User Guide

Overlay Bearing: Displays the bearing at the exact center to the Selection Overlay.
Track ID: Clicking on a frequency line that has been assigned a tracker displays the alphanumeric
designation for that contact in this window.
Selection Overlay
The Selection Overlay acts as a cursor for selecting and designating contacts and for displaying the
sound signature profiles of ships or weapons with similar signatures.
An imaginary line through the exact center of the wedge is the precise bearing indicator and its
position on the circular display is seen in the Overlay Bearing window.
The Selection Overlay is divided into thee parts or wedges.The center wedge is used to select
contacts. Position the center section over a contact to select it.
• Click the overlay and drag it to the desired location.
■ Clicking on any point on the circular display centers the selection indicator at that location.
When a contact is selected, the outer wedges display the sound signature for whatever ship class
or weapon is selected in the Classification window.When no contact is selected nothing appears in
the outer wedges.
To designate a contact and assign a tracker:
1. Select a contact by dragging the wedge shaped selection overlay and positioning the center
section over the contact.To move the overlay, click the edge of the overlay and drag it to the
desired location.
2. Place your cursor on one of the selected contact’s frequency lines inside the wedge and click to
select it. Click
MARK .You may have to click several times if the signal is weak.A tracker letter
appears near the frequency line and the contact’s alphanumeric track ID appears in the Track ID
window when the frequency line is selected.
To classify a contact:
When a contact is selected, its sound signature displays in the center wedge of the Selection
overlay and the sound signature profile of the ship class named in the Classification window
appears in the outer wedges of the selection overlay.
1. Compare the frequency lines of the selected contact in the center to that of the profile in the
outer wedges.
2. Adjust the Frequency Scale Dial to see distinct ranges more clearly.
76
Narrowband Contacts
Signature of selected class
Tracker
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