MT-550
55
DSC Call Types:
See chart below:
Format Specifier
Category
First Telecommand
Symbol number
RX TX
Distress - (112)
F3E/G3E Simplex - (100)
X
X
All Ship’s - (116)
Distress - (112)
Distress ACK - (110)
X
All Ship’s - (116)
Distress - (112)
Distress RELAY - (112)
X
All Ship’s - (116)
Urgency - (110)
F3E/G3E Simplex - (100)
X
X
All Ship’s - (116)
Safety - (108)
F3E/G3E Simplex - (100)
X
X
Individual - (120)
Urgency - (110)
F3E/G3E Simplex - (100)
X
Individual - (120)
Safety - (108)
F3E/G3E Simplex - (100)
X
Individual - (120)
Routine - (100)
F3E/G3E Simplex - (100)
X
X
Individual - (120)
Routine - (100)
Ship Position - (121)
X
X
Group - (114)
Routine - (100)
F3E/G3E Simplex - (100)
X
X
2
nd
Telecommand
Transmit & Receive (126) - No Information.
DSC Distress Key:
Red & Covered. Plastic Cover is hinged to
prevent loss. Key is backlighted full time. Hold
down 3 seconds-countdown timer is displayed.
DSC Call Log:
32 Entries. Instant call back any Log Entry with
Individual Routine call.
Caller’s Name is displayed if MMSID matches to
Directory Entry.
DSC Directory:
32 Entry list with scrolling and Auto Sorting.
Entries can be edited to Line/Character
position.
MMSID:
Own Ship’s & Group are stored in nonvolatile
memory.
Memory Scan Channels:
Unlimited with instant editing and can be
cleared on Power-up. The Memory Channel list
is presented in a Page Mode format with instant
ADD/DELETE function.
Alarm Tones:
3 different tone sequences are provided.
Frequency Control Method:
Phased Locked Loop (PLL).
Frequency Stability:
+/-5 PPM for both the Transmitter/Receiver.
GPS/NMEA: $GPGLL/GGA/RMC/GNS
sentence
is
decoded.
NMEA Checksum can be turned Off/On.
GPS Display:
Data is selected from following:
•
Date & local time & LL Position (3 digit for
seconds).
•
SOG/COG& LL Position (3 digit for
seconds).
•
Time & Manual LL Position (2 digit for
seconds).
•
No Data.
