User Guide
Tracker Review:
Clicking this button cycles through the contacts that have trackers assigned in the
Broadband Station. Contact information displays in the DEMON Data Display in the Tracker, Cursor,
Bearing and SNR fields.
Frequency Scale:
Displays a panel for selecting the frequency scale in use in the DEMON Waterfall.
(20, 50 or 120)
Turns Per Knot:
Displays a panel for adjusting the Turns Per Knot setting for the selected contact.
(Increase T.P.K. and Decrease T.P.K.)
688(I) DEMON DISPLAY
Directions for using the DEMON display start on p. 78. Here the 688(I) DEMON station buttons are
described.
Available Trackers:
The trackers assigned in Broadband appear in these fields. If no trackers are
assigned in Broadband for the selected array, nothing appears in the tracker fields or the waterfall.
• Click blue button associated with the desired track to analyze that contact’s signal in the DEMON
waterfall.
DEMON Waterfall:
The signal from the selected contact with the Available Tracker button is broken
into its demodulated components.The selected frequency range scale is seen at the bottom.A
vertical line cursor appears above the waterfall.The cursor can be dragged
Sonar Station Selection Buttons:
Click the appropriate button to switch to that sonar station. Hold
your cursor over a button to display the name of the station reached by selecting that button.
Frequency Scale:
Selects the frequency scale to use in the waterfall. Click the desired number to
switch to that frequency scale.The dial moves to that position.
Cursor Frequency:
Indicates the frequency at the location of the vertical cursor in the waterfall
display.
Turns Per Knot:
Click the blue switch (
+
to increase or
–
to decrease the number) to set the known
turns per knot of the selected contact in the Turns Per Knot window. (You must classify the contact
in Narrowband, ESM,or Periscope then look up the USNI information on that class to determine the
correct turns per knot value to enter here.)
Speed:
The speed for the selected contact displays here when the cursor is placed on the line
farthest left in the waterfall and the accurate number of turns per knot for that ship class is
entered in the Turns Per Knot window.
81
Available Trackers
Demon Waterfall
Sonar Station Selection Buttons
Frequency Scale
Cursor Frequency
Turns Per Knot
Speed
Selected Array (depressed button)
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