User Guide

• Click the arrow buttons to pan the view.(The keyboard arrow keys can also be used.)
• Move the ruler to the desired location, click
CENTER ON RULER then Click the zoom buttons to
better adjust your view. If you lose sight of the ruler, zoom all the way out or select
CENTER ON
RULER
.
• Click the ruler handle or the single tick mark if the handle is not present and drag the ruler to the
desired location.
• Click
CENTER ON RULER to place the ruler in the center of the TMA Board then zoom in or out as
desired to adjust the view.
NOTE: The ruler handle is only visible when the ruler contains more than one tick mark or speed is
set to greater than 1 knot (kt) in the Speed field in the trial solution area.You must zoom way
in on the ruler to see it at that speed.You can also set the speed to 10 kts or more
temporarily.This will expand the ruler and reveal the handle.
3. Adjust the ruler position to estimate the contact solution.
■ If this is the first time that TMA has been performed on the selected contact,the ruler will
represent the default solution of a range of 10,000 yards, with a closing course and a speed of
10 kts.These values appear in the trial solution fields directly below the TMA board.
4. Enter any known data in the trial solution data fields.
If you have additional data on the contact’s range, or course,for example from an intelligence
message, enter it in the appropriate solution field. If you have determined the contact’s speed
using DEMON, enter that speed in the solution field. See Sonar/DEMON Station on p. xxx.
• Click the digits to cycle through the values.
■ If you are sure about one aspect of the solution (e.g. range) enter that value directly into the
Range field then lock the field.That keeps you from dragging the ruler to a different range.
• To lock a field click the button associated with the field.
■ Seawolf: Lock buttons are located above the label text for the trial solution fields. Label text is
green when a field is locked.
■ 688(I): Lock buttons are located to the right of the label text for the Solution Input fields. Buttons
are orange and light up when the field is locked
■ Akula: Lock buttons are located to the right of each trial solution field.They are red and light up
when the field is locked.
5. Adjust the ruler to fit the bearing lines.
Adjust the ruler on the display until the tick marks align well with the contact bearing lines.
• Click the handle in the middle of the ruler to drag the entire ruler.
• Click and drag on either end of the ruler to move just that end or to adjust the length of the ruler.
6. Enter solution.
103
Trial Solution fields
Lock buttons
Enter Solution
Sub Com PC elec manual.qxd 7/25/01 4:59 PM Page 103