User Guide
To Determine a Contact’s Bearing and Range:
• Drag the cursor to center it over a contact.
Seawolf:
■ The contact’s bearing and range appear directly below the active display in the Crsr Brg and
Crsr Rng fields. Range is given in yards.
688I(I):
■ The contact’s range and bearing display in the Range/Bearing Control area of the screen in the
Yds and Deg fields. Range is given in yards.
Akula:
■ The contact’s range and bearing display in the lower right of the screen in the Range (M) and
Bearing windows. Range is given in meters.
To track a contact with Active Sonar:
1.
Select a Range Scale. Longer Range Scales are appropriate for initial search. Once a contact is
detected, you can adjust the Range Scale of subsequent pings in order to get higher resolution
and accuracy. Selecting a new range halts continuous transmissions.You must click transmit
again to resume transmissions.
Seawolf:
• Click
RANGE SCALE
on the Active Sonar button matrix.
• In the panel that appears, click the button of the desired range.The numbers indicate thousands
of yards.
• Click
BACK
.
688(I):
• Click the number of the desired range on the Range Scale (KYDS) selector.The dial moves to the
indicated position and the selected range scale is implemented in the Active Display.The
numbers indicate thousands of yards.
Akula:
• Click the number of the desired range on the Range Scale (KM) selector.The dial moves to the
indicated position and the selected range scale is implemented in the Active Display.The
numbers indicate kilometers.
2. Select transmission mode:
Single or Continuous pings. If Single is selected, only one active sonar
ping is transmitted.When Continuous is chosen, active sonar pings are transmitted at a set
interval until the switch is reset to Single or you change the range scale.
Seawolf:
• Click
TRANSMIT TYPE
on the Active Sonar Button Matrix.
• In the panel that appears click
SINGLE
or
CONTINUOUS
as desired. Green indicates the option is
selected.
• Click
BACK
.
688(I):
• Click
SINGLE
or
CONTINUOUS
as desired in the Echo Ranging panel.
Akula:
• The Akula has separate buttons to transmit single or continuous pings.The button clicked in the
next step determines transmission mode.
3.
Transmit the signal.
85
Sub Com PC elec manual.qxd 7/25/01 4:59 PM Page 85