Specifications

MT-550 37
• Press the PTT button on the microphone to silence the alert and begin voice
communication with the called vessel.
• The
END
key may be used to exit the DSC calling procedure at any time
prior to sending the call.
- Manual Call
The manual call procedure is used to make a DSC call to a vessel or station that is
not listed in your calling directory. However, you must know the MMSID for the
vessel or station.
To make a manual DSC call:
• Press the
CALL
key. The DSC calling menu appears in the display with the
cursor indicating INDIVIDUAL topic.
INT
>INDIVIDUAL
GROUP
ALL SHIP'S
RECEIVED
DSC Individual
• Push the SELECT/ENT knob or press the
CALL
key. The INDIVIDUAL
menu appears in the display.
• Use the SELECT/ENT knob to select the MANUAL topic.
INT
INDIVIDUAL
DIRECTORY
>MANUAL
Individual Menu
• Push the SELECT/ENT knob or press the
CALL
key. The SET
CHannel/SET MMSID screen appears in the display.
• Use the SELECT/ENT knob or microphone keys to select a working channel.
Four channel numbers appear in the display as suggested channels
authorized for the call to vessel. Other channels may be used if authorized in
your area.
NOTE
If the call is to the coast station, you should not select a working channel. Even if
you select, MT-550 ignores it when transmits the call.
• Push the SELECT/ENT knob. The blinking cursor moves to the first digit in
the MMSID entry field. If the last used manual MMSID is displayed, push the
SELECT/ENT knob once again.
• Use the SELECT/ENT knob or microphone keys to change the MMSID for the
vessel or station to call.