User Guide
Narrowband Waterfall Display:
The Narrowband Waterfall Display separates a signal from the
bearing selected in the Narrowband Search Display into discrete frequencies.The horizontal axis
represents the range of frequencies and the vertical axis represents time in seconds.The frequency
range is adjustable using the frequency scale as described below.Vertical lines represent specific
frequencies in the sound signal emitted by the selected contact.Together all of the frequency lines
represent that contact’s sonar signature.
NOTE:
Straight lines indicate a consistent signal. Curved or wavy vertical lines represent distortions
or variations in the signal.
Ship Classification Window:
This window displays the sound signature of the class or weapon
named in the Profile Selector. Click
DISPLAY SIGNATURE
in the Button Matrix to access the Profile
Selection Panel and the Profile Selector. See Display Signature in the Narrowband Button Matrix
section below.
Seawolf Narrowband Data Display
Frequency Scale:
Displays the frequency range currently viewed in the Narrowband Waterfall
Display and the Ship Classification Window.This range is selected using the Frequency Scale
button in the Narrowband Button Matrix.
Cursor Frequency:
Displays the precise frequency of the signal selected in the Narrowband
Waterfall Display.
• To select a signal, click the desired line in the Narrowband Waterfall display.The cursor moves to
that location in the Horizontal Frequency Display and the frequency at the cursor location
displays in this field.
Sensor:
Displays the name of the selected array. Use the Select Array button in the Button Matrix to
select a different sensor.
Cursor Bearing:
Displays the location of the cursor on the bearing indicator at the top of the
Narrowband Search Window.
Tracker:
Displays the assigned tracker letter of the selected contact when the Tracker Review
button is clicked on the Button Matrix.
Contact:
Displays the alphanumeric ID (contact ID) of the contact selected when the Tracker Review
button is clicked on the button Matrix.
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Narrowband Search Display
Contact
Cursor
Narrowband Waterfall Display
Specific Frequencies
Tracker
Ship Classification Window
Sound Signature of ship selected
in the Profile Selection Panel
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