Furuno LH-5000 Operator's Manual page 36

LH-5000 Operator's Manual
Warning
Signal
Manually Sending a warning signal
Step 1 Press the FOG key on the front panel.
The FOG key flashes red
Step 2 Press the Up or Down key to select "MANUAL" or "YELP".
The following information appears on the screen.
The FOG key begins flashing.
Step 3 Press and hold the PTT key on the microphone.
The following information appears on the screen.
Function
once every 60seconds.
0.5s 0.5s 0.5s
5s
Aground Signal
31
Operation Overview
Remarks
60s