User Guide

Radio Message Display: All radio messages display in this scrolling window.Scroll to the bottom to
see the newest message.
Floating Wire: Click the right-facing double arrow to stream the floating wire. Click the left-facing
double arrows to retrieve the floating wire. Click the square (Stop) button to stop the winch.The
portion of the wire currently deployed is depicted in the progress bar.
688(I): RADIO/ESM STATION
688(I)’s Radio/ESM Station is described below.The use of these features is described in Radio/ESM
Station/Receiving Radio Messages starting on p. 131.
Radio Message Display: All radio messages display in this scrolling window.Scroll to the bottom to
see the newest message.
Receive: When a new message is received this light glows briefly.
Floating Wire: Click STREAM to deploy the floating wire antenna. Click OFF to stop the winch. Click
RETRIEVE to retrieve the wire.The length of wire currently streamed is shown in feet to the right of
the switch.
Radio Antenna: Click RAISE or LOWER to extend or lower the Radio Antenna mast.
ESM Antenna: Click RAISE or LOWER to extend or lower the ESM Antenna mast.
ESM Signal Strength Indicator: These lights indicate the strength of the signal and ascend from
green to red as the signal grows in strength.
ESM Display: Contacts display on the bearing at which they are detected.The triangle cursor
selects a contact when centered on the bearing of the contact.
Bearing: Displays the bearing at the location of the cursor on the ESM Display.
Mark: Clicking here sends the bearing of the selected contact to TMA and the Nav map. ESM
contacts have
E designations.
Source: Displays the class name of the signal source designated by the triangle cursor.
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Radio Message Display
Message Received Indicator
Floating Wire Controls
Wire Deployed
Radio Antenna Mast
Controls
ESM Signal Strength Indicator
ESM Display
Bearing
ESM Contact
Mark
Source of Selected Signal
ESM Antenna Mast
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