User Guide

• Ensure that the cursor is centered on the most recent return from the contact and click MARK .If
you are in single ping mode it makes more sense to use the Mark function rather than the
Designate Target feature so as not to waste a tracker.
Range Scale: Displays options for setting the maximum range in the Active Display. Numbers are in
thousands of yards (5, 10,20, 40,80).
Transmit Type: Displays options for selecting the type of transmission you want to send: Single ping
or continuous ping. Continuous transmissions continue to ping until you stop it.This selects only
the type of transmission. It does not transmit the signal.
Transmit: Click to transmit a signal of the type selected with the Transmit Type Button.The type of
transmission that is selected displays in the Transmit field in the Active Sonar Data Display.To stop
a continuous ping, click Transmit, again.
SEAWOLF: HIGH FREQUENCY ACTIVE SONAR
Fewer functions are available in High Frequency mode. Marking contacts in this mode places
markers on the Nav map but does not assign a Contact ID or send information to TMA. Seawolf can
detect contacts up to 5000 yards with this sensor. High frequency returns provides an outline of ice
keels making it a valuable tool for under ice operations as well as navigating mine fields.
To Activate HF Sonar:
• Click FREQUENCY in the Active Sonar button matrix. The frequency options appear in the matrix.
• Click
HIGH then BACK .The HF button matrix appears.
NOTE: Continuous pings are transmitted as soon as High is selected and contacts appear in the
Active Display immediately.You must click
BACK to access the HFAS button matrix and the
MARK button
The High Frequency Button Matrix
This button matrix contains only two buttons.
Frequency: Displays options for selecting either Medium or High frequency sonar transmissions.
Mark: Marks all contacts detected by the sensor and places a marker on the Nav map for each
one.
Marking Contacts with HF Sonar
• Click MARK once.A marker is placed on the Nav map for each contact detected by the sensor
NOTE: It is not necessary to select contacts with the Bearing/Range cursor to mark them or to click
more than once.
To return to Medium Frequency Active Sonar view:
1. Click FREQUENCY on the button matrix to display the Frequency options.
2. Click MEDIUM then BACK
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