VEMCO – VR100 Manual 28 May 2018 70
2. NORM: This is the medium level. It rejects some noise but also allows some noise to be mistaken as
detections (false-detections). This level will correctly accept more detections than the “Near” setting
but will still mistake some genuine signal as background noise. In the sketch below, everything over
the “Norm” line is considered a genuine detection. In this case, four signals were accepted – the first
three were genuine detections and the last was noise. Use the “Norm” level for general use.
3. FAR: This level has more false detections. All genuine detections will be accepted, but a larger
number of false-detections will also be accepted. In the sketch below, everything over the “Far” line
is considered a genuine detection. In the sample below, eight detections were reported but only five
of them were genuine detections. The other three detections were actually noise (false-detections).
Use the “Far” level when the tags are far from the hydrophone and the signals received from the tags
are weak.
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