until
altered. Therefore, if you forget to turn the gating off, the
next time you start measuring it can ignore the desired
object, if it is closer than the gating distance. The unit will
display four dashes instead of the measurement results.
“Over 100 meters” display indicator shows active gating.