Making An Automatic Distress Call; Receiving A Dsc Call - West Marine VHF490 Owner's Manual

Fixed-mount marine radio
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Calling all stations (All-Ships Call)
All ships calling contacts all DSC radios within range of your boat. You should only use all ships calling in the event of a Safety
warning (such as debris in the water) or to request assistance in an Urgency (any situation where your vessel has a serious problem
but is not yet in distress).
1. Open the call menu.
2. Select All Ships, and then choose whether this is an Urgency call or a Safety call.
3. The radio asks you to confirm the call. Select Send to continue with the call or select Cancel to cancel the call.
4. The radio automatically switches to channel 70 to transmit the call request then automatically switches to channel 16, the
designated response channel for all-ships calling.

Making an Automatic Distress Call

If you have programmed your MMSI number, your radio can transmit an automated distress call with your current location and nature
of the distress. The radio then monitors the channel 16 for a response and repeats the distress call every few minutes until it receives
an acknowledgement.
NOTE: To send an automatic distress call, press and hold DISTRESS for three seconds. If no MMSI number has been pro-
grammed, the radio prompts you to enter your MMSI number.
If you want to include the nature of your distress in the distress call, use the following distress procedure:
1. Press DISTRESS.
2. The radio displays the list of distress conditions; use CHANNEL UP and CHANNEL DOWN to choose the nature of your
distress, then press and hold DISTRESS for three seconds.
Undesignated
Adrift
Collision
Overboard
3. If no MMSI number has been programmed, the radio prompts you to enter your MMSI number.
Canceling an automatic distress call
While the radio is waiting for a response, it gives you the option of canceling the call. To cancel the distress call, choose Cancel
and press ENT-1W/25W.

Receiving a DSC Call

If your radio receives an individual DSC call from another station, it sounds an incoming call tone and displays the name or MMSI
number of the station calling you. To respond to the call, select Send: Able-Comply; the radio sends an acknowledgement
and automatically switches to the designated response channel. To reject the call, select Send: Unable-Comply; the radio advises
the other station that you are unable to respond to the call.
If the DSC request contains a response channel that you are not allowed to use, the radio displays Not Support CH; your only
response option is Send: Unable-Comply.
If the radio receives a group or all ships call, it sounds an incoming call tone and automatically switches to the designated response
channel.
Receive log
Just like your telephone' s caller ID list, your radio keeps track of the calls you receive but do not answer. The receive log is useful
if you have been off your boat or away from your radio and want to see who has tried to contact you. The radio displays the last 10
distress calls and the last 20 non-distress calls that it received. If you have unread incoming DSC calls, the radio displays a Message
icon. When you display all Distress and Other receiving logs, the message icon disappears.
Sinking
Flooding
Piracy. Armed
Capsizing
VHF490 RADIO
Fire
Abandoning
Grounding
1-800-BOATING
17

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