Figure 23: Multiple targets
4.5.3 STEP 3 Interrogating the Targets (Optional)
Once several targets have been pinpointed, each target can be
analysed by selecting Interrogation Mode and sweeping the detector
over the location of the suspected target. It is possible that different
tones will be emitted for different targets thereby providing useful
information to the operator.
* WARNING *
Detection Mode is always more sensitive than Interrogation or
Pinpoint modes. This means that, on occasion, when a very small
target is detected in Detection Mode, it is possible the target will
not be detected when selecting Interrogation or Pinpoint modes.
In this instance, the detector should remain in Detection Mode to
locate and mark the target position.
* WARNING *
The volume from a large target may mask that of a small target
if the small target is located very close to the large target. Two
similar targets located close to each other may result in only on
alarm.
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