Furuno LH-3000 - Manual (Page 22)

2. OPERATION
16
ANCH: Warning signal for vessels at anchor. A rapidly ringing bell tone sounds for a
duration of 5 seconds, repeated at an interval of 60 seconds.
60 s
5 s
Anchor signal
AGND: Warning signal for vessels aground. Two bell tones of 0.5 seconds, a bell tone of
1 second followed by a rapidly ringing bell tone for a duration of 5 seconds,
followed by a bell tone of 2 seconds and 0.5 seconds. Repeated once every 60
seconds.
60 s
0.5 s 0.5 s 1 s 5 s 2 s 0.5 s 0.5 s
Aground signal
Sounding a manual warning signal
1. Press the [Hail Select] key until the indicator lights for the desired horn speaker(s). If no
selection is made, “BOTH” will be automatically selected when a warning signal is
initiated.
2. Press the [Upper Signal Select] key to select YELP or press the [Lower Signal Select]
key to select MAN. The indicator begins flashing for the desired signal.
3. Press the [FUNC] key to activate the warning signal. The indicator stops flashing and
lights steadily.
4. Press the PTT switch on the microphone to sound the warning signal. Each time the
PTT switch is pressed, the warning signal will sound until the PTT switch is released.
When the PTT switch is released the equipment will return to the listen mode. Adjust the
[LISTEN VOL] control if necessary.
5. To temporarily interrupt manual signals with voice transmissions do the following:
1) Press the [Hail Select] key. The indicator for the chosen signal flashes to indicate the
signal is still selected, but not active.
2) Press the PTT switch on the microphone and speak into the microphone. Your voice will
sound to all stations.
3) Release the PTT switch again to return to manual warning signals.