VLH-3000Page 12
6.4 Automatic Signaling
Automatic Signaling is typically transmitted through the PA horn, but the
VLH-3000 can also send these signals to the intercom speaker(s).
1. Select the PA horn to be used by pressing the FWD, BOTH, or AFT
button.
2. Press the one of the AUTOMATIC SIGNALING button to send the de-
sired signal to the selected PA horn:
Fog Horn Signaling
UNWY (Underway): Sends one 5-second blasts ever 2 minutes.
STOP: Sends two 5-second blasts (separated by 2 sec-
onds) ever 2 minutes.
SAIL: Sends one 5-second blasts followed by two 1-sec-
ond blasts (separated by 2 seconds) ever 2 min-
utes.
TOW: Sends one 5-second blasts followed by three 1-sec-
ond blasts (separated by 2 seconds) ever 2 min-
utes.
ANCH (Anchor): Sends one 5-second rings every 1 minute.
AGND (Aground): Sends one 11-second rings every 1 minute.
Passing signals
SIREN: Sends a varying pitch (yelping) tone while pressing
the microphone PTT button.
HORN: Sends a passing signal while pressing the micro-
phone PTT button.
NOTE
The horn function is useful while underway to alert another vessel of
your intention. A short blast is a press of the PTT for 1 second and a
prolonged blast is a press of the PTT for 2 seconds:
- one short blast to mean “I am altering my course to starboard”;
- two short blasts to mean “I am altering my course to port”;
- three short blasts to mean “I am operating astern propulsion.”
3. Rotate the PA knob to adjust the AF output level. The AF output level can
be set from 0 to 30 watts.
4. When the Fog signal or Siren and Horn signals are not transmitted to the
PA horn, turn the LISTEN/PWR knob to increase or decrease the listen
back volume from the PA horn.
5. Press the PA button to disable the Automatic Signaling feature.
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